88. Укажите схему реакции с участием HNO3 (к):
1) Cu + HNO3 = Cu(NO3)2 + NO + H,0
2) Zn + HNO3 = Zn(NO3 + NH4NO3 + H2O
3) S - HNO3 = H2SO4 + NO2 + H2O
4) Mg + HNO3 = Mg(NO3)2 + N2 + H2O.
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