Q: What happens to the reaction rate over the course of a reaction?


Read this paragraph and choose the correct option from the provided answers:

At the beginning of the reaction, only the reactants A and B are present. Recall that over the course of a reaction, the reaction rate slows down. This is because the rate depends on the concentrations of one or more reactants. As the reactants are used up, their concentrations drop, thus decreasing the reaction rate.

 Choices:

- reverses

- stays the same

- speeds up

- slows down


A:
slows down