Question

what is the chemical formula for iron (iii) oxide?
a. fe₂o₃
b. fe₃o₂
c. fe₃o
d. feo

Explanation:

Iron (III) Oxide is a compound formed by iron (Fe) and oxygen (O). The Roman numeral III indicates that the iron has a +3 oxidation state. Oxygen typically has an oxidation state of -2. To balance the charges, we need 2 iron atoms (total charge +6) and 3 oxygen atoms (total charge -6). This gives the formula \(Fe_2O_3\).

Answer:

A. \(Fe_2O_3\)