Chemotransmitters play an important role in the transmission of information between nerve cells.

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

No chemical flavoring is used in this ramen at all.

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

His long talk is just like 'a hundred days of sermonizing without a fart.'

This music is flowing with a pleasant ⠐⠫ along with a beautiful melody.