СuS + H2 -> Cu + H2S
2H2S + 3O2 = 2SO2 + 2H2O
2SO2 + O2 = 2SO3
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СuS + H2 -> Cu + H2S
2H2S + 3O2 = 2SO2 + 2H2O
2SO2 + O2 = 2SO3