which-of-the-following-best-defines-a-catalyst-in-a-chemical-reaction

Question

Which of the following best defines a catalyst in a chemical reaction?

Accepted Answer

A substance that increases the rate of a reaction without being consumed.

Answer

A substance that increases the rate of a reaction by being consumed.

Answer

A reactant that undergoes a permanent chemical change.

Answer

A product that forms during the reaction process.