, , .
: 8.
, , , . , -3 NH3 +5 HNO3.
. - .
-
- , , .
, - .
- ; .
:
N2H4 ()
-2; 3.
:
1. (Na0; H20).
2. , , , .
3. : (+1), (+2), (+1) ( NaH, CaH2 ., -1), (-2) ( F2-1O+2 , OO, -1).
4. , .
:
V2+5O5-2; Na2+1B4+3O7-2; K+1Cl+7O4-2; N-3H3+1; K2+1H+1P+5O4-2; Na2+1Cr2+6O7-2
:
A , :
SO2 + Na2O Na2SO3
Cu(OH)2 t CuO + H2O
AgNO3 + KCl AgCl¯ + KNO3
NaOH + HNO3 NaNO3 + H2O
B , , :
2Mg0 + O20 2Mg+2O-2
2KCl+5O3-2 t 2KCl-1 + 3O20
2KI-1 + Cl20 2KCl-1 + I20
Mn+4O2 + 4HCl-1 Mn+2Cl2 + Cl20 + 2H2O
- .
,
|
|
- , . - . :
H20 - 2ē 2H+
S-2 - 2ē S0
Al0 - 3ē Al+3
Fe+2 - ē Fe+3
2Br - - 2ē Br20
- : .
Mn+4 + 2ē Mn+2
S0 + 2ē S-2
Cr+6 +3ē Cr+3
Cl20 +2ē 2Cl-
O20 + 4ē 2O-2
, , - .