Copper Essays & Research Papers

Best Copper Essays

  • Copper - 625 Words
    Aim: The aim of this experiment is to convert copper metal through a series of intermediate copper compounds back into copper metal. By weighing the copper at the beginning and at the end of the experiment the percentage yield can be determined. Method: The experiment was carried out as outlined in the practical manual. Results: Table: showing masses: Mass copper wire 0.2510 Mass crucible 28.9257 Mass watch glass 19.6213 Mass watch glass + copper 19.7890 Mass...
    625 Words | 3 Pages
  • Copper essay - 531 Words
     Coursework 4 Copper Name of student: Alfiya Ospanova Tutorial group: G Copper is one of the earliest elements explored by humanity. Due to the special red shade it was easy to find in ancient times. The metal was named according to place where it was found, the Cyprus islands. Copper produced in massive stars and spread in the world as minerals like chalcocite and chalcopyrite (sulfide of copper), azurite and malachite (carbonate of copper), cuprite (oxide of...
    531 Words | 2 Pages
  • Copper Cycle - 697 Words
    Elena Chen CH 221-227 November 3rd, 2009 Lab Report #3: Copper Cycle Abstract: The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle, copper was present in different forms. First reaction involves reaction between the copper and nitric acid, and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed...
    697 Words | 3 Pages
  • Copper Metal - 360 Words
    Copper is an element with the symbol Cu and atomic number 29. Copper is classified in periodic table: Its element category is transition metal; Its group is 11; Its period is 4; Its atomic weight is 63.546. Copper metal and alloys have been used for thousands of years. Physical properties:- Copper has a characteristic reddish brown color. Its density is 8.93 g cm. Its melting point is 1083`C. It is highly malleable and ductile at ordinary temperature. It is a very good conductor of...
    360 Words | 2 Pages
  • All Copper Essays

  • Extraction of Copper - 402 Words
    Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable...
    402 Words | 3 Pages
  • Copper Cycle - 273 Words
    If the experiment had been completed with no error, the percent recovery should have been no lower than 90%. In our case, the recovery was 69% which shows that some mistakes were made along the way. Several errors were made during the lab procedure that caused the copper to be lost in the end result. In reaction one, tap water could have been left in the bottom of the beaker when the Nitric acid was added which could have caused the reaction to be changed which could have caused less copper to...
    273 Words | 1 Page
  • Copper Corrosion - 669 Words
    The Effect of pH Level of a Liquid on the Rate of Corrosion of Copper wire In this experiment, I will be testing the corrosion rate of copper wire after leaving them in different liquids with different pH levels. By doing so I will be able to determine which pH level corrodes copper the fastest. I will conduct this experiment by pouring 250mL of different liquids with different pH levels in cups, followed by an iron strip placed into the cup. A stopwatch will be timing how long it takes the...
    669 Words | 3 Pages
  • Copper Plant - 3350 Words
    Copper is an element that occurs in minor amounts in the earth’s crust. Estimates of average crustal prevalence are on the order of 0.0058 percent by weight. Deposits considered to be economically recoverable at current market prices may contain as little as 0.5 percent of copper or less, depending on the mining method, total reserves, and the geologic setting of the deposit. Here is the flow sheet on how to process copper from Zenith. Copper Process Flow Sheet: Copper ore is first quarried...
    3,350 Words | 10 Pages
  • Dissolution of Copper - 535 Words
    Equations: 1) Cu + 4H+(aq) + 2NO3-(aq) Cu2+ + 2NO2 + 2H2O 2) Cu2+(aq) + 2-OH(aq) Cu(OH)2 3) Cu(OH)2 + heat CuO + H2O 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O 5) Cu2+(aq) + Zn Cu + Zn2+(aq) Stage 1- Dissolution of Copper Mass of vial & copper = 3.537g Mass of vial = 2.505g Mass of Copper = 1.032g Moles of copper = mass (g) ÷ (63.5g/mol) = 0.0162 mol (3s.f) Copper description: Initially, the copper was a solid that...
    535 Words | 3 Pages
  • Copper Cycle - 1582 Words
    TITLE : The copper cycle IN TRODUCTION The purpose of the experiment is to recognize that change of state, change in colour, formation of a precipitate, or the evolution of heat are associated with a chemical change; to study reactions of copper. Copper is an element that can be found in nature in a variety of different compounds. The most common natural ore is the sulphide, known as chalcocite, Cu2S. This mineral is an important source of copper metal because it is about 80% copper by...
    1,582 Words | 5 Pages
  • Copper Reactions - 1330 Words
    ------------------------------------------------- ABSTRACT ------------------------------------------------- The copper reaction experiment was demonstrated by adding the reagents like 16M HNO3, Distilled water, 6M NaOH, 6M H2SO4, Acetone, Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagents were being added. It was also demonstrated to practice the common laboratory techniques such as...
    1,330 Words | 5 Pages
  • Copper: Environmental Effects of Copper and How Copper is Processed
    Environmental effects of copper Copper can be released into the environment by both natural sources and human actions. Examples of natural sources are wind-blown dust, decaying vegetation, forest fires and sea spray. Other examples are mining, metal production, wood production and phosphate fertilizer production. Because copper is released both naturally and through human activity it is very widespread in the environment. Copper is often found near mines, industrial settings, landfills and...
    639 Words | 3 Pages
  • Percent Copper and Formula of a Copper Compound
    Percent Copper and Formula of a Copper Compound Sofia Economides Date Preformed: 3/19/2012 Date Submitted: 3/26/2012 Lab Partners: Anita Smith, Taylor Bell, Derek Bourgeois 1. Purpose a. To determine the percent of copper and the formula weight of a copper compound. 2. Introduction a. Magnesium is a very active metal which can reduce copper (II) ions in a weight sample of a compound to metallic copper. The reduction of copper ions in a compound to a copper...
    691 Words | 3 Pages
  • % Copper in an Ore - 774 Words
    Quantitative Analysis: % Copper in an Ore May 3, 2006 Abstract: In this experiment we were given an unknown sample of ore. Using the spectrophotometric analysis and the electrogravimetric analysis, we found the unknown percentage of copper in the unknown sample of ore was to be 17.6% by mass. Introduction: Chemical analysis takes place under two different scenarios. In one case, you need to find out the chemical identity of some material. The first kind of analysis, in which the...
    774 Words | 2 Pages
  • COPPER CYCLE - 606 Words
    Charles Parker Investigation 6: The Copper Cycle CHEM 101 Lab-M/630 As an investigation of the copper cycle lab group 6 conducted an experiment on 6 October 2014 at Arizona State University laboratory that would demonstrate the cycle of reactions that copper (Cu) can produce when introduced to with other substances/reactant. The purpose of the investigation was to notice the transformation of a specific quantity of copper wire (g) as it undergoes its coordination reactions until a reduction...
    606 Words | 2 Pages
  • Copper Cycle - 4543 Words
    The Copper Cycle Most of the background material for this laboratory will be covered in greater detail in the lecture course later in the semester. Here is some background information so you will understand the chemistry behind the reactions you will perform. Many aspects of our lives involve chemical reactions—from the batteries that power our cars and cell phones to the thousands of processes occurring within our bodies. Most of these reactions can be classified into one of three main...
    4,543 Words | 23 Pages
  • Dissolving Copper with Nitric Acid and Recreating It as Copper
    AP CHEMISTRY Copper To Copper Lab Report Tyler Davidson 9/8/2010 This contains a lab report for the copper to copper lab.   Table of Contents Introduction Procedures Data Analysis and Conclusion Abstract   Introduction The purpose of this lab was to find out if we could dissolve a certain amount of copper with nitric acid and recreate it back to copper using a series of procedures. Chemicals used were sulfuric acid, sodium hydroxide, and zinc...
    368 Words | 2 Pages
  • Extraction of Copper from Oxidised Copper Ore
    EXTRACTION OF COPPER FROM OXIDISED COPPER ORE Aim: To analyse how copper is obtained from oxidised copper ore using the processes of leaching, solid-liquid separation, displacing and electrowinning. Method: Refer to ‘Extraction of Copper from oxidised Copper Ore’ document pages 1-2 Results: Leaching: The blue particles in the copper ore which is copper was dissolved in the sulphuric acid and the solution turned into a blue colour. There was also sediment that was floating around...
    863 Words | 3 Pages
  • Copper Reaction (Discussion) - 359 Words
    The initial mass of copper wire was 1.250g but the recovered copper was only 0.120 subtracting the mass of the recovered copper with beaker from the tare beaker mass. So the percentage yield resulted only to 9.6% it is very little, and it may be due to many possible sources from doing the steps. Adding too much or too little of a compound to the copper solution,or the loss of copper during transport or by being left on the stirring rod. Another situation which was a source of error is when the...
    359 Words | 1 Page
  • Copper sulphate experiment - 356 Words
    Copper sulphate experiment Introduction There are a number of different methods of making salts, such as the reaction of a metal with an acid. Copper metal, however, does not react with sulphuric acid and so another method must be used. In this experiment a basic copper compound (copper(II) oxide) will be reacted with sulphuric acid giving copper(II) sulphate as one of the products. Method 1. Wear goggles and keep your face away from the beaker during the reaction 2. Place 20 cmm3...
    356 Words | 2 Pages
  • cycle of copper reactions - 580 Words
    Experiment 3 A Cycle of Copper Reactions Chemistry Department UCC 1st Year Practicals Introduction n  n  n  n  n  Copper is one of the most important metals. Copper is reddish with a bright metallic lustre It is malleable, ductile, and a good conductor of heat and electricity (second only to silver in electrical conductivity) Its alloys, brass and bronze, are very important Has various oxidation states: 0 in elemental copper, +1, and +2 which is observable in...
    580 Words | 7 Pages
  • Copper Wire Sizes - 517 Words
    Daniel Osherow ENGR 1301 5 December 2012 Copper Wire Sizes (EE) The diameter of a copper wire is measured by using a system called the American Wire Gauge also known as AWG. This system has predominantly been used in the United States and Canada since 1857. Using this measurement the cross-sectional area of a gauge is able to be found. We then use this area to determine the wires current carrying capacity. The gauge numbers for wire and diameter values work inversely, as when one increases...
    517 Words | 2 Pages
  • Copper Cycle Lab - 404 Words
    Purpose: During this experiment, we were trying to see whether copper, after a chain of chemical reactions, will revert back to its elemental form. Procedure: First, I added nitric acid with copper in a beaker, which turned into a copper nitrate, a blue-green solution. Afterwards, I added sodium hydroxide, and my solution colored to a dark blue solution called copper hydroxide. I heated the solution to evaporate the water and I got a brownish-blackish solid called copper oxide. Once...
    404 Words | 2 Pages
  • Copper Wire Resistivity - 408 Words
    Problem Does temperature affect the resistivity of different sized copper wires? Hypothesis I think that the resistivity will increase with higher temperatures because with higher temperature, resistivity is higher due to the fact the atomic lattice structure increases. Background Electrical resistivity is the measurement of how a material opposes the flow of an electrical current. On the other hand, electrical conductivity () is the inverse of resistivity. It is the...
    408 Words | 3 Pages
  • Let's Get Started with Copper
    Report Sheet Experiment 1 0 Balance the equations for the three reactions studied. Note, in all reactions the numbers of atoms of each type and the total charge must be equal on each side of the equation. Equations 1) Cu + 4H+(aq) + 2NO3-(aq)  Cu2+(aq) + 2NO2 + 2H2O 2) Cu2+(aq) + 2-OH(aq)  Cu(OH)2 3) Cu(OH)2 + heat  CuO + H2O (Balanced) 4) CuO + H2SO4  Cu2+(aq) + SO42-(aq) + H2O...
    663 Words | 3 Pages
  • Copper Synthesis Experiment - 1180 Words
    Experiment 1: Synthesis of Copper Compounds Introduction This experiment involves the synthesis of compounds originating from pure solid copper. By applying solubility rules and the reactive properties of substances, many compounds which would otherwise be costly to extract from nature are able to be synthesized in the laboratory. Laboratory synthesized may sometimes be more economical than natural extraction, however it poses its own problems with the amount of substance that is actually...
    1,180 Words | 4 Pages
  • Aluminum vs Copper - 4256 Words
    A COMPARISON OF ALUMINUM VS. COPPER AS USED IN ELECTRICAL EQUIPMENT Larry Pryor, P.E. – Sr. Specification Engineer, GE Consumer & Industrial Rick Schlobohm, P.E. – Sr. Specification Engineer, GE Consumer & Industrial Bill Brownell, P.E – Specification Engineer, GE Consumer & Industrial ABSTRACT The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on...
    4,256 Words | 21 Pages
  • copper processing plant for beneficiation
    copper plant for beneficiation Copper Ore Beneficiation Plant,Beneficiation Process … More Hot Products. Stone Crusher Project; Iron Ore Production Line; Gold Production Line; Mobile Crusher; More About Gulin. Shanghai Gulin Machinery Co., Ltd. is ... You can get copper ore processing plant here! http://www.millmaker.com/ap/copper-ore-processing-plant.html You can get copper ore crusher here http://www.millmaker.com/news/38.html Copper mineral processing plants - Copper Ore …...
    919 Words | 5 Pages
  • Synthesis of Copper Compounds - 362 Words
    CONCLUSION The purpose of this experiment was to synthesize several compounds of copper from metallic copper. Throughout the experiment, various tests concluded that it was possible to recover the initial copper as metallic copper through a number of reactions. The objective of the experiment was met, with the formation of metallic copper after a series of reactions. It was found that solid copper reacts like nitric acid to form copper (II) nitrate, and this was observed when the solution...
    362 Words | 1 Page
  • Copper in Silver Nitrate Lab
    Copper in Silver Nitrate Lab: Making Silver Sabrina Kate S. Carranza – Chemistry Hour 6 I. Purpose: The purpose of this experiment is to distinguish the relationships between reactants and products, in addition to expanding on concepts such as single displacement reactions, mole ratio values, moles to mass, theoretical yields, limiting reactants, excess, stoichiometric relationships and percentage errors. II. Hypothesis: /3 -If the copper metal is submerged in the silver nitrate...
    1,020 Words | 4 Pages
  • Conclusion: Zinc and Synthesis Copper
    Conclusion The purpose of this experiment was too start with an initial weight of Copper, synthesis copper (II) Nitrate, Copper (II) hydroxide, Copper (II) Oxide and Copper (II) Sulphate, than see how close the percent recover was to 100%. The percent recovery found during this experiment was 309%, this was due to multiple influences. Examples of these influences are foreign materials and incomplete removal of Zinc. The biggest influence was incomplete evaporation of water in the recovered...
    212 Words | 1 Page
  • chile copper mining processing
    chile copper mining processing copper mining equipment Chile, copper processing … We offer you the most complete service, including design, commissioning, construction to maintenance. Chilean nationalization of copper - Wikipedia, the free ... The nationalization of the Chilean copper industry, commonly described as the Chilenización del cobre or "Chileanisation of copper," was the progressive process … You can get plant here! copper ore mining equipment...
    965 Words | 5 Pages
  • Decomposing Copper Carbonate - 674 Words
    Decomposing Copper Carbonate This is an experiment to find out how much CuO (copper oxide) is left and how much CO2 (carbon dioxide) is given off after heating a certain amount of CuCO3 (copper carbonate). The table below shows the results: Mass Of Crucible (g) | Mass of CuCO3 added (g) | Mass of crucible and copper oxide (g) | Mass of CuO produced (g) | Mass of CO2 given off (g) | 11.53 | 0.25 | 11.76 | 0.23 | 0.02 | 15.63 | 0.50 | 15.96 | 0.33 | 0.17 | 11.53 | 0.75 | 12.03 | 0.50 | 0.25...
    674 Words | 2 Pages
  • Market Brief - Copper Wire
    MARKET BRIEF COPPER WIRE IN THE PHILIPPINES Table of Contents 1. Overview a. Description about the Copper in the Philippines b. Trade Data c. State Competitors 2. Consumer tastes 3. Trade policy and its derivatives products in the Philippines 4. Marketing Distribution Channels 5. Analysis a. Strength; b. Weakness; c. Opportunities; d. Barriers; 6. Recommendations; 7....
    6,856 Words | 40 Pages
  • COPPER OR CARBON LAB - 493 Words
    Copper or Carbon? Lab Problem: Materials scientists work to find the best materials for different products. In this lab, you will look for an answer to the following problem: How do the properties of copper and graphite determine their uses? You will compare the properties of a copper wire and a pencil lead. Pencil lead is made mostly of graphite, a form of the nonmetal element carbon. Materials: D-cell battery 250-mL beaker flashlight bulb and socket stopwatch 2...
    493 Words | 2 Pages
  • Chemical Reactions of Copper Compounds
    Chemical Reaction of copper compounds Introduction: In this experiment, the objective was to conduct a series of chemical reactions that contain copper or copper compounds. That is to say that the products of each chemical reaction were used in the next reaction. The process starts with a solid copper wire dissolved in nitric acid and the end product is copper powder. The product which was used from the previous reaction is the limiting. In the initial step, the solid copper is the limiting...
    795 Words | 3 Pages
  • Treatment Of Copper Flash Smelter Flue Dusts For Copper And Zinc Extraction And
    Hydrometallurgy 105 (2010) 148–154 Contents lists available at ScienceDirect Hydrometallurgy j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / l o c a t e / h yd r o m e t Treatment of copper flash smelter flue dusts for copper and zinc extraction and arsenic stabilization A. Morales a, M. Cruells b, A. Roca b,⁎, R. Bergó b a b Universidad Católica del Norte, Department of Metallurgical Engineering, Antofagasta, Chile Universitat de Barcelona, Department of Materials Science and...
    5,508 Words | 31 Pages
  • Copper and Molybdenum Deposits in the United States
    Copper and Molybdenum Deposits in the United States Copper and molybdenum resources were not recognized as valuable commodities until economic needs demanded the collection and processing of these minerals in large amounts. The most expansive deposits of copper and molybdenum occur in massive low grade ores and are found in intrusive porphyry formations, although many smaller sized but higher grade ores are located in non-porphyry areas. The nation has abundant domestic copper ore reserves...
    2,776 Words | 8 Pages
  • Report on experiment determining the percentage of copper in the copper ore malachite.
    Determining the Percentage of Copper in a Copper Ore Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker, pestle, malachite, sulfuric acid, water, 2 x filter paper, funnel, filter stand, Safety Precautions: Wear safety glasses at all times when dealing with chemicals and apron to avoid ruining clothes. Method: Record the mass of the malachite sample. Place the malachite...
    380 Words | 2 Pages
  • The Reaction of Iron Nails with a Copper Solution
    Section Assignment 3.4 Part F – The Reaction of Iron Nails with a Copper Solution Introduction: The experiment in this activity involves the reaction between a copper (II) chloride solution with iron nails and the mole ratios involved in the reaction. Measurements are taken to determine the moles of each reactant involved in the reaction and thus the number of atoms or molecules involved. Apparatus and Materials: Refer to the reaction of iron nails with a copper solution assignment in...
    939 Words | 3 Pages
  • HR Policies in Hindustan Copper Limited
    HR POLICIES IN Hindustan Copper Limited/Indian Copper Complex A Summer Internship report Presented to the Faculty of the MBA Program New Delhi Institute of Management In (Partial) Fulfilment of the Requirements for the Degree Post Graduate Diploma in Management (2010-2012) By Maharani Monika Kumari Roll No: 141 50 (B & ) , 60, Tughlakabad Institutional Area , New Delhi-110062, e-mail :info@ndimdelhi.org. website : http://www.ndimdelhi.org pg. 1 Summer Internship Report HR...
    23,043 Words | 98 Pages
  • Metal and G/ml Copper Stock
    Lab: Copper-Neocuproine Method Performed by: Lab Partner: Date Performed: Purpose: To determine the concentration of copper present in a sample of water by complexing it with neocuproine and comparing it to a Beer’s Law calibration curve prepared with standards of a similar matrix. Analyte: Copper Instrument: ThermoSpectronic Genysis 10 UV spectrometer Unknown: provided water sample Result: 0.0510 µg/mL copper Procedure: The lab was carried out...
    1,134 Words | 5 Pages
  • Determine the moles of water in copper sulcate
    Data Collecting and Processing Raw data Table of raw data Qualitative observation: At the start of the experiment, the crystals were blue. During the heating, the crystals turned white which means that they lost their water molecules. The source of hydrated copper sulphate consists of both small grains and large grains of the salt. Therefore during the heating process, the smaller grains of the hydrated salt turned from blue to white in just 1 minute. In other words, there is an uneven...
    639 Words | 4 Pages
  • Introduction of Copper Concentrate Dryer Machine
    At present, the raw materials to refine copper in China mainly are towanite, chalcocite, bornite, malachite and etc. According to the technical conditions of smelting, the copper ore can be divided into three classes based on the proportion of copper oxide and copper sulphide, that is, sulfide ore, which contains less than 10% copper oxide;oxidized ore, which contains more than 30% copper oxide; mixed ore, which contains 10%~30% copper oxide. Copper is one of earliest metals that be found and...
    525 Words | 2 Pages
  • Oxidation and Reduction Reactions: the Reactions of Copper
    Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved, solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper...
    516 Words | 2 Pages
  • The reaction of Iron with Copper(II) Sulfate
    Lab: STOICHIOMETRY The reaction of Iron with Copper(II) Sulfate Purpose: In this experiment we will use stoichiometric principles to deduce the appropriate equation for the reaction between metallic iron and a solution of copper (II) sulfate. This reaction produces metallic copper, which is seen precipitating as a finely divided red power. Materials: Flask beaker Copper solution Balance Hot plate •150 ml beaker •1 gram of iron...
    566 Words | 3 Pages
  • Electroplating: Rules, Practical using Copper
     1) What is Electro-Plating? Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis. 2) What is Copper Plating? Copper plating is a coating of copper metal on another material, often other metals. Plating is designed to increase durability, strength, or visual appeal, and copper plating specifically is often used to improve heat and electrical conductivity. 3) What are the uses of electro-plating/copper plating?...
    500 Words | 2 Pages
  • Finding the Percentage Of Copper in a Brass Alloy
    Unit Name: Analysis at Work Unit Number: G621 Assignment Title: Finding the Percentage of Copper in a Brass Alloy Assignment: G620 Sample Assignment C Date Set: Due Date: Assessment Objective(s): AO3 Vocational Brief: Brass is an alloy of copper and zinc. This alloy has many uses ranging from coinage to non-ferrous fittings on ships. Many domestic taps use brass where contact with water occurs. You are provided with a sample of brass which is about 150 years old and you...
    826 Words | 3 Pages
  • Copper Iron Stoichiometry Lab Report
    Copper-Iron Stoichiometry Lab Report 10/3/12 Abstract: The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu...
    1,807 Words | 6 Pages
  • Round-Trip Copper Reactions Lab Report
    AP Chemistry 12/13/11 Round-Trip Copper Reactions Lab The purpose of this lab was to evaluate our skills of decanting a supernatant liquid without losing the solid and successful completion of a series of reactions. This was done through five chemical reactions involving copper. In this lab, elemental copper was put through five different chemical reactions in order to convert it into different compounds. By the end of the fifth reaction, the copper was back to its elemental state. In...
    842 Words | 3 Pages
  • Determining The Percent Copper and Zinc in Pennies From Density
    Determining The Percent Copper and Zinc in Pennies From Density Purpose: Practicing determine the density of the solution. Developing the method for determine the percent of density for the solution. Examining the linear relationship by learning to use the best-fit straight line. Using the linear relationship to determine the percent of density by the solution. Be familiar with recording data and observations. Methods & Material: Methods: Weight the mass for the different percent...
    1,204 Words | 4 Pages
  • Installing 70/30 Copper-Nickel Pipe
    Installing 70/30 copper nickel (cuni) pipe sometimes can be a test of human patients, mechanical knowledge, and dexterity. It is, however, well worth the effort, because once you complete the job whether you’re a novice or connoisseur of the art you gain a sense of pride for a job well done. Additionally, you will have confidence in knowing that your pipe will stand the test of time and vigorous challenges they’re used for. The only problem that comes with working with 70/30 cuni pipe is, having...
    1,576 Words | 4 Pages
  • Effect of Temperature on the Conductivity and Resistance of a Copper Wire
    Materials  5 meters of varnish insulated copper wire with diameter 0.5mm  PVC pipe- 300mm length  3- 1.5 volt batteries with casing  3- jumper wires with crocodile clips  Multimeter  Scissors  Infrared Thermometer  1 roll of insulation tape Procedure 1. Wind the wire around the PVC pipe. Fix the ends of the wires to the insulation tape. Remove about 3 cm. of insulation from the wire using the tips of the paper knife. Measure the resistance of the wire using the...
    427 Words | 3 Pages
  • Simultaneous Determination of Copper, Zinc and Lead by Adsorptive Stripping Voltammetry in the Presence of Morin
    Analytica Chimica Acta 501 (2004) 119–124 Simultaneous determination of copper, zinc and lead by adsorptive stripping voltammetry in the presence of Morin E. Shams a,∗ , A. Babaei b , M. Soltaninezhad b a Institute for Advanced Studies in Basic Sciences, Zanjan 45195-159, Iran b Department of Chemistry, Arak University, Arak, Iran Received 24 November 2002; received in revised form 5 September 2003; accepted 15 September 2003 Abstract A sensitive and selective method for the...
    3,751 Words | 11 Pages
  • Investigation: Developing an Activity Series for Metal Copper (Ii), Magnesium and Nickel
    Investigation: Developing an Activity Series for Metal Copper (II), Magnesium and Nickel Tong Wu Question: “What is the effect of solution type and metal type on metal reactivity as measured by whether a chemical reaction has taken place? ” Prediction: *Using metal magnesium as an example illustration I. (Magnesium reacts with lead (II) nitrate) Mg + Pb(NO3)2 Pb + Mg(NO3)2 II. (Magnesium reacts with zinc nitrate) Mg + Zn(NO3)2 Zn + Mg(NO3)2 III. (Magnesium reacts...
    2,401 Words | 8 Pages
  • Determination of Trace Amount of Copper and Zinc in an Aqueous Solution by Atomic Absorbance Spectroscopy
    Determination of Trace Amount of Copper and Zinc in an Aqueous Solution by Atomic Absorbance Spectroscopy Abstract: The purpose of this experiment is to analyze a sample containing copper and zinc in trace amounts, where standard addition method was used and the instrument used is the atomic absorbance spectroscopy. The amount of copper obtained was 0.569 ppm ± 0.015 and for zinc we obtained 0.42 ppm ± 0.0027. Introduction: This method implies the excitation of particles in the solution...
    993 Words | 3 Pages
  • Analysing the Data Created By Copper Displacing Silver in a Silver Nitrate Solution
    ANALYSING THE DATA CREATED BY COPPER DISPLACING SILVER IN A SILVER NITRATE SOLUTION PURPOSE This lab was done to achieve many things, such as creating the properly balanced chemical equation using mol ratios and to confirm and apply the principles of stoichiometry in a real situation with collected data. MATERIALS Copper wire Scale Clean dry beaker 0.75g (approx.) silver nitrate 100mL (approx.) water Glass rod (stirring) Filter paper Distilled water Incubator Note: The watch...
    1,011 Words | 6 Pages
  • Science Lab - 562 Words
    Julia Supangan blk. 2-4 The Reaction of Various Metals with Ionic Salts Purpose: To examine the reaction of various metals with ionic salts Materials: * 4 test tubes * test tube racks * 10mL measuring cylinder * 4 metals (in containers)- Zn, Sn, Mg, Fe * copper (II) sulphate solution Safety: 1. Be careful with copper (II) sulphate solution it is poisonous and corrosive. handle with care 2. Do NOT BREATH in any gases produced 3. If you touch any of the...
    562 Words | 2 Pages
  • women empowerment - 289 Words
    1) TO STUDY THE VARIATION OF RESISTANCE WITH THE NATURE OF MATERIAL For this Nichrome and copper wires of same length (1m) and area of cross section(0.5mm) are taken. One of them (say nichrome) is connected in the circuit and the rheostat is adjusted to get a voltage(V) in the circuit. The corresponding ammeter reading(I) is noted and the ratio V/I=R is calculated. The procedure is repeated for different values of...
    289 Words | 1 Page
  • Chalcopyrite - 558 Words
    Chalcopyrite is a sulfide mineral of copper and iron; it is the most common ore mineral of copper. Chalcopyrite has a chemical composition of CuFeS2 and is brassy to golden yellow in colour with an iridescent tarnish. It also yields gold and silver as a by product. Pyrometallurgical extraction This is a process of copper extraction from the chalcopyrite ore into pure metal. Firstly the copper ore is crushed and ground before it is concentrated between 20-40% copper. The copper is...
    558 Words | 2 Pages
  • Wires - 472 Words
    Wire A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical loads or electricity and telecommunications signals. Wire is commonly formed by drawing the metal through a hole in a die or draw plate. Standard sizes are determined by various wire gauges. The term wire is also used more loosely to refer to a bundle of such strands, as in 'multistranded wire', which is more correctly termed a wire rope in mechanics, or a cable in electricity....
    472 Words | 2 Pages
  • Product and Material - 2810 Words
    Course title: Product and Material in modern society Course code: ME1D02 Project title: Application of materials in kitchenware: Frying Pan Name: Pun, Yinkiu Student ID: 12118148d Page number: Submission Date: 30th November, 2012 Content Section 1: Introduction and Objective-------------------------------------------p.3 Section 2: Literature review--------------------------------------------------------p.4 Section 3:...
    2,810 Words | 9 Pages
  • The Industrial Uses of Gold and Silver
    The Industrial Uses of Gold and Silver Metals such as gold and silver have been considered precious throughout history for their rarity and aesthetic appeal. These elements are important in modern industry as technological advances expand the applications and uses of their unique physical properties. The uses of these two metals are found in almost every field of interest. From medical to aerospace technology, the applications of these substances provide another reason for their desirability....
    543 Words | 2 Pages
  • Single Dwelling Family - 359 Words
    Single Family Dwelling The dwelling has 19 lighting outlet and 12 convenience outlet. It has the typical household appliances including one 8-kw electric range, two 1.5-hp room air conditioning unit, one 2.5 kw water heater, one laundry washing machine. Lighting Layout Power Layout Lighting and Power Panel | CircuitNo. | Description | No. of Outlet | Volts | Watts | Phase Current | Circuit Breaker | Conductor size (mm2) | Size of Conduct | | | | | | | AT | AF | P | | |...
    359 Words | 2 Pages
  • Chemistry- Metals - 1828 Words
    TOPIC 2 Metals The History of Metals * Uses of metals through history: * Copper Age (3200-2300 BCE) – copper and tin were most common metals, and were used for ornaments, weapons and tools. * Bronze Age (2300-700 BCE) – copper, tin and bronze were used for tools, weapons and transport. They produced bronze by heating copper and tin with charcoal. * Iron Age (1000 BCE – 1 CE) – iron steel and lead was used for tools, weapons and pipes. Iron is much harder than bronze....
    1,828 Words | 6 Pages
  • Solution Mining - 1278 Words
    SOLUTION MINING A Laboratory Exercise in Extracting Copper from a Synthetic Copper Ore Your Name __Mel Hine______________________ Partner’s Name __Jay Ranson____________________ Date _October 2, 2012____________ Introduction This laboratory exercise involves the use of dilute sulfuric acid (H2SO4) to leach...
    1,278 Words | 6 Pages
  • Subscriber Loop - 322 Words
    CHAPTER 3: SUBSCRIBER LOOP DESIGN Subscriber loop – is a pair of lines connecting the subscriber to the local exchange. It is a dc loop that serves as the path for the following. 1. Talk battery 2. AC signaling 3. DC signaling 4. Varying dc signaling Commonly used Term in Subscriber Loop Design * Cable – it is an assembly of conductor in protective coverage sheet arranged so that the connection can be used singly or a combination of it. * Underground cable - it is...
    322 Words | 2 Pages
  • Ghsjak - 367 Words
    Crushing and Milling (reducing ore size) Cu2S(s) + H20 (l) Water is added to make a pumpable slurry. Flotation (separation of valuable content) Cu2S(s) + H20 (l) CaCO3(s) (added to give a basic PH level) pine oil or C2H5OH (liquid called a frother) C3H5KOS2 (potassium amyl xanthate to make the copper particles cling to the bubbles as they rise to the surface) O2 (pumped into bottom of tank, agitates soloution and starts to froth, bringing bubbles to the surface) Cu2S particles...
    367 Words | 2 Pages
  • Lab Report - 839 Words
    LAB REPORT FOR EXPERIMENT 3 COPPER CYCLE OLANREWAJU OYINDAMOLA TUESDAY 27TH February 2013 Abstract This experiment is based on copper, to synthesize some copper compound using Copper (II) nitrate solution to obtain copper metal at the end. Changes of copper complexes when various are added and filtering out the precipitate by using Buchner funnel for vacuum filtration .The experiment started with preparation of copper (II) hydroxide and addition of copper oxide then addition of...
    839 Words | 4 Pages
  • Lab Report: Determining Percent Yield in a Chemical Reaction
    Purpose: To find out the percent yield of copper in the reaction between copper sulfate (CuSO4) and Iron (Fe). Materials: Balance 100-mL beaker 250-mL beaker Bunsen burner Copper sulfate crystals Glass stirring rod 100-mL graduated cylinder Iron filings Ring stand and ring Wire gauze Procedure: 1. Record mass of clean 100-mL beaker. 2. Add 8.0 grams of copper sulfate crystals to beaker. 3. Add 50.0 milliliters of distilled water to the crystals. 4. Put wire gauze on ring on ring...
    228 Words | 3 Pages
  • Chemistry Lab on Single Replacement Reactions
    Katerina Baeza Hernandez | | | | | | | |Zn |Mg |Cu |Pb | | |(+) clear liquid but the |(+) a black spot appeared on|(-) no reaction occurred |(-) no reaction | |Pb(NO3)2...
    307 Words | 2 Pages
  • Malanjkhand Training Report - 4184 Words
    A PROJECT REPORT OF INDUSTRIAL TRAINING AT “HINDUSTAN COPPER LIMITED” (MALANJKHAND COPPER PROJECT) A GOVT. OF INDIA ENTERPRISE, MALANJKHAND DISTRICT-BALAGHAT (M.P) SUBMITTED BY: SHASHANK NIMJE HIMANSHU JAIN (SAMRAT ASHOK TECHNOLOGICAL INSTITUTE, VIDISHA (M.P) 1|Page CERTIFICATION This is to certify that HIMANSHU JAIN AND SHASHANK NIMJE are the students of 3rd year at SAMRAT ASHOK TECHNOLOGICAL INSTITUTE, VIDISHA (M.P) batch 20082012 has undergone industrial training at MALANJKHAND...
    4,184 Words | 15 Pages
  • Protecting Your Door with High Voltage
    How to Protect Your Door with High Voltage In this article, I'll show you how to create a simple yet effective way of scaring off intruders. Of course, there are methods around this approach, but it's great for office pranks and general fun. The project requires a little background knowledge in electronics and circuitry, like reading schematics and using a soldering iron. Materials and Tools To build this project, you'll need: * A soldering iron * Flux-core solder * Insulated...
    771 Words | 3 Pages
  • Arup Bal' Report - 10945 Words
    A REPORT ON HUMAN RESOURCE “TRAINING AND RECRUITMENT” IN HINDUSTAN COPPER LIMITED (A Govt. Of India Enterprise) A report submitted in partial fulfillment of the requirement For the award of the Master of Business Administration (2011-13 session) Submitted to:-...
    10,945 Words | 60 Pages
  • Chem Ws - 299 Words
    ‫مدرستنا الثانوية اإلنجليزية,الشارقة‬ OUR OWN ENGLISH HIGH SCHOOL, SHARJAH A GEMS SCHOOL CHEMISTRY WORKSHEET TOPIC: METALS AND NON-METALS GRADE:8 Note: Revise the symbols and valency of metals and non-metals. Q1.What would you observe when you put a) Some zinc pieces into blue copper sulphate solution? b) Some copper pieces into green ferrous sulphate solution? c) An iron nail into blue copper sulphate solution? Q2.Complete and balance the following equations: a) Zn + O2 b) Pb + O2 c)...
    299 Words | 2 Pages
  • Chemistry- "Pennium" Lab Report
    Title: Calculating the Atomic Mass of “Pennium” Purpose: The purpose of this lab is to calculate the atomic mass of “pennium” using pennies made before 1982 and pennies made 1982 or after. Hypothesis: The atomic mass of the pennium will be the average of the average masses of a pre-1982 penny and a post 1982 penny. Procedure: 1. Obtain a bag of pennies 2. Determine the total number of pennies in the bag. Record the value. 3. Sort the pennies by date into 2 piles. One pile should consist...
    592 Words | 2 Pages
  • Lab Report - 392 Words
    Steven Leung 9/19/06 Lab Report The Empirical Formula of a Copper Oxide Purpose: To convert an unknown copper oxide to copper (Cu) metal using natural gas to provide a reducing environment as shown below: Cu O (s) + CH (g) ¨ Cu (s) + Co (g) + H O (g) From the mass difference between the unknown copper oxide and the Cu metal generated at the completion of the reaction and the molar mass of Cu and oxygen, the empirical formula of the original copper oxide can be calculated....
    392 Words | 2 Pages
  • Anti-Gravity Lifter - 435 Words
    Materials The materials required for this experiment: 9 wooden barbeque sticks (disposable skewers) 150 mm long each Approximately 500 mm of copper wire Red and black insulated wire (0.5 mm) , 5 meters long each 1 tube of super adhesive glue 1 roll of scotch tape 1 roll of insulation tape Aluminum foil 50mm x 500 mm 1 DC high voltage power supply ?up to 50kV at 5005A Ruler Paper knife 1 resistor 10kohm, 2W Procedure 1. For this experiment, the independent variable is the DC...
    435 Words | 2 Pages
  • Metals - 2369 Words
    Chemistry: Research task 1 5.1- define the terms mineral and ore with reference to economic and non-economic deposits of natural resources The term ‘ore minerals’ is commonly referred to as economic minerals Mineral: naturally occurring compounds. Rocks are mixtures of various minerals. Most minerals are lattice structures, both ionic and covalent. Economic minerals have been divided into two main categories: Metalliferous minerals- mined to extract a metal Industrial mineral- either has...
    2,369 Words | 8 Pages
  • Rare earth - 9083 Words
    The World Copper Factbook 2013 About ICSG The current members of ICSG are: Australia The International Copper Study Group (ICSG) was formally established as an autonomous inter-governmental organization on 23 January 1992, following a series of Ad Hoc meetings sponsored by the United Nations (UNCTAD) in 1986 and 1987 to review the world situation of copper and discuss the need for such a body. ICSG serves to increase copper market transparency and promote international...
    9,083 Words | 132 Pages
  • Electroplating - 298 Words
    Electroplating is the process of coating an electrically conducting surface with a thin layer (seldom more than 0.001 in [0.025 mm] thick) of metal by electrolytic deposition. In electroplating, the object to be plated is made the cathode in an electrolytic bath of salts of the metal to be plated. The anode may be an unaffected metal, or, more commonly, the metal to be plated. An electriccurrent is passed through the solution, which results in the deposition of a thin metal plating in the...
    298 Words | 1 Page
  • Effects of Metallurgy On Human History
    Jacob Frank History Effects of Metallurgy On Human The human species has proved to be the most technologically advanced and most adaptive species ever identified by us in the Universe. You may be asking yourself, how did we get to where we are now? What led to the great rise of civilization and Western civilization? The answer lies in the Celts and the people of the Middle East, and their discovery of copper and ...
    1,707 Words | 2 Pages
  • Muntz Metal - 1309 Words
    Finding the percentage of copper in brass alloy. Introduction This is an investigation to find out how much copper is in a brass alloy. The brass alloy we are experimenting on is called Muntz Metal. Muntz metal is 60% copper, 40% zinc and a hint of copper [http://en.wikipedia.org/wiki/Muntz_metal] (accessed 4/10/12). Muntz metal was developed as an alternative to expensive, heavy copper. It is comprised of about 60% copper and about 40% zinc, with a small amount of iron. The finished product...
    1,309 Words | 5 Pages
  • Iceman - Preservation - 2915 Words
    1. Explain why the iceman was so well preserved? ( source one) It is said that a frozen body will stay preserved over hundreds, even thousand of years. During the first stage of investigations Austrian archaeologist Konrad Spindler researched the layout which had proved that the iceman's body position and placement of weapons were preserved in the same position from when the Iceman had died, it had also been proved that the body was initially covered in a thin layer of snow which had...
    2,915 Words | 9 Pages
  • Chemistry 1 - 1652 Words
    Centre Number Surname Other Names Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2012 1 2 3 4 5 TOTAL Science B Unit Chemistry C1 CHY1H Chemistry Written Paper Unit Chemistry C1 H Thursday 26 January 2012 You will need no other materials. You may use a calculator. 9.00 am to 9.45 am Time allowed  45 minutes Instructions  Use black ink or...
    1,652 Words | 10 Pages
  • Energypac Engineers Ltd - 3994 Words
    Electroplating shop: Electroplating is primarily used for depositing a layer of material to bestow a desired property to a surface that otherwise lacks that property. Mainly electroplating is used for the following purposes: * Abrasion * Wear resistance * Corrosion protection * lubricity and * Aesthetic qualities The electroplating shop of Energypac Engineering Limited consists of three sections. i) Seven color section ii) Nickel section iii) Silver section Seven color...
    3,994 Words | 17 Pages
  • Histoy of Metallurgy - 140 Words
    Sazia Ali Ms. Cavan Holliday A.P.U.S.H 18th September, 2014 The History of Metallurgy Metallurgy is a noun which means: a) the technique or science of working or heating metals so as to give them certain desired shapes or properties b) the technique or science of making and compounding alloys and c) the technique or science of separating metals from their ores. This word originated from Modern Latin metallurgia, from the Greek word metallourgos “worker in metal.” Gold was the earliest metal...
    140 Words | 1 Page
  • Determination of a Chemical Formula - 1274 Words
    CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another, the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more elements are present in a compound, the formula still indicates the atom ratio. To find the formula of a compound we need to find the mass of each of the elements in a weighed sample of that compound. For example,...
    1,274 Words | 4 Pages
  • Improvised Buzzer - 278 Words
    Improvised Buzzer I. Materials * Wood * Block of wood * Ballpen or any stick (needed: just the body of the ballpen) * Nail * Screw * Metal bowl * Metal * Copper wire * Masking tape * Switch * Socket II. Procedure 1. Prepare the materials needed for the making of the improvised buzzer. 2. Cut a piece of wood enough for the project. 3. Get the body of the ballpen and cut a 2 inch part of it. 4. Hammer...
    278 Words | 2 Pages
  • Chemistry Paper - 2174 Words
    Copper toxicity From Wikipedia, the free encyclopedia Jump to: navigation, search Copper toxicity | Classification and external resources | A Kayser-Fleischer ring, copper deposits found in the cornea, is an indication the body is not metabolizing copper properly. | ICD-10 | T56.4 | ICD-9 | 985.8 | MedlinePlus | 002496 | Copper toxicity refers to the consequences of an excess of copper in the body. Copper toxicity can occur from eating acid foods cooked in uncoated copper...
    2,174 Words | 8 Pages
  • Chemistry Lab - 1048 Words
    Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this, the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the...
    1,048 Words | 5 Pages
  • Potato Battery - 797 Words
    Science Research Paper: “Potato Battery” I. Problem a. Main Problem This study aims to prove whether fruits and vegetables are good reserves of electricity. The potato, known for its high Phosphoric Acid and Sulfuric Acid, has been as our chosen fruit to prove and conduct our answers upon the accessibility of fruits and vegetables as an effective renewable energy source. b. Sub-Problems To further provide extra and specific information, the researchers have decided to add the...
    797 Words | 4 Pages
  • Electroplating - 1499 Words
    ------------------------------------------------- Electroplating Electroplating is a plating process in which metal ions in a solution are moved by an electric field to coat an electrode. The process uses electrical current to reduce cations of a desired material from a solution and coat a conductive object with a thin layer of the material, such as a metal. Electroplating is primarily used for depositing a layer of material to bestow a desired property (e.g., abrasion and wear...
    1,499 Words | 5 Pages
  • Metallic Minerals - 1755 Words
    MATALLIC MENIRALS ROLL NO: 07 Metallic Minerals On an auspicious day, sometime around a million years ago, a member of the Homo habilis species stood erect and walked steadily on his two feet and his two hands became totally free. A new species – Homo erectus—began its journey on a new evolutionary track. This great change took around four million years after his ancestors – the hominids — broke free from the lineage of apes and chimpanzees. But , perhaps for the next seven to eight...
    1,755 Words | 5 Pages
  • chalcophyrite - 803 Words
    Did you know... Chalcopyrite was the mineral upon which Bronze Age civilizations were built. Within the last century, it also became the mineral foundation for our modern electrical age. Our primary source of copper, chalcopyrite’s name comes from the Greek words ‘chalkos’ and ‘pyrites’, which respectively mean ‘copper’ and ‘striking fire’. With its metallic luster and bright golden color, chalcopyrite can fool people into thinking it is gold. It is one of two minerals, the other being pyrite,...
    803 Words | 3 Pages
  • Lepanto - 1815 Words
    COMPANY OVERVIEW | | | Lepanto Consolidated Mining Company was established in 1936. 2011 marks the company’s 75th year in the business. Lepanto is a Filipino primary gold producer. The Lepanto mines are located in Mankayan, Benguet where the Company has about a thousand employees. From 1948 to 1996, Lepanto's Enargite operations produced 1.58 billion pounds of copper, 2.9 million ounces of gold and 12.0 million ounces of silver, recovered from 34.4 million MT of ore averaging...
    1,815 Words | 7 Pages
  • Displacement Reaction - 414 Words
    DISPLACEMENT REACTION AIM Investigate the displacement reaction between Zinc Metal and Copper Sulphate. INTRODUCTION The displacement reaction involves the reaction between an element and a compound where the element takes the place of or displaces another element from the compound. The element higher in the reactivity series will replace the element lower in the reactivity series. APPARATUS AND MATERIALS * Powdered zinc metal * 1.0 mol dm-3 copper (II) sulphate...
    414 Words | 3 Pages
  • Are We Running Out of Resources?
    Running out of resources has been one of the most influential claims of the early environmental movements, and a claim that provided the background for many of the environmental movements such as; recycling, the argument that small-is-beautiful and the excuse for the need to restructure society away from its obsession of consumption and production. The idea of the world losing its resources at an accelerated rate because of humans, has been very influential over the past 30 years. This movement...
    1,459 Words | 4 Pages
  • Unit 15 Assignment 2 M3
    Unit 15: Major Incidents Assignment 2 (M3) M3 – explain how UK agencies work together while following their legal duties After a major incident has happened it is important that responding agencies communicate and work together to that they can resolve the incident quickly and efficiently this is done in the following ways. Training days: these are organized training days where public services will simulate a major incident which allows the services to train and prepare for real major incidents...
    522 Words | 2 Pages
  • Materials: Metals and Non Metals
    MATERIALS : METALS AND NON-METALS Y Iron Coal ou are familiar with a number of materials like iron, aluminium, copper, etc. Some materials have been given in Table 4.1. Table 4.1 : Appearance and Hardness of materials Object /Material Appearance Hardness (Shiny/Dull) (Very hard/ Not very hard) similar change if we try to beat a wood log ? Let us find out. Activity 4.1 Take a small iron nail, a coal piece, a piece of thick aluminium wire and a pencil lead. Beat the iron nail...
    3,631 Words | 13 Pages

All Copper Essays

Proyecto Rampage 3D BluRay 3D 1080p | Watch Movie | The Bletchley Circle 2012 8.0