How do you find the oxidation number of a compound?

example: Kbr

Asked by arwen46 on 22 Jan 01:43

Last updated by anonymous on 23 Jan 21:43

Answered by Dr. John Carmen on 23 Jan 21:43

NaH2PO4
Na = +1 H = +1 x 2 = +2 O = -2 x 4 = -8
The P is +5.