Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 3 - Sections 3.1-3.12 - Exercises - Problems by Topic: 39b

Answer

The full name is chromium(III) sulfide.

Work Step by Step

The charge on Cr must be 3+ for the compound to be charge-neutral with three $S^{2-}$ anions. The name for $Cr_{2}S_{3}$ is the name of the cation, chromium, followed by the charge of the cation in parentheses (III) and the base name of the anion, sulf, with the ending - ide. The full name is chromium(III) sulfide.
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