Place the coefficients, and indicate the oxidation states of the metal and nitrogen before and after reactions
| December 10, 2020 | education
Place the coefficients, and indicate the oxidation states of the metal and nitrogen before and after reactions:
a) Zn + Pb (NO3) 2 = Pb + Zn (NO3) 2
b) S + HNO3 = H2O4 + NO
a) Zn + Pb (NO3) 2 = Pb + Zn (NO3) 2
Zn: oxidation state from 0 to +2
Pb: oxidation state from +2 to 0
N: oxidation state was +5, became +5 (remains the same).
b) S + 2HNO3 = H2SO4 + 2NO (you missed sulfur in acid here)
N: oxidation state was +5, now +2.
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