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Alege bazele care se descompun la incalzire :NaOH,Cu(OH)2,Ca(OH)2,Fe(OH)2,Al(OH)3,KOH,Zn(OH)2.Scrie ecuatiile reactiilor de descompunere.

Răspuns :

Se descompun prin incalzire, in oxidul de metal si apa, bazele insolubile
Cu(OH)2--------> CuO +H2O
Fe(OH)2--------> FeO + H2O
Al(OH)3---------> ......+.......
Zn(OH)2--------->.......+.......