Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 20 - Oxidation-Reduction Reactions - 20 Assessment: 50

Answer

+4 +5 +5 +3

Work Step by Step

Recall that the oxidation number of O is usually 2-. Because the sum of the oxidation numbers in a compound must be 0, the oxidation number of P is +4. Recall that the oxidation number of O is usually 2-. Because the sum of the oxidation numbers in this ion is 3- (given), the oxidation number of P is +5. Recall that the oxidation number of O is usually 2-. Because the sum of the oxidation numbers in a compound must be 0, the oxidation number of P is +5. Recall that the oxidation number of O is usually 2-. Because the sum of the oxidation numbers in a compound must be 0, the oxidation number of P is +3.
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