View archive. The Selma Fire Department was established in 1974, âto protect and enhance the quality of life in Selma through a program of services directed toward public education, prevention, and control in areas of fire, rescue, medical, emergencies, hazardous materials incidents, and disasters.â.
2016-09-05T14:42:37-04:00. Collision theory is the topic among the choices given in the question that is used to explain activation energy and how chemical reactions happen. The correct option among all the options that are given in the question is the second option or option B. I hope that the answer has come to your help.
Activation energy: a chemical reaction is the difference between the energy of the activated complex and the energy of the reactants. Catalyst: substance that increases the rate of a chemical reaction by reducing the activation energy, but which is left unchanged by the reaction. Entropy: The measure of the disorder of a system, usually denoted by the letter S.