Question

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which component is affected when a catalyst is added to a chemical reaction? the activation energy the amount of substrate the amount of product the concentration of reactants

Explanation:

A catalyst speeds up a chemical reaction by lowering the activation energy required for the reaction to occur. It does not change the amount of substrate, product, or the concentration of reactants at equilibrium. So the component affected by adding a catalyst is the activation energy.

Answer:

the activation energy