Chemical reactions move at different speeds. when a chemical reaction is moving at a slow speed, what can be done to speed up the reaction.

Option (1).

Explanation:

Enzymes may be defined as the bio catalyst that has the ability to increase the rate of a biochemical reaction occur in the living organism. The enzymes works at specific pH and temperature conditions only.

The enzymes are added to increase the rate of the reaction.Enzymes decreases the activation energy of the reaction by increasing the effective collision between the substrate.

Thus, the correct answer is option (1).

[content deleted] - user123802726recklesschicken

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus