: -
__________________ ______________
..
(, )
____________ ______________
..
(, )
:
- , ;
- - - .
- () _________________________
_____________
___________________________________________________
_____________
:
PbO2, KClO3, CrCl3, Ca(HSO4)2, KMnO4, CO2, C2H2, Na2Cr2O7, H2O2.
_________________________________
__________________________________
- ____________________________________________________________
_____________
- _________________________________________________________
_____________
, , ( ):
K Mn O4 - _________; | Mn O2 - ___________; | Na2 S O3 - _________; | K I - _____________; |
P H3 - ____________; | Na2 S ___________; | V 2O5 - ___________; | H N O3 - __________; |
:
1.____________
2.____________
3.___________
- ( , , φ0)
__________________________
, ________________________________
__________________ ;
, ________________________________
__________________ ;
() ____________________
_____________________________, , _________________
-
1.
- ______________________.._________________________,
( ):
1 ______________________________________________________________
2 __________________________________________________________
3 ____________________________________________________________.
, , :
|
|
1. :
KMnO4 + Na2SO3 + H2SO4 → MnSO4 + K2SO4 + Na2SO4 + H2O
:
_____________
:
MnO4-_______+________→ Mn2+_________+________ (______________)
SO32-________+________→ SO42-________+________ (______________)
, , :
_____________
.
, :
, φ0 (______________________) =
φ0 (______________________) =
= _________.
2. :
KMnO4 + Na2SO3 + H2O → MnO2 + Na2SO4 + KOH
:
_____________
:
MnO4-_______+________→ MnO2_______+________ (_______________)
SO32-_______+________→ SO42-_______+________ (______________)
, , :
_____________
.
, :
, φ0 (_____________________) =
φ0 (____________________) =
= _________.
3. :
KMnO4 + Na2SO3 + OH → 2MnO4 + K2SO4 + Na2SO4 + H2O
:
________________
:
MnO4-_______+________→ MnO4-_______+________ (______________)
SO32-_______+________→ SO42-_______+_________ (______________)
, , :
________________
.
, :
, φ0 (_____________________) =
φ0 (_____________________) =
= _________.
: ( , - )___________________________________________________
_____________
_____________
_____________
_____________
2. - ,
_________________________ , ____________________________________________
:
1____________
2____________
1. :
KMnO4 + NaNO2 + H2SO4 → MnSO4 + K2SO4 + NaNO3 + H2O
:
_____________
:
MnO4-_______+________→ Mn2+ _______+________ (______________)
NO2-_______+________→ NO3- _______+________ (______________)
, , :
_____________
.
2. :
KI + NaNO2 + H2SO4 → I2 + K2SO4 + N2 + H2O
:
|
|
_____________
:
I-_______+________ → I2_______+________ (______________)
NO2-_______+________→ NO3-_______+________ (______________)
, , :
_____________
.
: ( ; - , , )______________________________________________________
_____________
_____________
_____________
_____________