I love organic chemistry classes.

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.

The one-eyed goblin was dancing in the forest.

Radioactive elements are produced in nature and scientific experiments.

What are you doing, pipsqueak?

The International Phonetic Alphabet is an essential tool for linguistic research.