Answer
+4
Work Step by Step
SO2. Oxygen is -2 and there are two of them so that is 2*-2 = -4. Since the sum of oxidation states must be 0 and we have that oxygen is -4, that means S must be +4.
Chemistry: The Central Science (13th Edition)
by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.
Published by
Prentice Hall
ISBN 10:
0321910419
ISBN 13:
978-0-32191-041-7
Chapter 4 - Reactions in Aqueous Solution - Exercises - Page 159: 4.49a
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