GIVING 25 POINTS! Copernicus introduced a new hypothesis for the movement of the solar system, which stated that the sun was the center of the solar system. This hypothesis was called the . A. heliocentric theory
B. geocentric theory
C. transparent theory
D. concentric theory

the sunflower because each experiment got the same results

hope this !

-payshence

cuz he's blad

explanation:

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.