1) MgO+2HCl=MgCl2+H2O
MgO+2H(+)+2Cl(-)=Mg(+2)+2Cl(-)+H2O
MgO+2H(+)=Mg(+2)+H2O
2) Mg(OH)2+2HCl=MgCl2+2H2O
Mg(OH)2+2H(+)+2Cl(-)=Mg(+2)+2Cl(-)+2H2O
Mg(OH)2+2H(+)=Mg(+2)+2H2O
3) CuSO4+2NaOH=Cu(OH)2+Na2SO4
Cu(+2)+SO4(2-)+2Na(+)+2OH(-)=Cu(OH)2+2Na(+)+SO4(2-)
Cu(+2)+2OH(-)=Cu(OH)2
4) CuO+2HCl=CuCl2+H2O
CuO+2H(+)+2Cl(-)=Cu(+2)+2Cl(-)+H2O
CuO+2H(+)=Cu(+2)+H2O
5) FeSO4+2NaOH=Fe(OH)2+Na2SO4
Fe(+2)+SO4(2-)+2Na(+)+2OH(-)=Fe(OH)2+2Na(+)+SO4(2-)
Fe(+2)+2OH(-)=Fe(OH)2
6) Fe(OH)3+3HCl=FeCl3+3H2O
Fe(OH)3+3H(+)+3Cl(-)=Fe(+3)+3Cl(-)+3H2O
Fe(OH)3+3H(+)=Fe(+3)+3H2O
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Answers & Comments
1) MgO+2HCl=MgCl2+H2O
MgO+2H(+)+2Cl(-)=Mg(+2)+2Cl(-)+H2O
MgO+2H(+)=Mg(+2)+H2O
2) Mg(OH)2+2HCl=MgCl2+2H2O
Mg(OH)2+2H(+)+2Cl(-)=Mg(+2)+2Cl(-)+2H2O
Mg(OH)2+2H(+)=Mg(+2)+2H2O
3) CuSO4+2NaOH=Cu(OH)2+Na2SO4
Cu(+2)+SO4(2-)+2Na(+)+2OH(-)=Cu(OH)2+2Na(+)+SO4(2-)
Cu(+2)+2OH(-)=Cu(OH)2
4) CuO+2HCl=CuCl2+H2O
CuO+2H(+)+2Cl(-)=Cu(+2)+2Cl(-)+H2O
CuO+2H(+)=Cu(+2)+H2O
5) FeSO4+2NaOH=Fe(OH)2+Na2SO4
Fe(+2)+SO4(2-)+2Na(+)+2OH(-)=Fe(OH)2+2Na(+)+SO4(2-)
Fe(+2)+2OH(-)=Fe(OH)2
6) Fe(OH)3+3HCl=FeCl3+3H2O
Fe(OH)3+3H(+)+3Cl(-)=Fe(+3)+3Cl(-)+3H2O
Fe(OH)3+3H(+)=Fe(+3)+3H2O