Chemical Reactions
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by Donald LaMarr
| 7 Questions
1
1 pt
What can you change when balancing a chemical equation?
Subscript
Coefficient
Elements
Catalyst
2
1 pt
What is an example of an exothermic reaction?
A lightbulb
The sun
A firecracker
Vinegar and baking soda
3
1 pt
Endothermic reactions release energy stored in chemical bonds.
True
False
4
2 pts
Balance the chemical equation.
5
4 pts
Balance the chemical equation.
6
1 pt
A balanced equation demonstrates...
The law of conservation of energy
There was an exothermic reaction
Energy has neither been created or destroyed
There is the same amount of atoms on both side of the equation
The law of conservation of mass
7
2 pts
State one way that you could speed up the rate of a chemical reaction.
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