Respuesta :
Answer;
Catalysts are chemically unchanged at the end of a reaction.
Explanation;
- A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy without itself being consumed by the reaction.
- Activation energy is the minimum amount of energy required for a chemical reaction to proceed in the forward direction.
- Catalysts are unchanged at the end of the reactions in which they participate.
- An enzyme is considered a catalyst because it speeds up chemical reactions without being used up. An enzyme lowers the temperature at which a reaction proceeds.
