WHAT IS CHEMISTRY? simple definitions of chemistry: Chemistry is the branch of science that deals with the properties,composition,strucutre of elements & compounds and how can they change and the energy that is released or absorbed when they change. Chemistry is the study of matter; its composition,properties,transformation from one form to another and the energy that accompanies its transformation. There are five major branches of chemistry: Organic Chemistry Inorganic Chemistry Analytical Chemistry Physical Chemistry Biochemistry Organic Chemistry Organic Chemistry is the study of the structure,properties,composition,reactions and preperation of carbon containing compounds. Inorganic Chemistry Inorganic Chemistry deals with synthesis and behavior of inorganic and organometalic compounds.This field covers chemical compounds that aren't carbon based. Analytical Chemistry Analytical Chemistry is the science of obtaining,processing and communicating information about the