That news greatly influenced his opinion.

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

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

No chemical flavoring is used in this ramen at all.

My company specializes in the manufacture of fine chemicals.

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

Only one light was shining into the room.

He is researching about a new energy source.

He is conducting research on a new energy source.

This chemical reacts when heat is added.