Chemistry is a fascinating subject.

The chemical reaction has occurred successfully.

The chemical equation balances the number of atoms in a chemical reaction.

Wood paste is used for paper production.

The chemical reaction occurs when two substances combine to form a new one.

I am studying organic chemistry at the university.

Analytical chemistry is an important branch of chemical science.

Inorganic chemistry studies chemical compounds that do not contain carbon-hydrogen bonds.

Theoretical chemistry studies the principles and theoretical models of chemistry.

Environmental chemistry studies the effects of chemicals on the environment.