ZnS--->SO2--->SO3--->H2SO4--->CuSO4......
H2SO4--->Al2(SO4)3...
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ZnS+2ZnO=3Zn+SO2
2SO2+O2=2So3
SO3+H2O=H2SO4
H2SO4+CuO=CuSO4+H2O
3H2SO4+2Al=Al2(SO4)3+3H2
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Answers & Comments
ZnS+2ZnO=3Zn+SO2
2SO2+O2=2So3
SO3+H2O=H2SO4
H2SO4+CuO=CuSO4+H2O
3H2SO4+2Al=Al2(SO4)3+3H2