The chemical formula for a water molecule, H2O, means that water contains one oxygen atom for every two hydrogen atoms. True or false? True. The chemical formula for a water molecule, H2O, means that water contains one oxygen atom for every two hydrogen atoms.
Yes! That is true that one oxygen atom needs two hydrogen because the outer most shell of oxygen have two none bonded electrons so and hydrogen can make only one bond so H-O-H this is water molecule!