Which change will most likely increase the rate of a chemical reaction?

We can increase the rate of reaction by:

1. Increase the temperature. Increasing the temperature increases the movement of the molecules interaction between each other.

2. Increase the activation energy. There are some reactions that proceeds slowly and in order for the reaction to proceed fast, they will add an enzyme. An enzyme hastens the chemical reaction and thus increases its activation energy.

3. Increase the stirring of the mixture. By increasing the stirring of the mixture, you are allowing more interaction between molecules.

4. Pulverizing the substances. Pulverizing the substances and then mix them allows more surface area for the interaction to occur.