This problem is very easy.

This problem can be solved with ease.

This chemical has a high degree of aqueousness, so it easily dissolves in water.

Her fickleness, like water, is quite troublesome.

This sugar dissolves in water immediately.

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

What is this material made of?

He is majoring in chemistry at university.

This building is very high.

How tall is this building?