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.

He is suffering from combat stress reaction.

Neurotransmitters are responsible for transmitting information between nerve cells.

He is facing many difficulties due to gender identity disorder.

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

My company specializes in the manufacture of fine chemicals.

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.

No chemical flavoring is used in this ramen at all.