4.AgNO3+3NH3·H20==Ag(NH3)2OH+NH4NO3+2H20
5.CaC2+2H2O==Ca(OH)2+C2H2(气体)
6.Mg3N2+6H2O==3Mg(OH)2+2NH3(气体)
7.Na2S2O3+2HCl==2NaCl+S(沉淀)+SO2(气体)+2H2O
8.2KAl(SO4)2+3Ba(OH)2=2Al(OH)3(沉淀)+3BaSO4(沉淀)+K2SO4+3H2O
9.2FeBr2+3Cl2+2FeCl3+2Br2
10.4HNO3=4NO2+O2+2H2O
11.Cu(OH)2==CuO+H2O
(反应条件有些没写)