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.

This building is very high.

He is majoring in chemistry at university.

What is this material made of?

How tall is this building?