This shirt is made of chemical fiber.

The government declared a state of emergency to prevent the spread of the new coronavirus.

Neurotransmitters are responsible for transmitting information between nerve cells.

Sufficient caution is necessary when handling radioactive materials.

He played Russian roulette, risking his life.

Hydrocyanic acid is a very dangerous chemical.

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.