PbCl2 + H2O2 = Na2So4 + H2S = BaSo4 + C = HNO3 + Cu2O = Al + KNO3 + KOH = NaOH + H2O2 =

Question

PbCl2 + H2O2 =

Na2So4 + H2S =

BaSo4 + C =

HNO3 + Cu2O =

Al + KNO3 + KOH =

NaOH + H2O2 =

Answer 1

6)NaO2+H2O) наверное так)