1. Molecules By Henry z

3. H20 H H O Chemical formula: H20 Key H-hydrogen atom O-oxygen atom This is a molecule of Water as it is a combination of different atoms from Different elements. It has 2 hydrogen atoms and 1 oxygen atom.

4. Methane C H H H H Key C-carbon H-hydrogen This is a molecule of Methane as it is a Combination of Different atoms from Different elements. It Has 4 Hydrogen atoms And 1 carbon atom. Chemical formula CH4