Department of Chemistry
Physical and Chemical Properties
Date Submitted: 2/2/2014
Date Performed: 1
To identify chemical and physical change in matter.
Finding out the physical and chemical change in matter. There was seven different substances that were being tested; Mossy Zinc (Zn), Magnesium (Mn), Copper (Cu), Magnesium Oxide (MgO), Copper II Nitrate (Cu(NO3)2), Copper II Carbonate (CuCO3) and Sodium Chloride (NaCl). There were four test tubes set up for the experiment. Each substance was divided amongst the four test tubes. The first test tube was being observed at its natural state and then it was held over a Bunsen burner to a boil and observed when it was heated up. The second test tube, which already had the substance being tested, was then added with a little cold water. I recorded my observation in the chart below. Test tube two was then held over the flame and waited for a physical and chemical change. With a glass stirring rod the substance in test tube two was cooled off and mixed around and placed on a piece of red and blue litmus paper. I waited a minute to see if there was any change to the litmus paper and then recorded my results. Test tube three was mixed with the compound and Hydrochloric acid. Most of the substances that were being tested had a physical or chemical change with the HCI. Lastly, test tube four which contained a new piece of a substance was mixed with Sodium Hydrochloric Acid. After each compound the test tubes were cleaned thoroughly and set up for the next substance that was being tested. This was repeated seven times.
OBSERVATION AND RESULTS:
Smells like burnt medal
Smells like burnt medal and lots of bubbles
The test tube became extremely Hot and bubbly...
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