Which of the following will increase the number of collisions without changing the energy of reactant molecules?

decreasing the concentration of products

increasing the concentration of reactants> i chose this one

increasing the temperature of the reactant mixture

decreasing the pressure of the reactant mixture

increasing the concentration of reactants

Explanation:

Collision is the phenomenon in which the reactant molecules come to nearest closness,as a result the reactants are converted into products.

Now the number of effective collision is directly proportional to the number of reactants added..

i think 4.44 moles

there is none because earth is stationary and flat.