, ,


 

- −2

· – 2-. – .

1) . +

MgO+2HCl=MgCl2+H20

2) u 1 2 . –

NaO+H20=Na(OH)2

3)

3Na2O+P2O5=2Na3PO4

· – . – - , .

1) . –

CO2+2NaOH=Na2CO3+H20

2) . -

SO2+2NaOH=Na2SO3+H2O

3) . –

SO3+H20=H2SO4

· – ZnO, BeO, Al2O3, Cr2O3, SnO, SnO2, PbO, PbO2, GeO, GeO2. – .

1) . –

ZnO+2HNO3=Zn(NO3)2+H2O

2) . –

ZnO+2KOH=K2Zn02+H2O

3) . –

ZnO+Na2O=Na2Zn02

() — . . , , , :

· () — ,

· ( ) — ,

· , ,

- , OH

– - OH(1- ) ( )

 

·

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