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Name___________________
Date___________ Pd._____
Oxidation Numbers Chemistry
Unit 10: Redox
Determine the oxidation states for each atom (or polyatomic ion) present in the given formulas.
1. Cl2
Cl = ____
2. Cl-
Cl = ____
3. NaNa = ____
4. Na+
Na = ____
5. KClK = ____Cl = ____
6. H2SH = ____S = ____
7. CaOCa = ____O = ____
8. H2SO4
H = ____SO4 = ____
9. NH4ClNH4 = ____Cl = ____
10. NO2
N = ____O = ____
11. NH3
N = ____H = ____
12. Na2O2
Na = ____O = ____