How does a catalyst work to make a reaction go more quickly? O A. It decreases the number of collisions.
O B. It raises the temperature of the reaction.
O c. It brings reactant molecules together.
O D. It increases the concentrations of the reactants.

c. It brings reactant molecules together.

Explanation:

Catalysts in chemical reactions works by bringing reactant molecules together thereby making the reaction proceed much faster.

A catalyst is any substance that speeds up the rate of chemical reactions. Sometimes, the activation energy of reactions are very great. This makes chemical reactions very difficult to proceed.

When a catalyst is introduced, they take the reactants and bring them close enough. This way, the activation barrier is lowered and the reaction can proceed.

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid