Does adding a catalyst to a rxn mixture add energy that causes the rxn to proceed more quickly.
I answered: No, a catalyst simply lowers the activation energy by providing an alternate route to the desired product allowing the rxn to speed up.
Does that make sense? Anything I should chnage or add?
That is correct.
I think the answer is sufficient.
Your answer is accurate and clear. However, I would suggest adding a brief explanation of what activation energy is, as it is a key concept in understanding how a catalyst functions. Here's a revised version of your answer:
"No, adding a catalyst to a reaction mixture does not add energy that causes the reaction to proceed more quickly. Instead, a catalyst functions by lowering the activation energy required for the reaction to occur. Activation energy is the minimum amount of energy needed for a reaction to start and proceed. By providing an alternate pathway with a lower activation energy, the catalyst enables the reaction to occur more quickly. It does not affect the overall energy change of the reaction or the equilibrium position. Thus, a catalyst simply facilitates the reaction without being consumed or altered by the process."