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.
The chemical formula Fe2O3 consists of iron (Fe) and oxygen (O) elements.
Fe2O3
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 (contain iron and oxygen).
Iron reacts with oxygen to form iron oxide. The chemical formula for iron oxide is Fe2O3 (rust) or Fe3O4.
IOU 1 answer ;)See this:anhydrous-iron-oxide
The chemical formula for iron (lll) oxide is Fe2O3.
The chemical formula for rust is Fe2O3.nH2O, where Fe represents iron and O represents oxygen. Rust is a combination of iron oxide and water molecules that forms when iron is exposed to oxygen and moisture in the air.
The chemical formula for iron (III) oxide is Fe2O3, where Fe represents iron and O represents 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.)