how does a catalyst influence a chemical reaction? it speeds up or slows down a chemical reaction by direct…

how does a catalyst influence a chemical reaction? it speeds up or slows down a chemical reaction by direct participation. it reacts with products to increase the concentration of reactants. it decreases the amount of energy necessary for the reaction to proceed. it increases the total amount of products formed.
Answer
Brief Explanations:
A catalyst speeds up a chemical - reaction by lowering the activation energy without being consumed in the reaction. It doesn't directly participate in the reaction in the sense of being part of the products or reactants in the long - term. It doesn't react with products to increase reactant concentration, doesn't increase the energy needed for the reaction, and doesn't increase the total amount of products formed (the amount of products is determined by stoichiometry and limiting reactants).
Answer:
None of the above options are correct. A catalyst speeds up a chemical reaction by lowering the activation energy without being consumed in the reaction.