I
: (II) (III). (III) F3+ - , (II) - F2+ - .
F3+
)
(NH4)2S (III) F2S3 . (III) F3+ F2+
F2S3 + 4+ = 2F2+ + S + 22S
, III (III) . .
)
N , N4 () - F()3,
F3+ + + 3 = F()3
) (II)
(II) K4[F(N)6] F3 + -
4F3+ + 3[F(N)6]4 = F4[F(N)6]3
, . , (II) .
1 - 2 (III) 2 - 3 K4[Fe(N)6].
)
N4SCN KSCN F3+ , - -
F3+ + SN = [F(SCN)]2+
, .
(III) , , , , .
F2+
)
(II) FS,
FS + 2H+ = Fe2+ + H2S
F3+
Fe3+ + 4H+ + NO3 = Fe3+ + N0 + S + 22
.
)
Na0 KH (II) F()2 - . F()3. .
F2+ , .
) (III)
|
|
|
(III) K3[F(N)6] F2+ -
F2+ + [F(N)6]3 = F3[F(N)6]2
, (II). . F2+.
2 - 3 (II) 1 - 2 K3[F(N)6]. - .
4. n2+
n2+ - .
)
(NH4)2S n2+ nS , .
)
Na0H K n2+ (II) n()2. , . (IV)
2n()2 + 2 = 2nO()2
nO()2 n2+
n2+ + 22 + 2O = n()2 + 2O
2 - 3 (II) n()2. , (II).
2 - 3 3%- 22. -.
(IV)
n()2 + 41 = n12 + 12 + 32
nO()2 + 22 + 2S4 = nS4 + 2 + 32
(II) n()2, .
) (II) n4
. n4 - .
(II) b2
2g2+ + 5b2 + 6+ = 2n4 + 5b2+ + 22
(II), n4 (IV) . , , 1.
b2, 4 - 5 , , ( ) , . , n4 3 - 4 . - 5 I .
, .
(NH4)2S2O8
2n2+ + 5S282 + 82 = 2n4 + 10S42 + 14+
- , (II) n()2. , .
|
|
|
NaiO
2n2+ + 5NaiO + 16+ = 2n4 + 5i3+ + 5N+ + 72
(II) .
n4, , l.
1 - 2 (II) 3-4 6 5 - 6 , . , . .
