Which statement is correct about the rate of chemical reactions? (5 points) It increases when the temperature decreases. It increases when a catalyst is added. It does not depend on the temperature. It does not depend on the presence of catalysts.

It increases when the temperature increases.

Explanation:

The speed of most chemical reactions increase as if the temperature of those same reactions increase as well. This is because a higher temperature allows for reactants to gain the necessary activation energy needed to react.

Enzymes are another reason. Enzymes are catalysts in reactions which reduce the activation energy needed for a reaction to occur and enzymes work best in certain higher temperatures - not too high - so this also leads to the reaction speed increasing due to temperature increases.

it increases when the temp. decreases

Explanation:

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.