Posted: January 8th, 2016
H2S contains sulfur which has an oxidation number of -2. | ||
Each oxygen in KMnO4 has an oxidation number of -2, and the oxidation number of K is +1; therefore, the oxidation number on Mn in this compound is +7. | ||
The oxidation number of a monoatomic ion is the same as its ionic charge, such that Na ion has an oxidation number of +1. | ||
The oxidation number of each atom in an element is zero, such that the oxidation number of Cl2 is -2. |
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