Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 4 - Reactions in Aqueous Solution - Exercises: 4.49c

Answer

+7

Work Step by Step

KMnO4. Oxygen is -2 and there are 4 so 4*-2 = -8. K is an alkali metal so it is +1. The overall charge is 0 so the sum of the oxidation states is 0 and we have: +1 +x -8 = 0 x = +7
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