# Chapter 3 - Sections 3.1-3.12 - Exercises - Problems by Topic: 38c

The full name is iron(III) oxide.

#### Work Step by Step

The charge on Fe must be 3+ for the compound to be charge-neutral with three $O^{2-}$ anions. The name for $Fe_{2}O_{3}$ is the name of the cation, iron, followed by the charge of the cation in parentheses (III) and the base name of the anion, ox, with the ending - ide. The full name is iron(III) oxide.

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