What is the Difference Between Similar But Different Things, Terms, and Objects

What is the Difference between Exergonic, Exothermic and Endothermic Reactions

Scientist has divided the science into different classes to understand them in a better way and to do a thorough study of each and every part of science individually. Chemistry is the science of elements and their specific characteristics. It deals with the chemical reaction that takes place between them. The elements have been divided into different groups according to their characteristics and chemical behavior.