I am not sure
First it is necessary a correct chemical analysis of this compond, with the goal to establish the empirical chemical composition.
SO3 is the chemical formula for sulfur trioxide.
The correct formula for gallium oxide is Ga2O3.
the correct chemical name for the formula Na5S would be pentasodium sulfide however there is no such chemical formula. period
The correct name is sulfuric acid and the chemical formula is H2SO4.
the chemical formula with carbon is logicly skeletal system but really it is transporated system.the chemical formula is slumdog millionaire.its correct.
Integers are placed in front of the formula or a chemical symbol for and element.
This chemical formula is SF6.
the correct name for the chemical formula is copper sulfate.
For correction purposes the correct way to write this is H2O and it is the chemical formula for water.
If you break down the chemical by it's elements and apply some simple rules, you can find the formula for a chemical compound.
The chemical formula (more correct is formula unit) of sodium chloride is NaCl.