Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 2 - Atoms, Molecules, and Ions - Questions & Problems: 2.54

Answer

Please see the work below.

Work Step by Step

We know that the stock system gives the actual charge of the ion. The use of suffixes e.g -ic and -ous and -per_ic is confusing and fairly random. Thus , indicating the oxidation state of the metal with a roman numeral removes the possibility of confusion about the actual compound and its formula.
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