Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds. Most organic compounds contain carbon and hydrogen, but they may ...

Learn about how an organic chemical contains the element ... Energy changes in chemistry Learn about chemical reactions and how energy is transferred to or from the surroundings.

Some chemical reactions are reversible, and may reverse even as they react. This can create a state of dynamic equilibrium. Organic chemistry - (CCEA) An organic chemical contains the element carbon.