mp4p1+Group+3

Danielle, Taylor, and Brian
We all like playing sports, and we all have a brother.

__April 6th, 2011 Mixtures__ We have test tubes, test tube rack, graduated cylinder, lap scoop, Zinc oxide, and copper sulfate.

[] Copper sulfate is harmful, irritant, and can be danergous with the enviroment.

[] Zinc oxide is in plastics, paints, ceramics, glasses Zinc oxide can be harmful depending on what it is mixed with.

10 Ml for each test tube.

__Lab April 6th 2011__ We are going to use 10 mL of water for each test tube. 2 test tubes with water in it the other two will just chemicals in it, and see if they dissolve.

__ April 7th 2011 __ After we did our experiment the copper sulffate dissolved at the bottom of the test tube, the bottom of the test tube lookes blue, so its less dense. Then when we did the Zinc oxide its more dense because it was moving around in the test tube. When you mix the the Zinc oxide it got all cloudy and that was called suspension. When you look through the test tube its transparent, but the copper sulfate is more transparent because you can see through it a lot better then the Zinc oxide.

__ April 12th, 2011 __
Today we did an experiment to determain if the amount of water effects the amount of Kool-Aid we had into a test tube.

What is the difference between an element and a compound?
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This graph above explains what substance we used for our lab experiment.

__﻿April 26th, 2011__
Calcium Chloride(CaCl 2 ) []
 * Ionic compound
 * used on roads to control ice and dust

Sodium bicarbonate(NaHCO 3 ) *a white solid that is crystaline but often appears like a fine powder []
 * causes serious eye irritation

Bromothymol Blue(C 27 H 28 Br 2 O 5 ) []
 * weak acid in a solution
 * used for observing photosynthetic activities
 * Below pH is yellow and above pH is blue

Water (H 2 O) Using these chemicals above, we are going to form an expeiment to determine combinations of the coumpounds that react chemically.

May 13th, 2011
We did an experiment to see if adding alka seltzer to water, if the mass of the reactants and porducts would change. It turns out that the mass never changed!!!! __Summary__ In the end we had no change in the mass of the products our reactants. We did three trials. After these three trials we realized that there was no change when we added the alka seltzer!