) ; 2. ;
) ; 3. .
3. , :
) SO3 + ______ = K2SO4 + _____;
) ______ + HCl = CuCl2 + _____;
) Fe(OH)2 t= FeO + _____;
) CrCl3 + _____= Cr(OH)3 + _____.
4. ǒ , , :
19 .
1. :
) ; 1. ,
) ; ;
) ; 2. ,
;
3. ,
.
2. ϳ :
BaO; CO2; Al2O3; HF; Ca(OH)2; Zn; MgO; Be(OH)2; H2SO4;Zn(OH)2; CuO; Fe2O3.
3. .
_______________________________________
_______________________________________
4. :
Na2ZnO4 5← Zn 1→ ZnO 2→ ZnSO4 3→ Zn(OH)24 → Na2ZnO4
↓6 ↓7 ↓8
ZnCl2 Na2ZnO4 Zn(NO3)2
1._______________________________________ ,
2._______________________________________ : _________
3._______________________________________
4._______________________________________ ,
5._______________________________________ : _________
6._______________________________________
7._______________________________________ ,
8._______________________________________ : ______
5. ᒺ 䳿 13 ?
| : | Zn + 2NaOH + 2H2O= Na2ZnO4 + 3H2↑ | ||||
| ______________ | |||||
| : | |||||
| ______________ | |||||
| ³: | |||||
20 Գ : , , , .
1. :
) + →; 1. + ;
) + →; 2. ;
|
|
|
) →; 3. +;
) + →; ;
) + →; 4. ,
) + →; ;
5. + ;
6. + .
2. , :
) 2O3 + ______ = K2SO4 + _____ + 2;
) ______ + = Fe(OH)3 + _____;
) MgCO3 t= MgO + _____;
) CrCl3 + _____= AgCl + _____;
) Fe + _____ = _____ + Zn.
3. ǒ , , :
4. :
) + () ; __________________________________
) + ; __________________________________________
) + ; ________________________________________
) + ; ________________________________________
) ; _______________________________________
21
1. :
) ; 1. ;
) 23; 2. ;
) NaOH; 3. ;
) HNO3; 4. .
2. ( , ?):
↓_+_____
↓_+_____
 + ______
|
↓_+_____
↓_+_____
__+____ 
| |
| c |
| Mg
↓+____
MgO
↓ +______
Mg(OH)2
+ ______
| S ↓_+_____ SO2 ↓_+_____ __+____ | |
| ||
| c _____ |
3. :
|
|
|
Ca 1→ CaO 2→ Ca(OH)2 3→ CaCO3 4→ CaCl2 5→ Ca(OH)2 6→ CaO 7→ Ca
4. :
) MgBr2; ) Mg(OH)2; )Br2; )MgO.
5. , .
22 .
1. :
: ճ :
) ; 1) Al2O3;
