Answer
C
Work Step by Step
Ba: group 2, so its oxidation number is +2
O: group 6, so its oxidation number is -2
Sum: $+2 + OxN_{Mn} +4\times-2=0$
$OxN_{Mn}=+6$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 3 Chemical Reactions - 3-8 Oxidation-Reduction Reactioons - Review & Check for Section 3-8 - Page 131: 1
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