This inorganic compound plays an important role in chemical reactions.

Health is very important.

His opinion is very important.

This is an organic vegetable.

This compound was made by the chemical combination of two different elements.

These two elements chemically combine to create a new substance.

He is majoring in chemistry at university.

The Franciscan Order is a part of the Catholic Church.

He is an expert in chemistry.

The story of Frankenstein makes you think deeply about the ethics of science.