AH HELP IM TIMEd WILL BRAINLIEST

Calcium chloride +gold(1) oxide—>

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.