1.Ca+2AgNO3=Са(NO3)2+2Ag
2.2Al+3H2SO4=Al2(SO4)3+3H2
3.2Na+S=Na2S
4.Zn+2HI=ZnI2+H2
5.Fe+2HCl=FeCl2+H2
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1.Ca+2AgNO3=Са(NO3)2+2Ag
2.2Al+3H2SO4=Al2(SO4)3+3H2
3.2Na+S=Na2S
4.Zn+2HI=ZnI2+H2
5.Fe+2HCl=FeCl2+H2