Chemical reaction investigation

Where did the bubbles come from in cups 1 & 3?  What was the solid that formed in cup 1?

Wrap Up Questions

1.  What happened to the bag?
2.  What made the bag puff up like a pillow?
3.  Where did the gas come from?
4.  What did you find out by doing the reaction in a bag that you couldn't find out doing the reaction in a cup?
5.  How much gas formed as a result of the reaction?
6.  How does the volume of gas compare to the volume of substances you put into the bag?
7.  How did the reaction differ between the 2 bagged experiment?
8.  Which reaction produced more gas?
9.  What happened when we put all 3 reactants in the bag and added water?

Vocabulary
Reactant
Product
Reaction

Write a conclusion for the lab...
Explain the lab
Restate the problem and your hypothesis
Was your hypothesis support/not supported
What did you learn

Fizzing Bags

What differences and similarities did you observe between the reaction of calcium chloride/baking soda and citric acid/baking soda?