Закончите уравнения реакций. Определите СО элементов. Найдите окислитель и восстановитель. Составьте е-баланс
H2S+02=
H2S+O2=SO2+H2O
H2SO4+Na=Na2SO4+H2S+H2O
SO2+Br2+H2O=H2SO4+HBr
Cl2+K2MnO4=KMnO4+KCl
CH4+O2=
P+O2=

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