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.

Gender identity refers to the gender that each individual recognizes themselves as.

The use of renewable energy helps protect the global environment.

He is suffering from combat stress reaction.

He is facing many difficulties due to gender identity disorder.

The concept of chemical equivalent is essential for understanding chemical reactions.