Ответ:
1.CuSo4+Naoh-->Cu(OH)2+NaSo4
2H2SO4+Fe2O3-->H20+Fe2(SO4)
3Fe+Cl2-->FeCl3
4.H2O+NCL
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Ответ:
1.CuSo4+Naoh-->Cu(OH)2+NaSo4
2H2SO4+Fe2O3-->H20+Fe2(SO4)
3Fe+Cl2-->FeCl3
4.H2O+NCL