A)FexOy+HNO3=>Fe(NO3)3+NH4NO3+NO+H2OB)CxHy=>CO2+H2OC)CxHyOz=>CO2+H2OD)CxHyOzNt+O2=>CO2+N2+H2OE)Zn+H2SO2=>ZnSO4+H2S+H2OG)Zn+H2SO4=>ZnSO4+S+H2O
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