Question

14 what distinguishes compounds from elements based on their composition? a can be separated by physical methods b exist in variable compositions c have fixed ratios of atoms from different elements d composed of only one type of atom

Explanation:

Elements consist of only one - type of atom. Compounds are made up of two or more different types of atoms combined in fixed ratios. Physical methods can't separate compounds into their components easily. Compounds have definite compositions, not variable ones.

Answer:

C. Have fixed ratios of atoms from different elements