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ղ̲ 54:378.14(075.8) 243073 299 ...

-- [ 6 ] --

1. (II) (III) . (II) , (III) . . - (II) , (III) .

FeSO4 + 2NaOH = 2Fe()2 + Na2SO4 FeCl3 + 3NaOH = Fe()3 + 3NaCl

2. (II) . (II) .

Fe(H)2 + 2HCl = FeCl2 + 2H2

3. (II) . . 1-2 (II) . . , (II) , (III) .

4Fe()2 + O2 + 2H2O = 4Fe(O)3

4. (III) . (III) .

. . (III) .

Fe(H)3 + 3HCl = FeCl3 + 3H2 Fe(H)3 + 3KOH = K3[Fe(OH)6]

5. - . (II) ' .

4K3[Fe(CN)6] + 5FeCl2 = K[FeFe(CN)6] + 10KCl (III) .

, ' . - (III) :

FeCl3 + 3KSCN = Fe(SCN)3 + 3KCl .

K4[Fe(CN)6] + FeCl3 = K[FeFe(CN)6] + 3KCl

6. ó . (II) , - (III) . . . . .

16. - : (n4), (Na2SO4), (H2SO4), (NaOH ), (KI), (KNO2 NaNO2), ((NH4)2Cr2O7), , , , , , .

   

17. : (H2SO4), (HNO3), (, , ), (NaOH), (II) (CuCl2), (Na2SO4), (BaCl2), (HNO3), (Na2CO3), (II) (u), , , , , , , .

1. . . 1-2 ( ), 1-2 ( ), 1-2 ( ). .

2. . . 7, 1.

3. . (NaOH), 1-2 . . .

H2SO4 + 2NaOH = Na2SO4 + 2H2

4. . , u(O)2. (II) . (II) . .

CuCl2 + 2NaOH = Cu(H)2 + 2NaCl Cu(H)2 + H2SO4 = CuSO4 + 2H2

5. . . , , . . , .

2SO4 + BaCl2 = BaSO4 + 2HCl Na2SO4 + BaCl2 = BaSO4 + 2NaCl Na2O3 + BaCl2 = BaO3 + 2NaCl , , , . ( ) .

BaO3 + 2HNO3 = Ba(NO3)2 + CO2 + H2O . : Na2O3 + 2SO4 = Na2SO4 + CO2 + H2O

6. . 2 . : Zn + 2SO4() = ZnSO4 + H2

18. : , , (II) (CuCl2 CuSO4), (II) (u), (HNO3), , ( l :

2 = 1:3 1:10), (3 : 2 = 1:3), (22), (IV) (MnO2), , , , , , , , , , .

1. . , 2 . (II) . ( ). ³, .

2. . (II) . ' . , , , (II) .

3. . .

(1:3), (1:10). ³, , .

4. . . (1:3), (1:3). ³, , .

. , . . ³ , , .

5. . . , . . (IV) . .




140 .


19. , , : (NH4Cl), (()2), , (NH4OH), , , , , , , , , , , , , , .

1. . ( ). . . . .

, . , , . , . , . , . , .

ϳ , , .

, . .

2NH4Cl + ()2 = 2N3 + aCl2 + 2H2

2. . . 1-2 . .

NH4 + HCl = NH4Cl + H2 (II) . (II) .

2NH4 + CuSO4 = (NH4)2SO4 + Cu(OH)2 ( ). , , .



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