This chemical reaction is very dangerous.

Dry distillation is a chemical reaction that involves heating a substance to high temperatures, turning it into vapor, and then cooling it into a liquid or solid.

It's high temperature today, it's hard to go out.

This substance is a solid.

By heating food, you can kill bacteria.

Please heat the meal.

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

Please tell me the way to solve this problem.

I decided to change my daily routine.

This bottle contains an unknown liquid.