4
practice testMultiple Choice

Practice Test

Question 4 • Physical Science

If a chemical reaction does not reach its activation energy, which will most likely occur?

Answer
A
The chemical bonds will break.
B
The chemical bonds will have high kinetic energy.
C
The chemical bonds will already be broken.
D
The chemical bonds will remain unchanged.

Explanation

Activation energy is the minimum energy needed to start a chemical reaction by overcoming the barrier to rearranging bonds. If the reaction does not reach that energy, the reaction is unlikely to occur, so the chemical bonds remain unchanged. The bonds will not break just because the reaction was attempted.

AI-written and checked against the verified answer.

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