I am majoring in physical chemistry at university.

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.

Reducing greenhouse gas emissions is important for environmental protection.

The use of weapons of mass destruction is prohibited by international law.

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