After noticing changes in your vision, you take a trip to the eye doctor. she tells you that, to improve your vision, she needs to perform surgery to slightly flatten the cornea. what is wrong with your eyes?

the retina is not functioning correctly.

they are farsighted.

they cannot see objects clearly up close.

they are nearsighted.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

they dont have any evidence