PPT Slide

2. Predict the oxidation number of sulfur in the following compounds. (Recall that the sum of the oxidation numbers in a balanced formula is always zero.)

Hydrogen sulfide H2+S2-

Sulfur dioxide S4+O22- 2H + 4O =

Sulfuric acid H2+SO42- 2(+) + 4(2-) =

Magnesium sulfide MgS

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