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Équations chimiques équilibrées sur12/18/24

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C2H4O2 + O2 = C2H3O2 + H2O =>
4 C2H4O2 + O2 = 4 C2H3O2 + 2 H2O

BF3 + Li2SO3 = B2(SO3)3 + LiF =>
2 BF3 + 3 Li2SO3 = B2(SO3)3 + 6 LiF

H2C4H2O4 + NaOH = H2O + C4H2O4 + Na =>
H2C4H2O4 + 2 NaOH = 2 H2O + C4H2O4 + 2 Na

Ca(OH)2 + CO2 = Ca(HCO3)2 =>
Ca(OH)2 + 2 CO2 = Ca(HCO3)2

Na2(CO3) + H2SO4 = Na2SO4 + H2(CO3) =>
Na2(CO3) + H2SO4 = Na2SO4 + H2(CO3)

H2C4H2O4 + NaOH = H2O + HC4H2O4 + Na =>
H2C4H2O4 + NaOH = H2O + HC4H2O4 + Na

Mn2(CO)10 + Br2 = BrMn(CO)5 =>
Mn2(CO)10 + Br2 = 2 BrMn(CO)5

H2C4H2O4 + NaOH = H2O + HC4H2O4 + Na =>
H2C4H2O4 + NaOH = H2O + HC4H2O4 + Na

K2CO3 + FeBr3 = K2Br3 + CO3Fe =>
K2CO3 + FeBr3 = K2Br3 + CO3Fe

Fe + H2O2 + H{+} = Fe{+3} + H2O =>
2 Fe + 3 H2O2 + 6 H{+} = 2 Fe{+3} + 6 H2O

H2CO3 + FeSO4 = H2SO4 + FeCO3 =>
H2CO3 + FeSO4 = H2SO4 + FeCO3

CaCO3(s) + HC2H3O2(aq) = H2O + CO2(g) + Ca(aq) =>
4 CaCO3(s) + HC2H3O2(aq) = 2 H2O + 6 CO2(g) + 4 Ca(aq)

H2SO4(aq) + Ba(NO3)2 = HNO3(aq) + BaSO4(s) =>
H2SO4(aq) + Ba(NO3)2 = 2 HNO3(aq) + BaSO4(s)

CrBr3 + H2O = Cr2O3 + HBr =>
2 CrBr3 + 3 H2O = Cr2O3 + 6 HBr

LiSO4 + Na2NO3 = LiNO3 + Na2SO4 =>
LiSO4 + Na2NO3 = LiNO3 + Na2SO4

KHCO3 + Ca = Ca(HCO3)2 + K =>
2 KHCO3 + Ca = Ca(HCO3)2 + 2 K

H3BO3H2O = H5BO4 =>
H3BO3H2O = H5BO4

NaSO3 + FeSO4 + H2SO4 = Fe2(SO4)3 + NaS + H2O =>
NaSO3 + 6 FeSO4 + 3 H2SO4 = 3 Fe2(SO4)3 + NaS + 3 H2O

CuSO4*5H2O + H2O = CuSO4*6H2O =>
CuSO4*5H2O + H2O = CuSO4*6H2O

AsO2{-} + I2 + H2O = I{-} + AsO4{3-} + H{+} =>
AsO2{-} + I2 + 2 H2O = 2 I{-} + AsO4{3-} + 4 H{+}

NaH2PO4H2O = H3O + NaHPO4 =>
NaH2PO4H2O = H3O + NaHPO4

(NH4)2CO3 + AgCl = NH4Cl + Ag2CO3 =>
(NH4)2CO3 + 2 AgCl = 2 NH4Cl + Ag2CO3

N2H4 + CuCl2 + NaOH = Cu2O + N2 + NaCl + H2O =>
N2H4 + 4 CuCl2 + 8 NaOH = 2 Cu2O + N2 + 8 NaCl + 6 H2O

CuSO4 + BaCl2 = CuSO4BaCl2 =>
CuSO4 + BaCl2 = CuSO4BaCl2

H2C2O4 + NaOH = Na2C2O4 + H2O =>
H2C2O4 + 2 NaOH = Na2C2O4 + 2 H2O

Zn + HCl + SO2 = ZnCl2 + ZnO + H2S =>
3 Zn + 2 HCl + SO2 = ZnCl2 + 2 ZnO + H2S

Ag + NO3{-} + H{+} = Ag{+} + NO + H2O =>
3 Ag + NO3{-} + 4 H{+} = 3 Ag{+} + NO + 2 H2O

H2C4H2O4 + NaOH = H2O + Na2C4H2O4 =>
H2C4H2O4 + 2 NaOH = 2 H2O + Na2C4H2O4

[Cr(N2H4CO)6](CN)3 + KMnO4 + H2SO4 = K2Cr2O7 + CO2 + KNO3 + MnSO4 + K2SO4 + H2O =>
10[Cr(N2H4CO)6](CN)3 + 258 KMnO4 + 307 H2SO4 = 5 K2Cr2O7 + 90 CO2 + 150 KNO3 + 258 MnSO4 + 49 K2SO4 + 427 H2O

C2 = C4 =>
2 C2 = C4

NaHS + H2SO4 = NaHSO4 + H2S =>
NaHS + H2SO4 = NaHSO4 + H2S

B2O3Na2O = Na2OB2O3 =>
B2O3Na2O = Na2OB2O3

H2C4H2O4 + NaOH = H3O + NaC4H2O4 =>
H2C4H2O4 + NaOH = H3O + NaC4H2O4

Cu(NH3)4{2+} + S2O4{2-} + OH{-} = SO3{2-} + Cu + NH3 + H2O =>
Cu(NH3)4{2+} + S2O4{2-} + 4 OH{-} = 2 SO3{2-} + Cu + 4 NH3 + 2 H2O

C6H5CH2Cl + NaOH = C6H5CH2OH + NaCl =>
C6H5CH2Cl + NaOH = C6H5CH2OH + NaCl

K4[Fe(CN)6] + HCl = HCN + K4FeCl(CN)5 =>
K4[Fe(CN)6] + HCl = HCN + K4FeCl(CN)5

CaC2 + H2SO4 = CaSO4 + C2H2 =>
CaC2 + H2SO4 = CaSO4 + C2H2

H2C4H2O4 + NaOH = H2O + C4H2O4 + Na =>
H2C4H2O4 + 2 NaOH = 2 H2O + C4H2O4 + 2 Na

Fe + H2O2 + H{+} = Fe3{+} + H2O =>
6 Fe + H2O2 + 2 H{+} = 2 Fe3{+} + 2 H2O

H2C4H2O4 + NaOH = H2O + C4H2O4 + Na =>
H2C4H2O4 + 2 NaOH = 2 H2O + C4H2O4 + 2 Na

(N3H12)PO4 = H3PO4 + NH3 =>
(N3H12)PO4 = H3PO4 + 3 NH3

H2O2 + C6H10O5 = CO2 + H2 =>
7 H2O2 + 2 C6H10O5 = 12 CO2 + 17 H2

C2H5COOH + PCl3 = C2H5CO + POCl2 + HCl =>
C2H5COOH + PCl3 = C2H5CO + POCl2 + HCl

Li2SiO3 + AgHCO3 = Ag2SiO3 + LiHCO3 =>
Li2SiO3 + 2 AgHCO3 = Ag2SiO3 + 2 LiHCO3

H2O + Li2S + Cr(NO3)3 = LiNO3 + Cr2O3 + H2S =>
3 H2O + 3 Li2S + 2 Cr(NO3)3 = 6 LiNO3 + Cr2O3 + 3 H2S

P4O10(g) + C(s) = P4(g) + CO(g) =>
P4O10(g) + 10 C(s) = P4(g) + 10 CO(g)

Al + Fe1O3 = Al2O3 + Fe =>
2 Al + Fe1O3 = Al2O3 + Fe

H2Se + H2O = H3O + Se =>
H2Se + 2 H2O = 2 H3O + Se

H2C4H2O4 + NaOH = H3O + NaC4H2O4 =>
H2C4H2O4 + NaOH = H3O + NaC4H2O4

Pb + H2SO4 = Pb(SO4) + H2 =>
Pb + H2SO4 = Pb(SO4) + H2

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