How will the addition of a catalyst affect the reaction rate of the chemical reaction?

It will cause the reaction rate to decrease.

It will not affect the reaction rate.

It will cause the reaction rate to increase.

It will cause the reaction rate to double.

It will cause the reaction rate to increase.

The correct answer is "It will cause the reaction rate to increase".

Explanation:

A catalyst is defined as a molecule that increases the rate of a reaction without suffering any structural or functional alteration resulted from the reaction. The most common catalysts are called enzymes, which perform hundreds of different chemical and biological reactions. Depending on the reaction, an enzyme can increase the reaction rate up to 100 million times.