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1
Q:

Which is the best definition of activation energy?

A) the energy required to break the bonds of reactant molecules B) the energy required to end a chemical reaction
C) the energy required to bind a substrate to an active site D) the energy required to re-form bonds in product molecules

Answer:   A) the energy required to break the bonds of reactant molecules



Explanation:

Activation energy is a minimum amount of energy that required for the chemical reaction to happen or to take place.

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