(1)H2(g)+Cl2(g)=2HCl(g) △H=-2Q kJ/mol (2)碱性;AlO2-+2H2OAl(OH)3+OH- (3)2Fe2++Cl2=2Fe3++2Cl- (4)2Al+2OH-+2H2O=2AlO2-+3H2↑(5)阴;Zn2++2e-=Zn
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