This chemical reaction is very dangerous.

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.

Cosmic background radiation is considered evidence of the Big Bang.

He attacked the enemy using a flamethrower.

In physics, blackbody radiation is a very important concept.

He is facing many difficulties due to gender identity disorder.