A water molecule is an example of a compound.
It is NOT a mixture because it is not a combination of 2 or more substances.
It is NOT an element because water is composed of two different elements, those being 2 atoms of hydrogen and 1 atom of oxygen.
It is NOT an atom because water is composed of 2 hydrogen atoms and 1 oxygen atom.
It IS a compound because it is composed of two different elements.
