I love organic chemistry classes.

He is dedicated to the study of immunochemistry.

Thermochemistry is a part of chemistry that deals with the reactions of heat and matter.

Chemical pollution has a serious impact on the health of the Earth.

This shirt is made of chemical fiber.

A metallic bond refers to a strong bond between metal atoms.

Radioactive elements are produced in nature and scientific experiments.

He is suffering from combat stress reaction.

In the traditional Japanese number system, Nahyuta represents a very large number.

He went to the doctor complaining of objective symptoms.