高中化学常考离子反应方程式归纳

高中化学常考离子反应方程式归纳

2Al + 6H == 2Al + 3H2↑

2Al + 2OH- + 2H2O == 2AlO2- + 3H2↑

Al + 3H2

O Al(OH)3 + 3H

Al 3+ + 3OH- == Al(OH)3↓

Al + 4OH == AlO2 + 2H2O

3+--3Al + 10OH == 2Al(OH)3↓ + AlO2 + 2H2O (当n(AlCl3)/n(NaOH)= 3 :10时) Al 3+ + 3NH3.H 2O == Al(OH)3↓+ 3NH4+

2Al + 3CO3 + 3H2O == 2Al(OH)3↓ + 3CO2↑

Al + 3HCO3 == Al(OH)3↓ + 3CO2↑

Al + 3HS + 3H2O == Al(OH)3↓ + 3H2S↑

2Al 3+ + 3S2- + 6H2O == 2Al(OH)3↓ + 3H2S↑

Al 3+ + 3AlO2- + 6H2O== 4Al(OH)3↓

2Al 3+ + 3SiO32- == Al2(SiO3) 2↓

AlO 2 + 2H2

O Al(OH)3 + OH

AlO 2- + H+ + H2O == Al(OH)3↓

AlO 2- + 4H+ == Al3+ + 2H2O

9AlO 2 + 30H == 2Al(OH)3↓ + 7Al + 12H2O (当n(NaAlO2)/n(HCl)= 3 :10时) 3AlO 2- + Fe3+ + 6H2O == Fe(OH)3↓+ 3Al(OH)3↓

AlO 2 + NH4 +H2O == Al(OH)3↓ + NH3↑

AlO 2- + HCO3- + H2O == Al(OH)3↓+ CO32-

2AlO 2- + CO2 + 3H2O ==2 Al(OH)3↓+ CO32-

AlO 2- + CO2 + 2H2O == Al(OH)3↓+ HCO3-

Al 2O 3 + 6H+ == 2Al3+ + 3H2O

Al 2O 3 + 2OH- == 2AlO2- + H2O

Al(OH)3 + 3H+ == Al3+ + 2H2O

--Al(OH)3 + 2OH == AlO2 + 2H2O

Ag + + H2

O AgOH + H+

Ag + NH3.H 2O == AgOH↓+ NH4 ;

Ag + + 2NH3.H 2O == [Ag(NH3) 2]+ + H2O

Ag + + Cl- == AgCl↓

Ag + + Br- == AgBr↓

Ag + + I- == AgI↓

3Ag + + PO43- == Ag3PO 4↓

2Ag + + CO32- == Ag2CO 3↓

Ag 2CO 3 + 2H == 2Ag + CO2↑ + H2O

Ag 3PO 4 + 3H+ == 3Ag+ + H3PO 4

2Ag[(NH3) 2] + 2OH + CH3CHO

+--+3+3++3+--3+2--3+3+---+3+-++++++- CH 3COO + NH4 + 2Ag↓ + 3NH3 + H2O -+2Ag[(NH3) 2] + 2OH + CH2OH(CHOH)4CHO

Ba 2+ + SO42- = BaSO4↓

Ba 2+ + CO32- = BaCO3↓

3Ba 2+ + 2PO43- = Ba3(PO4) 2↓ CH 2OH(CHOH)4COO + NH4 + 2Ag↓ + 3NH3 + H2O -+

Ba + 2OH + CO2 == BaCO3↓ + H2O

Ba 2+ + 2OH- + 2H+ + SO42- == BaSO4↓+ 2H 2O ( NaHSO 4溶液中加Ba(OH)2,使溶液呈中性) 2+-+2-2+Ba + OH + H + SO4== BaSO4↓+ H2O (NaHSO 4溶液中加Ba(OH)2,使Ba 全部沉淀) BaCO 3 + 2H+ == Ca2+ + CO2↑+ H2O

2Br + Cl2 = 2Cl + Br2

Br 2 + SO2 +2H2O == 2Br- + 2H+ + SO42-

4Br + 2Fe + 3Cl2 == 2Fe + 2Br2 + 6Cl (足量Cl 2) -2+3+-2Br + 2Fe + 2Cl2 == 2Fe + Br2 + 4Cl(当n(FeBr2)/n(Cl2)= 1 :1时) 10Br - + 6Fe2+ + 8Cl2 == 6Fe3+ + 5Br2 + 16Cl- ( 当n(FeBr2)/n(Cl2)= 3 :4时) CO 3 + 2Ag== Ag2CO 3↓

CO 3 + Ba== BaCO3↓

CO 3 + Ca== CaCO3↓

CO 32- + 2H+== CO2↑+ H2O

CO 32- + H2

O HCO 3- + OH-

3CO 32- + 2Al3+ + 3H2O == 2Al(OH)3↓ + 3CO2↑

3CO 3 + 2Fe +3H2O == 2Fe(OH)3↓ + 3CO2↑

CO 2 + 2AlO2- + 3H2O ==2 Al(OH)3↓+ CO32-

CO 2 + AlO2- + 2H2O == Al(OH)3↓+ HCO3-

CO 2 + OH == HCO3

CO 2 + Ba2+ + 2OH-== BaCO3↓ + H2O

CO 2 + 2OH == CO3 + H2O

3CO 2 + 5OH- == 2CO32- + HCO3- + 2H2O (当n(CO2)/n(NaOH)= 3 :5时) CO 2 + SiO32- + 2H2O == H4SiO 4↓+ CO32-

Ca 2+ + 2OH- + CO2 == CaCO3↓ + H2O -2--- 2-3+2-2+2-2+2-+-2+- --2+3+-

Ca 2+ + 2OH- + SO2 == CaSO3↓ + H2O

Ca 2+ + 2ClO- + SO2 + H2O == CaSO4↓ + HClO + H+ + Cl- (少量SO 2)

Ca 2+ + 2ClO- + 2SO2 + 4H2O ==CaSO4↓ + 2Cl - + 4H+ + SO42- (足量SO 2)

2+-Ca + 2ClO + CO2 + H2O == CaCO3↓ + 2HClO

CaCO 3 + 2H+ == Ca2+ + CO2↑+ H2O

Cl 2 + H2O == Cl + H + HClO

Cl 2 + 2OH- == Cl- + ClO- + H2O

Cl 2 + 2OH- == Cl- + ClO- + H2O

Cl 2 + 2I- == 2Cl- + I2

Cl 2 + H2SO 3 + H2O == 2Cl- + SO42- + 4H+

Cl 2 + H2S == 2Cl- + 2H+ + S↓

Cl 2 + 2Fe2+ == 2Fe3+ + 2Cl-(向FeBr 2溶液中少量Cl 2) 3Cl 2 + 2Fe + 4Br == 2Fe + 2Br2 + 6Cl(足量Cl 2) 2Cl 2 + 2Fe2+ + 2Br- == 2Fe3+ + Br2 + 4Cl- (当n(FeBr2)/n(Cl2)= 1 :1时) 8Cl 2 + 6Fe + 10Br== 6Fe + 5Br2 + 16Cl (当n(FeBr2)/n(Cl2)= 3 :4时) Cl 2 + 2I- == 2Cl- + I2

Cl 2 + 2I- == I2 + 2Cl-(向FeI 2溶液中通入少量Cl 2) 3Cl 2 + 2Fe2+ + 4I-== 2Fe3+ + 2I2 + 6Cl- (足量Cl 2) 4Cl 2 + 2Fe2+ + 6I- == 2Fe3+ + 3I2 + 8Cl- (当n(FeI2)/n(Cl2)= 3 :4时) 2+--+2+-3+- 3+-

2Cl + 4H + MnO2== Mn + Cl2↑+ 2H2O

Cl + Ag == AgCl↓

ClO - + H+ == HClO

-+-2-ClO + SO2 +H2O == 2H + Cl + SO4

ClO - + H2

O HClO + OH-

Cu + 2Fe == 2Fe + Cu

3Cu + 2NO3- + 8H+ == 3Cu2+ + 2NO↑+ 4H2O

2+Cu + 2H2

O

2+

2+

2+3+2+2+--+2++ Cu(OH)2 + 2H 2++Cu 2+ + 2NH3.H 2O == Cu(OH)2↓+ 2NH4+ Cu + 4NH3.H 2O == [Cu(NH3) 4] + 4H2O Cu + 2Na + 2H2O == 2Na + Cu(OH)2↓+ H2↑ Cu + H2S == 2H + CuS↓

Cu 2+ + Fe == Cu + Fe2+

Cu 2+ + 2OH- == Cu(OH)2↓

CuO + 2H+ == Cu2+ + H2O

C 6H 5O + H2

O C 6H 5OH + OH

C 6H 5O - + CO2 == C6H 5OH + HCO3-

6C 6H 5OH + Fe 3+ == [Fe(C6H 5O) 6]3-(紫色溶液) + 6H+

CH 3CHO + 2Ag[(NH3) 2] + 2OH

+- ++--CH 3COO + NH4 + 2Ag↓ + 3NH3 + H2O -+

CH 3CHO + 2Cu(OH)

2 CH 3COOH + Cu2O ↓ + 2H2O

2CH 3COOH + CaCO3 == 2CH3COO - + Ca2+ + CO2↑ + H2O

CH 2OH(CHOH)4CHO + 2Ag[(NH3) 2]+ + 2OH

- CH 2OH(CHOH)4COO - + NH4+ + 2Ag↓ + 3NH3 + H2O CH 2OH(CHOH)4CHO + 2Cu(OH)

2 CH 2OH(CHOH)4COOH + Cu2O ↓ + 2H2O

5C 2H 4 + 12MnO4- + 36H+ == 12Mn2+ + 10CO2↑ + 28H2O

5C 2O 42- + 2MnO4- + 16H+ == 2Mn2+ + 10CO2↑ + 8H2O

2F 2 + 2H2O == 4HF + O2↑

Fe + 2H+ = Fe2+ + H2↑

Fe + Cu = Fe + Cu

Fe + 2Fe3+ == 3Fe2+

Fe 2+ + 2OH- == Fe(OH)2↓

2Fe 2+ + Cl2 == 2Fe3+ + 2Cl-

2Fe 2+ + Br2 == 2Fe3+ + 2Br-

2Fe 2+ + H2O 2 + 2H+ == 2Fe3+ + 2H2O

3Fe 2+ + NO3- + 4H+ == 3Fe3+ + NO↑ + 2H2O

Fe + S == FeS↓

2Fe 2+ + Cl2 == 2Fe3+ + 2Cl- (向FeBr 2溶液中通入少量Cl 2) 2Fe + 4Br + 3Cl2 == 2Fe + 2Br2 + 6Cl (足量Cl 2) 2Fe 2+ + 2Br- + 2Cl2 == 2Fe3+ + Br2 + 4Cl-( 当n(FeBr2)/n(Cl2)= 1 :1时) 2+-2+2+2+2- 3+- 6Fe 2+ + 10Br- + 8Cl2 == 6Fe3+ + 5Br2 + 16Cl- (当n(FeBr2)/n(Cl2)= 3 :4时) 2Fe 2+ + 4I- + 3Cl2 == 2Fe3+ + 2I2 + 6Cl- (向FeI 2溶液中足量Cl 2) 2Fe 2+ + 6I- + 4Cl2 == 2Fe3+ + 3I2 + 8Cl- (当n(FeI2)/n(Cl2)= 3 :4时)

Fe + 3OH == Fe(OH)3↓

2Fe 3+ + Cu == 2Fe2+ + Cu2+

3+ 2+2Fe + Fe == 3Fe

Fe 3+ + 3HCO3- == Fe(OH)3↓ + 3CO2↑

Fe + 3AlO2 + 6H2O == Fe(OH)3↓+ 3Al(OH)3↓

2Fe 3+ + 3CO32- + 3H2O == 2Fe(OH)3↓ + 3CO2↑

2Fe + H2S == 2Fe + S↓+ 2H

3+2-2+2Fe + S == 2Fe + S↓

2Fe 3+ + 2I- == 2Fe2+ + I2

2Fe + SO2 + 2H2O == 2Fe + SO4 + 4H

Fe + 3SCN == Fe(SCN)3(红色溶液)

Fe + 6C6H 5OH == [Fe(C6H 5O) 6](紫色溶液) + 6H

Fe 3+ + 3H2

O Fe(OH)3(胶体) + 3H+

FeO + 2H+ == Fe2+ + H2O

Fe 2O 3 + 6H+ == Fe3+ + 3H2O

Fe 3O 4 + 8H == Fe + 2Fe + 4H2O

FeS + 2H+ ==Fe2+ + H2S↑

H + + OH- = H2O

2H 2O + 2Na = 2Na +2OH + H2↑

2H 2O + 2Na2O 2 = 4Na+ +4OH- + O2↑

H 2O + Na2O = 2Na +2OH

H 2O + Cl2 == Cl- + H+ + HclO

H 2O 2 + 2I- + 2H+ = I2 + 2H2O

H 2O 2 + 2Fe2+ + 2H+ == 2Fe3+ + 2H2O

5H 2O 2 + 2MnO4- + 6H+ = 2Mn2+ + 5O2↑+ 8H2O

H 2O 2 + Cl2 = 2H+ + 2Cl- + O2↑

H 2O 2 + SO2 == 2H+ + SO42-

+-H 2CO 3

H + HCO3

HCO 3-

H + + CO32-

H 2O + CO3

HCO 3- + H2

O 2-

+-+-+2+3+3+3-+ 3+-3+ 2+2-+ 3+2++3+-3+- HCO 3 + OH

H 2CO 3 + OH- --

HCO 3- + OH- == CO32- + H2O HCO 3- + H+ == CO2↑ + H2O

3HCO 3- + Al3+ == Al(OH)3↓ + 3CO2↑

3HCO 3- + Fe3+ == Fe(OH)3↓ + 3CO2↑

2HCO 3- + Ca2+ + 2OH- == CaCO3↓+2H 2O + CO32-(向NaHCO 3溶液中加入少量澄清石灰水) HCO 3- + Ca2+ + OH- == CaCO3↓ + H2O (足量澄清石灰水) HCO 3 + Ca + OH == CaCO3↓ + H2O (向Ca(HCO3) 2溶液中加入少量NaOH 溶液) 2HCO 3- + Ca2+ + 2OH- == CaCO3↓+ 2H 2O + CO32- (Ca(HCO3) 2溶液中加入足量NaOH 溶液) HCO 3+ OH == CO3 + H2O (向NH 4HCO 3溶液中加入少量NaOH 溶液)

HCO 3- + NH4+ + 2OH- == CO32- + H2O + NH3.H 2O (向NH 4HCO 3溶液中加入足量NaOH 溶液) 2HCO 3- + SO2 == SO32- + CO2↑ + H2O

HCO 3- + AlO2- + H2O == Al(OH)3↓+ CO32-

H 3PO 4

H + + H2PO 4- - -2--2+-

H 2PO 4

2-

-

H + HPO4 +3-+2-HPO 4 H + PO4

H 3PO 4 + OH- = H2PO 4- + H2O

--2-H 2PO 4 + OH = HPO4 + H2O

HPO 42- + OH- = PO43- + H2O

PO 4 + H2

O

HPO 42- + H2

O

-3- HPO 4 + OH H 2PO 4- + OH- -2--H 2PO 4 + H2

O H 3PO 4 + OH

+3-2-H + PO4 = HPO4

H + + HPO42-= H2PO 4-

H + H2PO 4 = H3PO 4

H 2

S

-

+- H + HS +2-+-HS H + S

H + + S2- = HS-

H + + HS- = H2S

H 2O + S2-

HS - + OH -

HS + H2

O H 2S + OH

H 2S + OH- == HS- + H2O

HS - + OH- == S2- + H2O

H 2S + Cl2 == 2Cl + 2H + S↓

2H 2S + SO2 == 3S↓ + 2H2O

2H 2S + O2 == 2S↓ + 2H2O

H 2S + Cu2+ == 2H+ + CuS↓

H 2S + (CH3COO) 2Pb== PbS↓ + 2CH3COOH

H 2S + 2OH- == S2- + 2H2O

3HS - + Al3+ + 3H2O == Al(OH)3↓ + 3H2S↑

H 2SO 3

H + + HSO3-

HSO 3-

H + + SO32-

--HSO 3 + H2

O H 2SO 3 + OH

HSO 3- + OH- == SO32- + H2O

HSO 3 + H == SO2↑ + H2O

H 2SO 3 + Cl2 + H2O == 2Cl- + SO42- + 4H+

2I - + 2Fe3+ == 2Fe2+ + I2

2I - + Cl2 == 2Cl- + I2

2I - + Br2 == 2Br- + I2

I - + Ag+ = AgI↓

2I - + H2O 2 + 2H+ = I2 + 2H2O

2Li + 2H2O == 2Li + 2OH + H2↑

Mg + 2H+ == Mg2+ + H2↑

Mg + 2OH = Mg(OH)2↓

Mg 2+ + CO32- = MgCO3↓

MgCO 3 + 2H+ = Mg2+ + CO2↑+ H2O

MgO + 2H+ == Mg2+ + H2O

Mg(OH)2 + 2H+ = Mg2+ + 2H2O 2+-+--+-+--

MnO 2 + 2Cl + 4H == Mn + Cl2↑+ 2H2O

MnO 4 + 5Fe + 8H == 5Fe + Mn 4H2O

2KMnO 4- + 5H2O 2 + 6H+ == 2Mn2+ + 5O2↑ + 8H2O

-+2+12MnO 4 + 5C2H 4 + 36H == 12Mn + 10CO2↑ + 28H2O

2MnO 4- + 5C2O 42- + 16H+ == 2Mn2+ + 10CO2↑ + 8H2O

2Na + 2H2O == 2Na + 2OH + H2↑

2Na + Cu2+ + 2H2O == 2Na+ + Cu(OH)2↓+ H2↑

NH 4 + H2

O NH 3.H 2O + H

+2-2NH 4 + SiO3 + H2O == H4SiO 4↓ + 2NH3↑

NH 4+ + AlO2- + H2O == Al(OH)3↓ + NH3↑

NH 4 + HCO3+ 2OH == CO3 + H2O + NH3.H 2O (向NH 4HCO 3溶液中加入足量NaOH 溶液) NH 3 + H2

O NH 3.H 2O

+--+2+-2++3+2++-+++- -2-NH 3.H 2

O NH 4 + OH

NH 3.H 2O + Ag+ == AgOH↓+ NH4+ ;2AgOH == Ag2O + H2O (AgNO3溶液中加入少量氨水) 2NH 3.H 2O + Ag+ == [Ag(NH3) 2]+ + H2O (足量氨水) : 2NH 3.H 2O + Cu2+ == Cu(OH)2↓+ 2NH4+ (向CuSO 4溶液中加入少量氨水) :

4NH 3.H 2O + Cu == [Cu(NH3) 4] + 4H2O (足量氨水) : 2NH 3.H 2O + Zn2+ == Zn(OH)2↓+ 2NH4+ (向ZnCl 2溶液中加入少量氨水)

4NH 3.H 2O + Zn2+ == [Zn(NH3) 4]2+ + 4H2O ( 足量氨水) : 3NH 3.H 2O + Al == Al(OH)3↓+ 3NH4

NO 3- + 3Fe2+ + 4H+ == 3Fe3+ + NO↑ + 2H2O

2NO 3 + 3SO2 + 2H2O == 3SO4 + 2NO↑ + 4H

2NO 3- + 3Cu + 8H+ == 3Cu2+ + 2NO↑+ 4H2O

OH - + H+ = H2O

OH - + CO2 == HCO3-

O 2 + 2H2S == 2S↓+ 2H2O

O 2 + 2S2- + 4H+ = S↓+ 2H2O

O 2 + 2HS- + 2H+ = S↓+ 2H2O

2++3+O 2 + 4Fe + 4H = Fe + 2H2O

3O 2 + 12Fe2+ + 6H2O = 8Fe3+ + 4Fe(OH)3↓

O 2 + 2SO3 == 2SO4

O 3 + 2I- + 2H+ == I2 + O2 + H2O

PO 43- + 3Ag+ = Ag3PO 4↓

2PO 43- + 3Ca2+ = Ca3(PO4) 2↓

PO 43- + H+ = HPO42-

PO 43- + 2H+ = H2PO 4-

PO 43- + 3H+ = H3PO 4

Pb + SO4 = PbSO4↓

Pb 2+ + S2- = PbS↓

PbO 2 + 2Cl + 4H == Pb + Cl2↑+ 2H2O

(CH3COO) 2Pb + H2S== PbS↓ + 2CH3COOH

3S + 6OH- = 2S2- + SO32- + 3H2O

S 2- + H2

O HS - + OH-

3S 2- + 2Al3+ + 6H2O == 2Al(OH)3↓ + 3H2S↑ -+2+2+2-2-2--2+2+3++ 2-+

S + 2Fe == 2Fe + S↓

SO 2 + Ca + 2ClO + H2O == CaSO4↓ + HClO + H + Cl (少量SO 2)

2SO 2 + Ca2+ + 2ClO- + 4H2O ==CaSO4↓ + 2Cl- + 4H+ + SO42- (足量SO 2)

3+ 2+2-+SO 2 + 2Fe+ 2H2O == 2Fe + SO4 + 4H

SO 2 + 2HCO3- == SO32- + CO2↑ + H2O

SO 2 + 2OH == SO3 + H2O

SO 2 + OH- == HSO3-

SO 2 + Br2 + 2H2O == 2Br + 2H + SO4

-+2-SO 2 + I2 + 2H2O == 2I + 2H + SO4

SO 2 + H2O 2 == 2H+ + SO42-

3SO 2 + 2NO3 + 2H2O == 3SO4 + 2NO↑ + 4H

SO 2 + ClO + H2O == 2H + Cl + SO4

SO 2 + 2H2S == 3S↓ + 2H2O

SO 2 + H2

O H 2SO 3

5SO 2 + 2MnO4- + 2H2O == 2Mn2+ + 5SO42- + 4H+

SO 32- + 2H+ == SO2↑+ H2O

SO 3 + H2

O HSO 3 + OH

SO 42- + Ba2+ == BaSO4↓

SO 42- + 2H+ + Ba2+ + 2OH- == BaSO4↓+ 2H 2O ( NaHSO 4溶液中加Ba(OH)2,使溶液呈中性) SO 4 + H + Ba + OH== BaSO4↓+ H2O (NaHSO 4溶液中加Ba(OH)2,使Ba 全部沉淀) S 2O 32- + 2H+ == S↓ + SO2↑ + H2O

Si + 2OH + H2O == SiO3 + 2H2↑

SiO 2 + 2OH- == SiO32- + H2O

SiO 32- + 2NH4+ + H2O == H4SiO 4↓ + 2NH3↑

SiO 32- + CO2 + 2H2O == H4SiO 4↓+ CO32-

SiO 32- + 2H+ + H2O == H4SiO 4↓

3SiO 32- + 2Fe3+ == Fe2(SiO3) 2↓

3SiO 32- + 2Al3+ == Al2(SiO3) 2↓

+2+Zn + 2H == Zn + H2↑

Zn + 2Fe3+ == 2Fe2+ + Zn2+ (少量Zn 片) 3Zn + 2Fe == 2Fe + 3Zn (过量Zn 片) 3+2+-2-2-+2+-2+2------2-3+2+2+-+-2--+2- 2-++-2-

高中化学常考离子反应方程式归纳

2Al + 6H == 2Al + 3H2↑

2Al + 2OH- + 2H2O == 2AlO2- + 3H2↑

Al + 3H2

O Al(OH)3 + 3H

Al 3+ + 3OH- == Al(OH)3↓

Al + 4OH == AlO2 + 2H2O

3+--3Al + 10OH == 2Al(OH)3↓ + AlO2 + 2H2O (当n(AlCl3)/n(NaOH)= 3 :10时) Al 3+ + 3NH3.H 2O == Al(OH)3↓+ 3NH4+

2Al + 3CO3 + 3H2O == 2Al(OH)3↓ + 3CO2↑

Al + 3HCO3 == Al(OH)3↓ + 3CO2↑

Al + 3HS + 3H2O == Al(OH)3↓ + 3H2S↑

2Al 3+ + 3S2- + 6H2O == 2Al(OH)3↓ + 3H2S↑

Al 3+ + 3AlO2- + 6H2O== 4Al(OH)3↓

2Al 3+ + 3SiO32- == Al2(SiO3) 2↓

AlO 2 + 2H2

O Al(OH)3 + OH

AlO 2- + H+ + H2O == Al(OH)3↓

AlO 2- + 4H+ == Al3+ + 2H2O

9AlO 2 + 30H == 2Al(OH)3↓ + 7Al + 12H2O (当n(NaAlO2)/n(HCl)= 3 :10时) 3AlO 2- + Fe3+ + 6H2O == Fe(OH)3↓+ 3Al(OH)3↓

AlO 2 + NH4 +H2O == Al(OH)3↓ + NH3↑

AlO 2- + HCO3- + H2O == Al(OH)3↓+ CO32-

2AlO 2- + CO2 + 3H2O ==2 Al(OH)3↓+ CO32-

AlO 2- + CO2 + 2H2O == Al(OH)3↓+ HCO3-

Al 2O 3 + 6H+ == 2Al3+ + 3H2O

Al 2O 3 + 2OH- == 2AlO2- + H2O

Al(OH)3 + 3H+ == Al3+ + 2H2O

--Al(OH)3 + 2OH == AlO2 + 2H2O

Ag + + H2

O AgOH + H+

Ag + NH3.H 2O == AgOH↓+ NH4 ;

Ag + + 2NH3.H 2O == [Ag(NH3) 2]+ + H2O

Ag + + Cl- == AgCl↓

Ag + + Br- == AgBr↓

Ag + + I- == AgI↓

3Ag + + PO43- == Ag3PO 4↓

2Ag + + CO32- == Ag2CO 3↓

Ag 2CO 3 + 2H == 2Ag + CO2↑ + H2O

Ag 3PO 4 + 3H+ == 3Ag+ + H3PO 4

2Ag[(NH3) 2] + 2OH + CH3CHO

+--+3+3++3+--3+2--3+3+---+3+-++++++- CH 3COO + NH4 + 2Ag↓ + 3NH3 + H2O -+2Ag[(NH3) 2] + 2OH + CH2OH(CHOH)4CHO

Ba 2+ + SO42- = BaSO4↓

Ba 2+ + CO32- = BaCO3↓

3Ba 2+ + 2PO43- = Ba3(PO4) 2↓ CH 2OH(CHOH)4COO + NH4 + 2Ag↓ + 3NH3 + H2O -+

Ba + 2OH + CO2 == BaCO3↓ + H2O

Ba 2+ + 2OH- + 2H+ + SO42- == BaSO4↓+ 2H 2O ( NaHSO 4溶液中加Ba(OH)2,使溶液呈中性) 2+-+2-2+Ba + OH + H + SO4== BaSO4↓+ H2O (NaHSO 4溶液中加Ba(OH)2,使Ba 全部沉淀) BaCO 3 + 2H+ == Ca2+ + CO2↑+ H2O

2Br + Cl2 = 2Cl + Br2

Br 2 + SO2 +2H2O == 2Br- + 2H+ + SO42-

4Br + 2Fe + 3Cl2 == 2Fe + 2Br2 + 6Cl (足量Cl 2) -2+3+-2Br + 2Fe + 2Cl2 == 2Fe + Br2 + 4Cl(当n(FeBr2)/n(Cl2)= 1 :1时) 10Br - + 6Fe2+ + 8Cl2 == 6Fe3+ + 5Br2 + 16Cl- ( 当n(FeBr2)/n(Cl2)= 3 :4时) CO 3 + 2Ag== Ag2CO 3↓

CO 3 + Ba== BaCO3↓

CO 3 + Ca== CaCO3↓

CO 32- + 2H+== CO2↑+ H2O

CO 32- + H2

O HCO 3- + OH-

3CO 32- + 2Al3+ + 3H2O == 2Al(OH)3↓ + 3CO2↑

3CO 3 + 2Fe +3H2O == 2Fe(OH)3↓ + 3CO2↑

CO 2 + 2AlO2- + 3H2O ==2 Al(OH)3↓+ CO32-

CO 2 + AlO2- + 2H2O == Al(OH)3↓+ HCO3-

CO 2 + OH == HCO3

CO 2 + Ba2+ + 2OH-== BaCO3↓ + H2O

CO 2 + 2OH == CO3 + H2O

3CO 2 + 5OH- == 2CO32- + HCO3- + 2H2O (当n(CO2)/n(NaOH)= 3 :5时) CO 2 + SiO32- + 2H2O == H4SiO 4↓+ CO32-

Ca 2+ + 2OH- + CO2 == CaCO3↓ + H2O -2--- 2-3+2-2+2-2+2-+-2+- --2+3+-

Ca 2+ + 2OH- + SO2 == CaSO3↓ + H2O

Ca 2+ + 2ClO- + SO2 + H2O == CaSO4↓ + HClO + H+ + Cl- (少量SO 2)

Ca 2+ + 2ClO- + 2SO2 + 4H2O ==CaSO4↓ + 2Cl - + 4H+ + SO42- (足量SO 2)

2+-Ca + 2ClO + CO2 + H2O == CaCO3↓ + 2HClO

CaCO 3 + 2H+ == Ca2+ + CO2↑+ H2O

Cl 2 + H2O == Cl + H + HClO

Cl 2 + 2OH- == Cl- + ClO- + H2O

Cl 2 + 2OH- == Cl- + ClO- + H2O

Cl 2 + 2I- == 2Cl- + I2

Cl 2 + H2SO 3 + H2O == 2Cl- + SO42- + 4H+

Cl 2 + H2S == 2Cl- + 2H+ + S↓

Cl 2 + 2Fe2+ == 2Fe3+ + 2Cl-(向FeBr 2溶液中少量Cl 2) 3Cl 2 + 2Fe + 4Br == 2Fe + 2Br2 + 6Cl(足量Cl 2) 2Cl 2 + 2Fe2+ + 2Br- == 2Fe3+ + Br2 + 4Cl- (当n(FeBr2)/n(Cl2)= 1 :1时) 8Cl 2 + 6Fe + 10Br== 6Fe + 5Br2 + 16Cl (当n(FeBr2)/n(Cl2)= 3 :4时) Cl 2 + 2I- == 2Cl- + I2

Cl 2 + 2I- == I2 + 2Cl-(向FeI 2溶液中通入少量Cl 2) 3Cl 2 + 2Fe2+ + 4I-== 2Fe3+ + 2I2 + 6Cl- (足量Cl 2) 4Cl 2 + 2Fe2+ + 6I- == 2Fe3+ + 3I2 + 8Cl- (当n(FeI2)/n(Cl2)= 3 :4时) 2+--+2+-3+- 3+-

2Cl + 4H + MnO2== Mn + Cl2↑+ 2H2O

Cl + Ag == AgCl↓

ClO - + H+ == HClO

-+-2-ClO + SO2 +H2O == 2H + Cl + SO4

ClO - + H2

O HClO + OH-

Cu + 2Fe == 2Fe + Cu

3Cu + 2NO3- + 8H+ == 3Cu2+ + 2NO↑+ 4H2O

2+Cu + 2H2

O

2+

2+

2+3+2+2+--+2++ Cu(OH)2 + 2H 2++Cu 2+ + 2NH3.H 2O == Cu(OH)2↓+ 2NH4+ Cu + 4NH3.H 2O == [Cu(NH3) 4] + 4H2O Cu + 2Na + 2H2O == 2Na + Cu(OH)2↓+ H2↑ Cu + H2S == 2H + CuS↓

Cu 2+ + Fe == Cu + Fe2+

Cu 2+ + 2OH- == Cu(OH)2↓

CuO + 2H+ == Cu2+ + H2O

C 6H 5O + H2

O C 6H 5OH + OH

C 6H 5O - + CO2 == C6H 5OH + HCO3-

6C 6H 5OH + Fe 3+ == [Fe(C6H 5O) 6]3-(紫色溶液) + 6H+

CH 3CHO + 2Ag[(NH3) 2] + 2OH

+- ++--CH 3COO + NH4 + 2Ag↓ + 3NH3 + H2O -+

CH 3CHO + 2Cu(OH)

2 CH 3COOH + Cu2O ↓ + 2H2O

2CH 3COOH + CaCO3 == 2CH3COO - + Ca2+ + CO2↑ + H2O

CH 2OH(CHOH)4CHO + 2Ag[(NH3) 2]+ + 2OH

- CH 2OH(CHOH)4COO - + NH4+ + 2Ag↓ + 3NH3 + H2O CH 2OH(CHOH)4CHO + 2Cu(OH)

2 CH 2OH(CHOH)4COOH + Cu2O ↓ + 2H2O

5C 2H 4 + 12MnO4- + 36H+ == 12Mn2+ + 10CO2↑ + 28H2O

5C 2O 42- + 2MnO4- + 16H+ == 2Mn2+ + 10CO2↑ + 8H2O

2F 2 + 2H2O == 4HF + O2↑

Fe + 2H+ = Fe2+ + H2↑

Fe + Cu = Fe + Cu

Fe + 2Fe3+ == 3Fe2+

Fe 2+ + 2OH- == Fe(OH)2↓

2Fe 2+ + Cl2 == 2Fe3+ + 2Cl-

2Fe 2+ + Br2 == 2Fe3+ + 2Br-

2Fe 2+ + H2O 2 + 2H+ == 2Fe3+ + 2H2O

3Fe 2+ + NO3- + 4H+ == 3Fe3+ + NO↑ + 2H2O

Fe + S == FeS↓

2Fe 2+ + Cl2 == 2Fe3+ + 2Cl- (向FeBr 2溶液中通入少量Cl 2) 2Fe + 4Br + 3Cl2 == 2Fe + 2Br2 + 6Cl (足量Cl 2) 2Fe 2+ + 2Br- + 2Cl2 == 2Fe3+ + Br2 + 4Cl-( 当n(FeBr2)/n(Cl2)= 1 :1时) 2+-2+2+2+2- 3+- 6Fe 2+ + 10Br- + 8Cl2 == 6Fe3+ + 5Br2 + 16Cl- (当n(FeBr2)/n(Cl2)= 3 :4时) 2Fe 2+ + 4I- + 3Cl2 == 2Fe3+ + 2I2 + 6Cl- (向FeI 2溶液中足量Cl 2) 2Fe 2+ + 6I- + 4Cl2 == 2Fe3+ + 3I2 + 8Cl- (当n(FeI2)/n(Cl2)= 3 :4时)

Fe + 3OH == Fe(OH)3↓

2Fe 3+ + Cu == 2Fe2+ + Cu2+

3+ 2+2Fe + Fe == 3Fe

Fe 3+ + 3HCO3- == Fe(OH)3↓ + 3CO2↑

Fe + 3AlO2 + 6H2O == Fe(OH)3↓+ 3Al(OH)3↓

2Fe 3+ + 3CO32- + 3H2O == 2Fe(OH)3↓ + 3CO2↑

2Fe + H2S == 2Fe + S↓+ 2H

3+2-2+2Fe + S == 2Fe + S↓

2Fe 3+ + 2I- == 2Fe2+ + I2

2Fe + SO2 + 2H2O == 2Fe + SO4 + 4H

Fe + 3SCN == Fe(SCN)3(红色溶液)

Fe + 6C6H 5OH == [Fe(C6H 5O) 6](紫色溶液) + 6H

Fe 3+ + 3H2

O Fe(OH)3(胶体) + 3H+

FeO + 2H+ == Fe2+ + H2O

Fe 2O 3 + 6H+ == Fe3+ + 3H2O

Fe 3O 4 + 8H == Fe + 2Fe + 4H2O

FeS + 2H+ ==Fe2+ + H2S↑

H + + OH- = H2O

2H 2O + 2Na = 2Na +2OH + H2↑

2H 2O + 2Na2O 2 = 4Na+ +4OH- + O2↑

H 2O + Na2O = 2Na +2OH

H 2O + Cl2 == Cl- + H+ + HclO

H 2O 2 + 2I- + 2H+ = I2 + 2H2O

H 2O 2 + 2Fe2+ + 2H+ == 2Fe3+ + 2H2O

5H 2O 2 + 2MnO4- + 6H+ = 2Mn2+ + 5O2↑+ 8H2O

H 2O 2 + Cl2 = 2H+ + 2Cl- + O2↑

H 2O 2 + SO2 == 2H+ + SO42-

+-H 2CO 3

H + HCO3

HCO 3-

H + + CO32-

H 2O + CO3

HCO 3- + H2

O 2-

+-+-+2+3+3+3-+ 3+-3+ 2+2-+ 3+2++3+-3+- HCO 3 + OH

H 2CO 3 + OH- --

HCO 3- + OH- == CO32- + H2O HCO 3- + H+ == CO2↑ + H2O

3HCO 3- + Al3+ == Al(OH)3↓ + 3CO2↑

3HCO 3- + Fe3+ == Fe(OH)3↓ + 3CO2↑

2HCO 3- + Ca2+ + 2OH- == CaCO3↓+2H 2O + CO32-(向NaHCO 3溶液中加入少量澄清石灰水) HCO 3- + Ca2+ + OH- == CaCO3↓ + H2O (足量澄清石灰水) HCO 3 + Ca + OH == CaCO3↓ + H2O (向Ca(HCO3) 2溶液中加入少量NaOH 溶液) 2HCO 3- + Ca2+ + 2OH- == CaCO3↓+ 2H 2O + CO32- (Ca(HCO3) 2溶液中加入足量NaOH 溶液) HCO 3+ OH == CO3 + H2O (向NH 4HCO 3溶液中加入少量NaOH 溶液)

HCO 3- + NH4+ + 2OH- == CO32- + H2O + NH3.H 2O (向NH 4HCO 3溶液中加入足量NaOH 溶液) 2HCO 3- + SO2 == SO32- + CO2↑ + H2O

HCO 3- + AlO2- + H2O == Al(OH)3↓+ CO32-

H 3PO 4

H + + H2PO 4- - -2--2+-

H 2PO 4

2-

-

H + HPO4 +3-+2-HPO 4 H + PO4

H 3PO 4 + OH- = H2PO 4- + H2O

--2-H 2PO 4 + OH = HPO4 + H2O

HPO 42- + OH- = PO43- + H2O

PO 4 + H2

O

HPO 42- + H2

O

-3- HPO 4 + OH H 2PO 4- + OH- -2--H 2PO 4 + H2

O H 3PO 4 + OH

+3-2-H + PO4 = HPO4

H + + HPO42-= H2PO 4-

H + H2PO 4 = H3PO 4

H 2

S

-

+- H + HS +2-+-HS H + S

H + + S2- = HS-

H + + HS- = H2S

H 2O + S2-

HS - + OH -

HS + H2

O H 2S + OH

H 2S + OH- == HS- + H2O

HS - + OH- == S2- + H2O

H 2S + Cl2 == 2Cl + 2H + S↓

2H 2S + SO2 == 3S↓ + 2H2O

2H 2S + O2 == 2S↓ + 2H2O

H 2S + Cu2+ == 2H+ + CuS↓

H 2S + (CH3COO) 2Pb== PbS↓ + 2CH3COOH

H 2S + 2OH- == S2- + 2H2O

3HS - + Al3+ + 3H2O == Al(OH)3↓ + 3H2S↑

H 2SO 3

H + + HSO3-

HSO 3-

H + + SO32-

--HSO 3 + H2

O H 2SO 3 + OH

HSO 3- + OH- == SO32- + H2O

HSO 3 + H == SO2↑ + H2O

H 2SO 3 + Cl2 + H2O == 2Cl- + SO42- + 4H+

2I - + 2Fe3+ == 2Fe2+ + I2

2I - + Cl2 == 2Cl- + I2

2I - + Br2 == 2Br- + I2

I - + Ag+ = AgI↓

2I - + H2O 2 + 2H+ = I2 + 2H2O

2Li + 2H2O == 2Li + 2OH + H2↑

Mg + 2H+ == Mg2+ + H2↑

Mg + 2OH = Mg(OH)2↓

Mg 2+ + CO32- = MgCO3↓

MgCO 3 + 2H+ = Mg2+ + CO2↑+ H2O

MgO + 2H+ == Mg2+ + H2O

Mg(OH)2 + 2H+ = Mg2+ + 2H2O 2+-+--+-+--

MnO 2 + 2Cl + 4H == Mn + Cl2↑+ 2H2O

MnO 4 + 5Fe + 8H == 5Fe + Mn 4H2O

2KMnO 4- + 5H2O 2 + 6H+ == 2Mn2+ + 5O2↑ + 8H2O

-+2+12MnO 4 + 5C2H 4 + 36H == 12Mn + 10CO2↑ + 28H2O

2MnO 4- + 5C2O 42- + 16H+ == 2Mn2+ + 10CO2↑ + 8H2O

2Na + 2H2O == 2Na + 2OH + H2↑

2Na + Cu2+ + 2H2O == 2Na+ + Cu(OH)2↓+ H2↑

NH 4 + H2

O NH 3.H 2O + H

+2-2NH 4 + SiO3 + H2O == H4SiO 4↓ + 2NH3↑

NH 4+ + AlO2- + H2O == Al(OH)3↓ + NH3↑

NH 4 + HCO3+ 2OH == CO3 + H2O + NH3.H 2O (向NH 4HCO 3溶液中加入足量NaOH 溶液) NH 3 + H2

O NH 3.H 2O

+--+2+-2++3+2++-+++- -2-NH 3.H 2

O NH 4 + OH

NH 3.H 2O + Ag+ == AgOH↓+ NH4+ ;2AgOH == Ag2O + H2O (AgNO3溶液中加入少量氨水) 2NH 3.H 2O + Ag+ == [Ag(NH3) 2]+ + H2O (足量氨水) : 2NH 3.H 2O + Cu2+ == Cu(OH)2↓+ 2NH4+ (向CuSO 4溶液中加入少量氨水) :

4NH 3.H 2O + Cu == [Cu(NH3) 4] + 4H2O (足量氨水) : 2NH 3.H 2O + Zn2+ == Zn(OH)2↓+ 2NH4+ (向ZnCl 2溶液中加入少量氨水)

4NH 3.H 2O + Zn2+ == [Zn(NH3) 4]2+ + 4H2O ( 足量氨水) : 3NH 3.H 2O + Al == Al(OH)3↓+ 3NH4

NO 3- + 3Fe2+ + 4H+ == 3Fe3+ + NO↑ + 2H2O

2NO 3 + 3SO2 + 2H2O == 3SO4 + 2NO↑ + 4H

2NO 3- + 3Cu + 8H+ == 3Cu2+ + 2NO↑+ 4H2O

OH - + H+ = H2O

OH - + CO2 == HCO3-

O 2 + 2H2S == 2S↓+ 2H2O

O 2 + 2S2- + 4H+ = S↓+ 2H2O

O 2 + 2HS- + 2H+ = S↓+ 2H2O

2++3+O 2 + 4Fe + 4H = Fe + 2H2O

3O 2 + 12Fe2+ + 6H2O = 8Fe3+ + 4Fe(OH)3↓

O 2 + 2SO3 == 2SO4

O 3 + 2I- + 2H+ == I2 + O2 + H2O

PO 43- + 3Ag+ = Ag3PO 4↓

2PO 43- + 3Ca2+ = Ca3(PO4) 2↓

PO 43- + H+ = HPO42-

PO 43- + 2H+ = H2PO 4-

PO 43- + 3H+ = H3PO 4

Pb + SO4 = PbSO4↓

Pb 2+ + S2- = PbS↓

PbO 2 + 2Cl + 4H == Pb + Cl2↑+ 2H2O

(CH3COO) 2Pb + H2S== PbS↓ + 2CH3COOH

3S + 6OH- = 2S2- + SO32- + 3H2O

S 2- + H2

O HS - + OH-

3S 2- + 2Al3+ + 6H2O == 2Al(OH)3↓ + 3H2S↑ -+2+2+2-2-2--2+2+3++ 2-+

S + 2Fe == 2Fe + S↓

SO 2 + Ca + 2ClO + H2O == CaSO4↓ + HClO + H + Cl (少量SO 2)

2SO 2 + Ca2+ + 2ClO- + 4H2O ==CaSO4↓ + 2Cl- + 4H+ + SO42- (足量SO 2)

3+ 2+2-+SO 2 + 2Fe+ 2H2O == 2Fe + SO4 + 4H

SO 2 + 2HCO3- == SO32- + CO2↑ + H2O

SO 2 + 2OH == SO3 + H2O

SO 2 + OH- == HSO3-

SO 2 + Br2 + 2H2O == 2Br + 2H + SO4

-+2-SO 2 + I2 + 2H2O == 2I + 2H + SO4

SO 2 + H2O 2 == 2H+ + SO42-

3SO 2 + 2NO3 + 2H2O == 3SO4 + 2NO↑ + 4H

SO 2 + ClO + H2O == 2H + Cl + SO4

SO 2 + 2H2S == 3S↓ + 2H2O

SO 2 + H2

O H 2SO 3

5SO 2 + 2MnO4- + 2H2O == 2Mn2+ + 5SO42- + 4H+

SO 32- + 2H+ == SO2↑+ H2O

SO 3 + H2

O HSO 3 + OH

SO 42- + Ba2+ == BaSO4↓

SO 42- + 2H+ + Ba2+ + 2OH- == BaSO4↓+ 2H 2O ( NaHSO 4溶液中加Ba(OH)2,使溶液呈中性) SO 4 + H + Ba + OH== BaSO4↓+ H2O (NaHSO 4溶液中加Ba(OH)2,使Ba 全部沉淀) S 2O 32- + 2H+ == S↓ + SO2↑ + H2O

Si + 2OH + H2O == SiO3 + 2H2↑

SiO 2 + 2OH- == SiO32- + H2O

SiO 32- + 2NH4+ + H2O == H4SiO 4↓ + 2NH3↑

SiO 32- + CO2 + 2H2O == H4SiO 4↓+ CO32-

SiO 32- + 2H+ + H2O == H4SiO 4↓

3SiO 32- + 2Fe3+ == Fe2(SiO3) 2↓

3SiO 32- + 2Al3+ == Al2(SiO3) 2↓

+2+Zn + 2H == Zn + H2↑

Zn + 2Fe3+ == 2Fe2+ + Zn2+ (少量Zn 片) 3Zn + 2Fe == 2Fe + 3Zn (过量Zn 片) 3+2+-2-2-+2+-2+2------2-3+2+2+-+-2--+2- 2-++-2-


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