In this chemistry experiment, we will learn about the dangers of cyanide compounds.

This compound was made by the chemical combination of two different elements.

These two elements chemically combine to create a new substance.

He is majoring in chemistry at university.

He is an expert in chemistry.

Organic solvents play an important role in chemical reactions.

It is important to understand the importance of health.

His travel story was very interesting.

Physics is a difficult subject.

This is my precious thing.