This chemical reaction is very dangerous.

This new product uses a special polymer.

In this experiment, we will use a simple substance called oxygen.

In chemistry class, I learned about the process of polymerization.

Through this chemical reaction, monomers polymerize to form polymers.

The formation of a mountain requires millions of years.

He formed a new team.

This new product uses a high-performance polymer alloy.

He is majoring in chemistry at university.

This chemical reacts when heat is added.