Friday, July 8, 2011

Activity #3

Questions/Activities:
1. Post a picture of three 3-dimensional Ball and Stick molecular models(choose your three favorite molecules) that you have created with common items around your home. Also post a molecular structure image(image from the web, of either a Kekule Structure or a Ball and Stick Model) and the IUPAC name of the molecule. 

 THIAMINE
 

 ETHANOL


                              



METHANE








2. Post an image from the web, the chemical systematic (IUPAC) name, common name, and the molecule formula for 20 chemicals that you use or eat. Explore the ingredients of things like cosmetics and foods.
Graphite=pencils
Lithium is in batteries
phosphorus and sulfer-Matches
acetic acid is in foods like vinegar

copper-pennies and coins

oxygen

aluminum-cans

iron-foods like meat and vegetables

butanoic acid

     ascorbic acid-vitamind C

carbon crystal-jewels and stones

calcium carbonate

magnesium sulfate


fructose-foods and drinks


polyethylene

hydrolyzed starch

   cirtric acid-juices like orange juice

oxidane 

3. Look over your molecules and the bonding characteristics, how many bonds does each of the following elements typically have?  Carbon? Hydrogen? Oxygen?
Carbon: 4
Hydrogen: 1
Oxygen: 2

4. What does IUPAC stand for?
International Union of Pure and Applied Chemistry

5. As you explore ingredients, notice how everything around us is made up of chemicals consisting of atoms bound together into molecules.  But what about companies that claim their products are chemical free! How can this be?  Here is an example: 
http://www.naturalhealthcareproducts.com/Cleaning-Products.php
Do a little web searching and propose what chemicals are actually in this product.

There are products like Lysol and Clorox that use harsh chemicals like bleach and amonia to kill germs and bacteria, and companies like those are starting to come out with "chemical free" or "safe" products. using less-harsh chemicals in your products do make them safer to use around children or food, but there can never be a "chemical free" product. All cleaning products will have some sort of chemical in them to kill the germs, but it just might not be as harsh as bleach.

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