Quiz: Endothermic and Exothermic Rxns
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by Keri Owen
| 20 Questions
Note from the author:
Endothermic reactions and exothermic reaction
1
1 pt
Chemical reactions don't need energy to break apart bonds.
True
False
2
1 pt
In a chemical reactions new bonds form to make the products.
True
False
3
1 pt
Energy cannot be created nor destroyed.
True
False
For the following questions choose whether or not the desription goes with endothermic reactions (A) or exothermic reactions (B).
4
1 pt
More energy is released by products than is needed to break bonds.
A Endothermic
B Exothermic
5
1 pt
Products have less energy than the reactants.
A Endothermic
B Exothermic
6
1 pt
It literally means "taking in heat."
A Endothermic
B Exothermic
7
1 pt
Energy is needed to keep the reaction going.
A Endothermic
B Exothermic
8
1 pt
Reactions feel hot to us.
A Endothermic
B Exothermic
9
1 pt
An example is baking soda and vinegar.
A Endothermic
B Exothermic
10
1 pt
Reaction feels cold.
A Endothermic
B Exothermic
11
1 pt
Wood burning is an example.
A Endothermic
B Exothermic
12
1 pt
Products have more energy than the reactants.
A Endothermic
B Exothermic
13
1 pt
Heat is absorbed.
A Endothermic
B Exothermic
14
1 pt
Photosynthesis is an example.
A Endothermic
B Exothermic
15
1 pt
Combustion reactions are examples.
A Endothermic
B Exothermic
16
1 pt
This equation: Reactants→Products+Energy
A Endothermic
B Exothermic
17
1 pt
Is the graph above respresentative of an endothermic or exothermic reaction?
A Endothermic
B Exothermic
18
1 pt
From where does the energy for photosynthesis come?
lighting a match
the rain
the sun
19
1 pt
During the photosynthesis reaction plants convert carbon dioxide and water to
glucose and carbon monoxide
glucose and oxygen
oxygen and water
oxygen and energy
20
1 pt
The energy needed to start reactions is called
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