A coefficient serves which purpose in a chemical equation?(1 point)

Question

It shows how many atoms are in a chemical molecule.
It shows how many molecules there are of a particular substance.
It shows how many atoms there are of a particular element inside of a molecule.
It shows how many atoms there are of a particular element.

Answer 1

In a chemical equation, a coefficient serves to show how many molecules there are of a particular substance. So the correct answer is:

It shows how many molecules there are of a particular substance.