Tuesday, September 27, 2011

Chemistry in a bag


Chemistry in a bag

Water- clear. liquid


Calcium Chloride- pebble like. Hard


Sodium Bicarbonate- write. powerder


Phenol Red- liquid. stain. red. low vascosity




We mixed one pipite of water with one pipite of phenol red on one side of the bag


then on the other we mixed one table spoon of calcium with sodium bicarbonate.




WARNING: phenol red will stain. Calcium chloride will burn.




As we became to shake the the red mixture from the bottom of the bag. Fizzing and thickening,


it started to turn yellow. While the pressure was building inside the bag, the powdered desolved and it became warm. The fluilds started to exaporate and feel cold. When it was as full as it was going to get, we opened up the bag and waffed it. Smelt like a sharpie.
Phenol Red+ Baking Soda-turned pink. smelt like sharpie
Phenol Red+ Calcium- heat, red, smelt like sharpie
Calcium Chloride+ Baking Soda- noting happened
Calcium Chloride+ Water- heated, cloudy liquid
Baking Soda+ Water- fizzing, cloudy water
1-calcium chloride
2- experiments without the calcium chloride did not heat up
3- orange and yellow. no
4-no. they happened at different times
5- baking soda and calcium chloride together. nothing different happens without water
6- the gas built up inside the bag. baking soda
7- don't mix it with liquids
8- doesn't allows occur. we mixed certian substances together and the had a chemical reaction without heat


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