Peter M.
asked • 07/09/21What is the oxidation number of O in PO43–?
A. 0
B. -1
C. -2
D. -3
E. None of the Above
J.R. S. answered • 07/09/21
Ph.D. University Professor with 10+ years Tutoring Experience
See if you can figure it out...
The oxidation number for oxygen is always going to be -2 unless the oxygen is found in a peroxide, in which case the oxidation number is -1.
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