Question

1. How do molecules of compounds differ from the molecules of elements?​

Answer 1

Explanation:

Molecules of compounds are composed of atoms of different elements while molecules of elements comprise solely of one type of atom. For example, The atoms in a molecule of $H_{2}O$ (Water) are of different types, namely two Hydrogen and one oxygen atoms. However, when we talk about molecules of  a substance like $O_{2}$ (Oxygen gas) it consists of only oxygen atoms.

I hope this helps!!

Regards,

Lilac584

Answer 2

The only difference between a molecule of a compound and a molecule of an element is that in a molecule of an element, all the atoms are the same. For example, in a molecule of water (a compound), there is one oxygen atom and two hydrogen atoms. ... Ethane is a molecule with 2 carbon atoms and 6 hydrogen atoms.