Chemistry And Matter

Topics: Water, Atom, Chemistry Pages: 4 (1123 words) Published: February 22, 2015


Chemistry and Matter
Rich McConnell, CH-201
Grantham University
Chemistry and Matter
1. A scientist who is trying to make an insecticide that is more toxic to mosquitoes than to humans would be involved in ________. 1. Basic research
2. Applied research
3. Technology
4. Serendipity
2. How is chemistry defined? Science can be looked at like at tree, within this tree there are different branches one of which is Chemistry which studies composition and properties of matter and the changes they go through. Chemistry collects facts and body of knowledge, but it is more about the matter, which is anything that occupies space and contains mass. 3. For each of the following activities, list the hazards involved and the ways in which exposure could occur.  Then, decide if the benefit of the activity outweighs the risk.  Propose ways in which the overall risk might be lessened.

1. Installing a smoke detector that uses a radioactive capsule to detect particles in the air. In 2006 it was estimated that more than 80% of the standard smoke detectors in the US had americium-241, a radioactive element with a life span of 432 years. Is this enough to cause concern? Having one or two smoke detectors that contain a radioactive capsule is nothing to be concern about. However, if one was smart enough and willing to invest the time, as Mr. David Hahn, an Eagle Scout, did in 1994 to earn a merit badge in atomic energy, when he built a homemade reactor. Using nothing but smoke detectors, antiques and some surplus lanterns we would have us a serious problems. Using small amounts to save lives outweighs the risks. I mean really how many people actually sit there and think about making a reactor. Well in today’s time, maybe more than some.

2. Eating food that has been treated with radiation to kill harmful bacteria. Is Gamma radiation really that harmful? Depends on how you look at it and how scared you are of life. Heck breathing our own air, to me...
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