Which term is described as a substance that speeds up the rate of a chemical reaction?

Which term is described as a substance that speeds up the rate of a chemical reaction?

• A. Catalyst
• B. Luting Agent
• C. Provisional
• D. Centric

Answer: (A)

The main concept is that a substance that speeds up a chemical reaction is called a catalyst. A catalyst works by providing an alternative pathway for the reaction with a lower activation energy, so more molecules have enough energy to react at the same temperature. It isn’t consumed during the reaction, which means it can keep catalyzing additional reactions. Enzymes in the body and many industrial processes use catalysts to make reactions go faster. The other terms don’t describe something that speeds up reactions: a luting agent is used to bond dental materials, a provisional is a temporary crown, and centric relates to center or alignment rather than chemistry.

The main concept is that a substance that speeds up a chemical reaction is called a catalyst. A catalyst works by providing an alternative pathway for the reaction with a lower activation energy, so more molecules have enough energy to react at the same temperature. It isn’t consumed during the reaction, which means it can keep catalyzing additional reactions. Enzymes in the body and many industrial processes use catalysts to make reactions go faster.

The other terms don’t describe something that speeds up reactions: a luting agent is used to bond dental materials, a provisional is a temporary crown, and centric relates to center or alignment rather than chemistry.