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: 4.49f

Answer

-1

Work Step by Step

$K_2O_2$ From the periodic table, $K$ is +1. Since the overall charge must be 0 then we have: $2K+2O=0$ $2(1)+2O=0$ $2+2O=0$ $2O=-2$ $O=-1$
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