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When a catalyst is involved in the collision between the reactant molecules, less energy is required for the chemical change to take place, and hence more collisions have sufficient energy for reaction to occur. The reaction rate therefore increases.Collision theory is closely related to chemical kinetics.hen a catalyst is involved in the collision between the reactant molecules, less energy is required for the chemical change to take place, and hence more collisions have sufficient energy for reaction to occur. The reaction rate therefore increases. Collision theory is closely related to chemical kinetics.
The change in energy for a chemical reaction has to do with the potential energy of the electrons. The change in energy for a nuclear reaction has to do with the potential energy of the nucleus.owever, we can still balance a nuclear reaction. To balance a nuclear reaction, we need to make sure that both sides of the reaction have the same charge and the same mass number. The mass number is simply the total number of protons and neutrons (taking each as mass number 1).