catalysts increase the rate of a reaction by\na being consumed during the reaction.\nb raising the…
catalysts increase the rate of a reaction by\na being consumed during the reaction.\nb raising the temperature of the reaction.\nc raising the concentration of the reactants.\nd lowering the activation energy of a reaction.
Answer
Brief Explanations:
Catalysts are substances that speed - up chemical reactions without being consumed. They work by providing an alternative reaction pathway with a lower activation energy. Raising temperature (B) and reactant concentration (C) are other ways to increase reaction rate but not how catalysts work. Catalysts are not consumed during the reaction (A is false).
Answer:
D. lowering the activation energy of a reaction