Reactions Flashcards
1
Q
Why is sulfuric acid not suitable in a reaction with marble chips?
A
-Insoluble calcium sulfate is formed
-Which forms a layer around the marble chips
-Preventing the reaction from occuring
2
Q
When breaking down lead oxide why is hydrogen passed through the tube?
A
-To stop the hot lead from reaction with oxygen forming lead oxide again.
3
Q
What is the purpose of a catalyst?
A
-Increases the rate of reaction but is chemically unchanged by the end of reaction
4
Q
How does a catalyst work?
A
-Provides an alternate pathway with lower activation energy
5
Q
A
