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:




:

































 

 

 

 


:




в Ҳӻ

: .

: Na2S23, Hl, l2, AgNO3.

 

 

1 ij

Na2S23 (5-6 ) ᒺ Hl. .

Na2S23 + HCl → H2S23 + NaCl

?

________________

.

______________________

 

 

2 ij

.

Na2S23 .

ϳ , , .

Hl; :

 

l2 + Na2S23 + H2O = NaCl + H2S4 + HCl

___________________________________________________________________

_________________________________________________________________

 

:

) l- (䳺 AgNO3);

) SO42- (䳺 Ba(NO3)2).

г .

 

HCl + AgNO3 →__________________________________________

_________________________________________________________________

_________________________________________________________________

H2SO4 + Ba(NO3)2 →_______________________________________

______________________________________________________________________

 

 

3 - (S2O32-)

2. :

 

Na2S2O3 + 2 → Na2S4O6 + NaI

 

, .

_________________

 

.

 

1 , ?

2 䳿 ?

3 ?

4 .

5 ϳ :

Cl2 + Na2S2O3 + H2O → HCl + S + Na2SO4

 

 

7

: Ͳί ,

Ͳ Ͳ޻

: .

: , HNO3, , , , S, Bal2, Zn, NaOH, HCl, (NH4)2Cr2O7

 

1

.

. , , . .

HNO3 → ___________________________________________

________________________

 

ͳ ; , O2 NO2. , .

 

 

2

. 5 HNO3., 5 HNO3 . . :

Cu + HNO3() → ___________________________________________

______________________________________________________________________

Cu + HNO3() → _________________________________________

______________________________________________________________________

 

, HNO3 : 䳿 HNO3 . (IV) (NO2), () (NO).

 

 

3 HNO3

.

HNO3, . ϳ , . :

 

S + HNO3 → ___________________________________

______________________________________________________________________

 

 

HNO3 () , - (IV)

. :

 

SO42-+ Ba2+→ ________________________________________

 

.

 

4 ³

HNO3. , , . ( ). . () .

, , :

 

Zn + HNO3() → _____________________________________

________

 

䳿 HNO3 , .

 





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