Question

f you could measure the mass of the substances inside the cup in Part I before and after the reaction, you would see that the mass decreased over the course of the reaction. Based on your observations in Part I and II, explain this difference in mass for the unsealed cup.




What caused the bubbles in the reaction?




If you were to measure the mass before and after the reaction in Part II, you would see that mass was conserved. Explain why the Law of Conservation of Mass seemed to be obeyed in Part II but not in Part I.

Answer 1

http://safeshare.tv/w/KzBySTmJFG part 1

Answer 2

http://safeshare.tv/w/iLLbOGuszl part 2

Answer 3

@priyar

Answer 4

@JFraser

Answer 5

@Jen543