Question

What does percent composition tell you about a substance?

O A. It gives you the molecular formula of the substance.
O B. It gives you the total mass of the substance,
O C. It tells you what the substance is made of,
O D. It tells you how many moles are in the substance,

Answer 1

Percent composition tells you which types of atoms (elements) are present in a molecule and their levels. Percent composition can also tell you about the different elements present in an ionic compound as well.