1. Закончите уравнения реакций:
А) SO2 + O2 =
Б) C2H6 + O2 =
В) FeS2 + O2 =

2. Закончите уравнения реакций:
А) H2S + O2 =
Б) Na + O2 =
В) Al + O2 =
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