For a reaction to take place, the molecules that are reacting

Question

Quizplus · Accepted Answer

For a chemical reaction to take place, the reacting molecules must collide with each other. However, not all collisions lead to a chemical reaction. The reacting molecules must have enough energy to overcome the activation energy barrier so that they can form new chemical bonds and create the products of the reaction. Therefore, choice C is correct as the reacting molecules must be able to reach the activation energy.

Choices A and B are incorrect as the energy of the reacting molecules is not necessarily related to the energy of the products.

Choice D is incorrect as the number of molecules present does not necessarily determine if a reaction will occur. It is the collision frequency that is important, not the total number of molecules.

For a Reaction to Take Place, the Molecules That Are