There are a number of compounds of iron wuth oxygen,
iron(I) oxide, ferrous oxide, FeO
iron (II,III) oxide ferric ferrous oxide, Fe3O4
iron(III) oxide, ferric oxide, Fe2O3.
Fe2O3
The chemical formula of magnetite is Fe3O4 (contain iron and oxygen).
Iron and Oxygen.
The chemical formula for Iron Sulphate is FeSO4 So, there is Iron, Sulphur and Oxygen present.
Fe3O4 (The numbers are subscripts, meaning they are smaller, and go beside the element.)
The chemical formula for Iron Sulphate is FeSO4 So, there is Iron, Sulphur and Oxygen present.
Fe3O2. But it's not right! Oxygen forms a 2- ion and iron can be 2+ or 3+. So the formulae of iron oxide can be FeO or Fe2O3.
The chemical formula of magnetite is Fe3O4.Iron: 74,41 %Oxygen: 27,59 %
The chemical formula of iron pyrite is FeS2.
Pyrophosphate has the chemical formula (P2O7)-4. It is a class of chemical anions that were originally formed from heating (pyro) phosphates. They are formed by esterification of two phosphates (linking them with one of the phosphate oxygen atoms).
Fe2(SO3)3 Ferric sulfite or Iron III sulfite.Absorbs oxygen from the air to form iron III sulfate.
The chemical formula for iron (lll) oxide is Fe2O3.