How do you find the oxidation number of a compound?

example: Kbr

Asked by arwen46 12 years ago 1/22/2013 1:43 AM

Last updated by anonymous 12 years ago 1/23/2013 9:43 PM

Answered by Dr. John Carmen 12 years ago 1/23/2013 9:43 PM

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