Вроде так
1)Mg+CuCl2=Cu+MgCl2
2)Zn+FeCl3=Fe+ZnCl2
3)2HNO3+Ca(OH)2=Ca(NO3)2+H2O
4) Fe2(So4)3+NaOH=FeOH
5)Ca+HCl=CaCl2+H2
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Вроде так
1)Mg+CuCl2=Cu+MgCl2
2)Zn+FeCl3=Fe+ZnCl2
3)2HNO3+Ca(OH)2=Ca(NO3)2+H2O
4) Fe2(So4)3+NaOH=FeOH
5)Ca+HCl=CaCl2+H2