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Équations chimiques équilibrées sur12/20/23

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C2H4 + HBr = C2H5Br =>
C2H4 + HBr = C2H5Br

CaCl2 + Na2CO3 = CaCO3 + NaCl =>
CaCl2 + Na2CO3 = CaCO3 + 2 NaCl

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

(NH4)2S + NaOH = (NH4)OH + Na2S =>
(NH4)2S + 2 NaOH = 2(NH4)OH + Na2S

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

C2H4 + Br2 = C2H4Br2 =>
C2H4 + Br2 = C2H4Br2

Cu5FeS2 + O2 = CuO + Fe2O3 + SO2 =>
4 Cu5FeS2 + 21 O2 = 20 CuO + 2 Fe2O3 + 8 SO2

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

Nb2O5 + C = Nb2C + CO2 =>
2 Nb2O5 + 7 C = 2 Nb2C + 5 CO2

Cu + HBr = CuBr + H =>
Cu + HBr = CuBr + H

(CH3)2 + O2 = CH2 + H2O =>
2(CH3)2 + O2 = 4 CH2 + 2 H2O

Fe + MgCl2 + H2O = FeCl + Mg(OH) + H2 =>
4 Fe + 2 MgCl2 + 2 H2O = 4 FeCl + 2 Mg(OH) + H2

KClO3 + NaBr + H2SO4 = Na2SO4 + KCl + Br2 + H2O =>
KClO3 + 6 NaBr + 3 H2SO4 = 3 Na2SO4 + KCl + 3 Br2 + 3 H2O

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

FeO(OH) + C2H2O4 = H2O + C6Fe2O12 =>
2 FeO(OH) + 3 C2H2O4 = 4 H2O + C6Fe2O12

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

I + H2O = HIO3 + H =>
I + 3 H2O = HIO3 + 5 H

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

C6H4 + O7 = CO2 + H2O =>
C6H4 + 2 O7 = 6 CO2 + 2 H2O

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

C2H4 + Br2 = C2H4Br2 =>
C2H4 + Br2 = C2H4Br2

CaF2 + AlH3 = AlF3 + CaH2 =>
3 CaF2 + 2 AlH3 = 2 AlF3 + 3 CaH2

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

(NH4)2Fe(SO4)2 + K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + (NH4)2SO4 + K2SO4 =>
3(NH4)2Fe(SO4)2 + 2 K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + 3(NH4)2SO4 + 3 K2SO4

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

Pb(OH)2NaOH = PbOHNa(OH)2 =>
Pb(OH)2NaOH = PbOHNa(OH)2

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

CH4 = C2H2 + H2 =>
2 CH4 = C2H2 + 3 H2

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

UO2Cl2 + K4(Fe(CN)6) = (UO2)2(Fe(CN)6) + KCl =>
2 UO2Cl2 + K4(Fe(CN)6) = (UO2)2(Fe(CN)6) + 4 KCl

Mg3N2 + CuSO4 = Mg3SO4 + CuN2 =>
Mg3N2 + CuSO4 = Mg3SO4 + CuN2

CaF2 + NaF + AlF3 + NiF2 = CaNa3AlNi3F14 =>
CaF2 + 3 NaF + AlF3 + 3 NiF2 = CaNa3AlNi3F14

C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O =>
C6H4(NH2)COOH + CH3OH = C8H9NO2 + H2O

S4O6{-2} + MnO4{-} + OH{-} = MnO2 + SO4{-2} + H2O =>
3 S4O6{-2} + 14 MnO4{-} + 4 OH{-} = 14 MnO2 + 12 SO4{-2} + 2 H2O

K2Cr2O7 + NaBr + H2SO4 = Br2 + K2SO4 + Na2SO4 + H2O + Cr2(SO4)3 =>
K2Cr2O7 + 6 NaBr + 7 H2SO4 = 3 Br2 + K2SO4 + 3 Na2SO4 + 7 H2O + Cr2(SO4)3

C4H8 + H2O + KMnO4 = KOH + MnO2 + C4H10O2 =>
3 C4H8 + 4 H2O + 2 KMnO4 = 2 KOH + 2 MnO2 + 3 C4H10O2

KMnO4 + CH3COH = CH3COOK + CH3COOH + MnO2 + KOH =>
2 KMnO4 + 3 CH3COH = CH3COOK + 2 CH3COOH + 2 MnO2 + KOH

H3PO4 + CsOH = CsPO4 + H3OH =>
H3PO4 + CsOH = CsPO4 + H3OH

FeCl2 + (NH4)2S = FeS + (NH4)2Cl2 =>
FeCl2 + (NH4)2S = FeS + (NH4)2Cl2

HCl + CH3COO = CH3COOH + Cl =>
HCl + CH3COO = CH3COOH + Cl

K2Cr2O7 + H2SO4 + NaBr = K2SO4 + Cr2(SO4)3 + Na2SO4 + H2O + Br =>
K2Cr2O7 + 7 H2SO4 + 6 NaBr = K2SO4 + Cr2(SO4)3 + 3 Na2SO4 + 7 H2O + 6 Br

HCl + CH3COO = CH3COOH + Cl =>
HCl + CH3COO = CH3COOH + Cl

MnO + PbO2 + HCl = HMnO4 + PbCl2 + H2O =>
2 MnO + 5 PbO2 + 10 HCl = 2 HMnO4 + 5 PbCl2 + 4 H2O

CuCl2*2H2O + Ca = CaCl2 + Cu + H2O =>
CuCl2*2H2O + Ca = CaCl2 + Cu + 2 H2O

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