Question

what is the chemical formula for this compound? fe₃o fe₂o₃ fe₃o₂ feo₂ rewatch

Explanation:

Iron(III) oxide is a common compound. In iron(III) oxide, iron has a +3 oxidation state and oxygen has a -2 oxidation state. Using the criss - cross method for writing chemical formulas (the absolute value of the oxidation state of one ion becomes the subscript of the other ion), for \(Fe^{3 +}\) and \(O^{2-}\), the formula is \(Fe_2O_3\) (since \(|3|\) for \(O\) and \(|2|\) for \(Fe\)).

Answer:

\(Fe_2O_3\)