Question

Which statement about reaction rates is true?

Changing the surface area affects the reaction rate.

Changing the amount of reactants will not change the reaction rate.

Changing the temperature cannot speed up a reaction rate.

A catalyst slows down the reaction rate.

Answer 1

Changing the surface area affects the reaction rate.

Step-by-step explanation:

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Answer 2

Changing the surface area affects the reaction rate.

Explanation:

More particles are exposed to attack when the surface of a solid reactor increases. This increases the likelihood of collisions between reacting particles and causes a higher collision rate at any given time.

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