The sugar molecule glucose has six carbon atoms twelve hydrogen atoms and six oxygen atoms so its chemical formula is C 6 H 12 O 6. The chemical formula for hydrogen gas is H2. Liquid hydrogen LH2 or LH 2 is the liquid state of the element hydrogen.
By dividing the subscripts by 2 we can determine the lowest whole number ratio which is 1H1O.
The chemical formula for hydrogen gas is H2. So 826612 68883 atoms of carbon. Therefore the empirical formula for H_2O_2 is HO. Most cars burn petrol or diesel in their engines.