What is the main focus of chemical change graphs?

Chemical Reactions and Energy Changes

Interactive Video
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Chemistry, Biology, Science
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9th - 10th Grade
•
Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Physical changes in matter
Chemical reactions and energy changes
The structure of atoms
The periodic table
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process in plants is an example of an endothermic reaction?
Fermentation
Photosynthesis
Cellular respiration
Combustion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of reaction is cellular respiration?
Neutral
Endothermic
Exothermic
Reversible
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an endothermic reaction graph, what does a positive slope indicate?
Energy is being released
Energy is constant
Energy is being absorbed
No energy change
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is activation energy?
The energy at the end of a reaction
The energy released during a reaction
The energy required to start a reaction
The energy that remains constant
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the law of conservation of energy apply to exothermic reactions?
Energy is not involved
Energy is transferred equally
Energy is destroyed
Energy is created
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an exothermic reaction graph, what does a negative slope indicate?
Energy is being absorbed
Energy is being released
No energy change
Energy is constant
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