Fe2O3
The name of the compound iron II and oxygen (FeO) is iron(II) oxide - the correct name after the inorganic chemistry nomenclature of IUPAC - or ferrous oxide.
Fe2O3
The chemical name for FeSe is iron(II) selenide.
Iron (II) sulfate is the correct name for this compound. The Fe ion has a charge of 2 and so does the sulfate ion, so there is no subscript after them.
iron(II) sulphate
Iron(III)nitride
It is Ferrous chromate or Iron (II) chromate .
The chemical name for FeCrO₄ is iron(II) chromate.
The chemical name for Fe(OH)2 is iron(II) hydroxide.
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.
FeSO4 stands for iron (II) sulfate, which is a chemical compound composed of iron, sulfur, and oxygen. It is commonly used in various industrial applications and as a dietary supplement for iron deficiency.
The chemical formula of the anion ferrocyanide is Fe(CN)64-.