Respuesta :

a catalyst speeds up a reaction and is not used up, whereas a reactant is used up as it is actually part of the chemical reaction. A catalyst lowers the activation energy
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Answer:

Catalysts are chemical compounds that increase the rate of a reaction by lowering the activation energy required to reach the transition state. Unlike reactants, a catalyst is not consumed as part of the reaction process. The process of speeding up a reaction by using a catalyst is known as catalysis.

Explanation:

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