Question

Decreasing the particle size of the reactants in a chemical reaction will increase the rate of reaction by

A)
increasing the concentration of the reactants.

B)
increasing the surface area of the reactants.

C)
increasing the activation energy.

D)
increasing the temperature.

Answer 1

https://www.alkaseltzer.com/science-experiments/particle-size/

Answer 2

^read and you'll find your answer.