1) \(2Na+2H_2O\rightarrow2NaOH+H_2\)
2) \(Fe+2HCl\rightarrow FeCl_2+H_2\)
3) \(2Al+3CuCl_2\rightarrow2AlCl_3+3Cu\downarrow\)
4) \(BaCl_2+2AgNO_3\rightarrow Ba\left(NO_3\right)_2+2AgCl\downarrow\)
5) \(6NaOH+Fe_2\left(SO_4\right)_3\rightarrow3Na_2SO_4+2Fe\left(OH\right)_3\downarrow\)
6) \(3Pb\left(NO_3\right)_2+Al_2\left(SO_4\right)_3\rightarrow2Al\left(NO_3\right)_3+3PbSO_4\downarrow\)
1. 2Na+ 2H2O--> 2NaOH+H2
2.Fe+2HCl-->FeCl2+H2
3.2Al+3CuCl2-->2AgCl3+3Cu
4.BaCl2+2AgNO3 -->2AgCl+Ba(NO3)2
5.6 NaOH+Fe2(SO4)--> 2Fe(OH)3+ 3Na2SO4
6.3Pb(NO3)2+Al2(SO4)3-->2Al(NO3)3+3PbSO4