How do catalysts function in a reaction?

A) By speeding up the collisions of particles
B) By lowering the activation energy of the reaction
C) By combining with the products
D) None of the above

Activation Energy

The lowest level of energy required by reactants to partake in a particular chemical process.

Catalysts Function

The role performed by substances that speed up chemical reactions without themselves being consumed or altered permanently.

Collisions

Events where two or more bodies exert forces on each other for a relatively short time, often changing their motion due to the impact.