Iron (II) oxide.
FeO
=====( older name still in use; ferrous oxide )
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.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
There are a umber of different oxides of iron. It depends of the oxidation state of iron. Hematite is Fe2O3, iron(III) oxide. Magnetite is Fe3O4 (diron(II) diron(III) oxide. There is also FeO, iron(II) oxide.
a. 1 iron atom per molecule. in total, two atoms
According to the rules for naming ionic compounds, Fe2O5 would be referred to as Iron (V) oxide.
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.
Ferrous Oxide or Iron 2 oxide
Iron(II) oxide is Fe(OH)2 Iron(III) oxide is Fe(OH)3
I am going to assume you meant ferrous oxide. Ferrous oxide is also known as Iron(II) oxide and has the formula unit FeO. The oxidation number of iron in iron(II) oxide is +2.
Iron(II) oxide, also known as ferrous oxide, is a chemical compound with the formula FeO. It is a black powder that is a common iron oxide mineral found in nature. Iron(II) oxide is used in various industrial applications such as in the production of steel and pigments.
The formula of two iron (Fe) and three oxygen (O) atoms would be written as Fe2O3. This compound is known as iron(III) oxide or ferric oxide.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
There are a umber of different oxides of iron. It depends of the oxidation state of iron. Hematite is Fe2O3, iron(III) oxide. Magnetite is Fe3O4 (diron(II) diron(III) oxide. There is also FeO, iron(II) oxide.
It isn't Fe is simply iron There are three common oxides of iron. Iron II oxide, FeO (Fe2+ ion and O2- ion) Iron III oxide Fe2O3 (2 Fe3+ ions, 3 O2- ions) Iron II, III oxide Fe3O4 (2Fe 3+ ions, 1 Fe2+ ion, 4O2- ions) The formula are such that the overall charge of each oxide balances out to zero.
a. 1 iron atom per molecule. in total, two atoms
The name of that compound is Iron (III) Oxide. The reason you must include the "(III)" is because Iron (Fe) has two possible charges, 2+ and 3+. If it was Iron (II) Oxide, the formula would be FeO. This is because Iron would have a 2+ charge, and the Oxygen would have a 2- charge, so it would bond equally.
Iron (III) Oxide ( or, the older term, Ferric Oxide )