.

+ K2O + H2Oa 2KOHBaO + H2OaBa (OH)2 + 2Na +2 H2Oa 2NaOH + H2^ Ca + 2H2Oa Ca (OH)2 + H2^ ѳ + = + 2OH + FeSO4a Fe (OH)2 v + 2SO4
.

- ( ) , . , .

, Al Al2O3Al (OH)3 ; Zn ZnO Zn (OH)2 .

䳿 Al2O3 + 6HCl a 2AlCl3+ 3H2O ZnO + 2HCl a ZnCl2+ H2O
2Al (OH)3+ 3H2SO4aAl2(SO4)3+ + 6H2O Zn (OH)2+ H2SO4aZnSO4+ 2H2O
䳿 ( ) !!! , : HAlO2- ( ) H2ZnO2 - ( - ) Al2O3+ 2NaOH a 2NaAlO2+ + H2O ZnO + 2NaOH a Na2ZnO2+ + H2O
Al (OH)3+ KOH a KAlO2+ 2H2O Zn (OH)2+ 2KOHa K2ZnO2+ 2H2O

?

ѳ - , ( ), ' ( )

:

I I II II III III
I II2 II I ()2 III I ()3
I III3 II III3()2 III II2()3

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