Nitrogen has 5 valence electrons (Group V). It can gain up to 3 electrons (-3), or
lose up to 5 (+5) electrons. Fill in the missing names or formulas and assign an oxidation
state to each of the following nitrogen containing compounds:
Compound
Formula
Oxidation state of N
Ammonia
Nitrogen Gas
Nitrite
Nitrate
Dinitrogen Monoxide
Nitrogen Dioxide
Hydroxylamine
NH2OH
Nitrogen Monoxide
Hydrazine
N2H4
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For each reaction, find the oxidation number for each element and say
what is oxidized and what is reduced.
1. Zn(s) + 2 HCl(aq)  ZnCl2(aq) + H2(g)
2. 2 FeCl3 + Na2SO3 + H2O  2 FeCl2 +Na2SO4 + 2 HCl
3. C12H22O11 + H2O  4 C2H6O + 4 CO2
4. 2MnO4–(aq) +10Cl–(aq) + 16H+(aq)  5Cl2(g) + 2Mn2+(aq) +8H2O(l)
ACADEMIC ACHIEVEMENT CENTER
Advancing Students… Enhancing Learning
[email protected] ǀ 410-704-2291
ACADEMIC ACHIEVEMENT CENTER
Advancing Students… Enhancing Learning
[email protected] ǀ 410-704-2291