A scientist carries out a reaction twice. In Trial A, the scientist combines the reactants in a container. In Trial B, the scien
tist combines the reactants in the same container, but she also adds a catalyst. If everything else is the same about the two trials, what is most likely true about Trial B?
It will have a lower activation energy than Trial A.
Explanation:
Trail B will have a lower activation energy than trail A because in this trial the scientist adds a catalyst. Catalysts slow down reaction rates which will in turn mean a lower activation.