The use of this machine is simple.

We will use phosphoric acid in this chemical experiment.

He is majoring in chemistry at university.

We conducted a new experiment in science class.

This computer can be used by anyone.

We will conduct a new chemistry experiment tomorrow.

He is an expert in chemistry.

I learned about the properties of phosphorous acid in chemistry class.

We spread phosphate fertiliser on the field.

This fertilizer is rich in phosphates.