which statement best describes how a catalyst can speed up a chemical reaction?\nthe catalyst decreases the…

which statement best describes how a catalyst can speed up a chemical reaction?\nthe catalyst decreases the activation energy needed.\nthe catalyst increases the concentration of products.\nthe catalyst binds to enzymes to release substrates.\nthe catalyst increases the concentration of reactants.

which statement best describes how a catalyst can speed up a chemical reaction?\nthe catalyst decreases the activation energy needed.\nthe catalyst increases the concentration of products.\nthe catalyst binds to enzymes to release substrates.\nthe catalyst increases the concentration of reactants.

Answer

Brief Explanations:

A catalyst lowers the activation - energy barrier for a chemical reaction, allowing it to occur more readily and thus speeding up the reaction. It does not change the concentration of products or reactants directly, nor does it bind to enzymes to release substrates in the context of speeding up a general chemical reaction.

Answer:

The catalyst decreases the activation energy needed.