| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 Cu + 8 NaCN + 2 H2O + O2 = 4 NaOH + 4 Na[Cu(CN)2]
NaHSO4 + NaHCO3 = Na2SO4 + H2O + CO2 =>
NaHSO4 + NaHCO3 = Na2SO4 + H2O + CO2
FeCl3(aq) + NaOH(aq) = Fe(OH)3(aq) + NaCl(aq) =>
FeCl3(aq) + 3 NaOH(aq) = Fe(OH)3(aq) + 3 NaCl(aq)
Br2 + H2O = O2 + Br{-} + H{+} =>
2 Br2 + 2 H2O = O2 + 4 Br{-} + 4 H{+}
C6H8O6 + H2O = C6H10O7 =>
C6H8O6 + H2O = C6H10O7
KMnO4 + C3H8O3 = Mn2O3 + K2CO3 + CO2 + H2O =>
14 KMnO4 + 4 C3H8O3 = 7 Mn2O3 + 7 K2CO3 + 5 CO2 + 16 H2O
Cr(CH3COO)3 + Na2CO3 = Cr2(CO3)3 + NaCH3COO =>
2 Cr(CH3COO)3 + 3 Na2CO3 = Cr2(CO3)3 + 6 NaCH3COO
NH4Cl + AgNO3 = NH4NO3 + AgCl =>
NH4Cl + AgNO3 = NH4NO3 + AgCl
H2O(l) + CO2(g) + CH3COONa(aq) = NaHCO3(s) + CH3COOH(aq) =>
H2O(l) + CO2(g) + CH3COONa(aq) = NaHCO3(s) + CH3COOH(aq)
AgC2H3O2 + K2(CrO4) = Ag2CrO4 + KC2H3O2 =>
2 AgC2H3O2 + K2(CrO4) = Ag2CrO4 + 2 KC2H3O2
PCl5 + H2O = HCl + H3PO4 =>
PCl5 + 4 H2O = 5 HCl + H3PO4
K2[Zn(OH)4] + HCl = ZnCl2 + KOH + H2O =>
K2[Zn(OH)4] + 2 HCl = ZnCl2 + 2 KOH + 2 H2O
Ag2Cr2O7 = Ag + Cr2O7 =>
Ag2Cr2O7 = 2 Ag + Cr2O7
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
AgCl + PbI2 = AgI + PbCl2 =>
2 AgCl + PbI2 = 2 AgI + PbCl2
SiF4 + H2O = HF + SiO2 =>
SiF4 + 2 H2O = 4 HF + SiO2
K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O + O =>
K2Cr2O7 + 4 H2SO4 = K2SO4 + Cr2(SO4)3 + 4 H2O + 3 O
HClNaOH = NaClH2O =>
HClNaOH = NaClH2O
Cu + Fe(OH)3 = CuOH + Fe =>
3 Cu + Fe(OH)3 = 3 CuOH + Fe
HB + O2 = HBO2 =>
HB + O2 = HBO2
Sr + H(NO3) = Sr(NO3) + H2 =>
2 Sr + 2 H(NO3) = 2 Sr(NO3) + H2
NaOH(aq) + MgBr2(aq) = NaBr2(aq) + MgOH(s) =>
NaOH(aq) + MgBr2(aq) = NaBr2(aq) + MgOH(s)
SrCl2 + HC2H3O2 = Sr(C2H3O2)2 + HCl =>
SrCl2 + 2 HC2H3O2 = Sr(C2H3O2)2 + 2 HCl
Ca(NO3)2 + NH3 = Ca(NH3)2 + NO3 =>
Ca(NO3)2 + 2 NH3 = Ca(NH3)2 + 2 NO3
Co(OH)3 + H2SO4 = CoSO4 + O2 + H2O =>
4 Co(OH)3 + 4 H2SO4 = 4 CoSO4 + O2 + 10 H2O
Cd + O = CdO =>
Cd + O = CdO
SiF4 + K = KF + Si =>
SiF4 + 4 K = 4 KF + Si
Fe + C + N2 = Fe(CN)2 =>
Fe + 2 C + N2 = Fe(CN)2
Al2S3 + HCl = AlCl3 + H2S =>
Al2S3 + 6 HCl = 2 AlCl3 + 3 H2S
AlCl3(s) = Al + Cl2 =>
2 AlCl3(s) = 2 Al + 3 Cl2
C7H9N + HCl = C7H10NCl =>
C7H9N + HCl = C7H10NCl
Zn(C2H3O2)2 + Li2CO3 = ZnCO3 + LiC2H3O2 =>
Zn(C2H3O2)2 + Li2CO3 = ZnCO3 + 2 LiC2H3O2
Br2 + S + H2O = HBr + H2SO4 =>
3 Br2 + S + 4 H2O = 6 HBr + H2SO4
CUS + HNO3 = CUSO4 + NO2 + H2O =>
CUS + 8 HNO3 = CUSO4 + 8 NO2 + 4 H2O
KMnO4 + NaCl + H2SO4 = Cl2 + K2SO4 + MnSO4 + H2O + Na2SO4 =>
2 KMnO4 + 10 NaCl + 8 H2SO4 = 5 Cl2 + K2SO4 + 2 MnSO4 + 8 H2O + 5 Na2SO4
FeCl2 + KSCN = Fe(SCN)2 + KCl =>
FeCl2 + 2 KSCN = Fe(SCN)2 + 2 KCl
C6H5Cl + NaOH = C6H6O + NaCl =>
C6H5Cl + NaOH = C6H6O + NaCl
Pb(OH)2 + CH3COOH = Pb(CH3COO)2 + H2O =>
Pb(OH)2 + 2 CH3COOH = Pb(CH3COO)2 + 2 H2O
K2SO3 = K2O + SO2 =>
K2SO3 = K2O + SO2
AgNO3 + Na2C2O4 = Ag2C2O4 + NaNO3 =>
2 AgNO3 + Na2C2O4 = Ag2C2O4 + 2 NaNO3
C9H8O4 + NaHCO3 = NaC9H7O4 + H2CO3 =>
C9H8O4 + NaHCO3 = NaC9H7O4 + H2CO3
NH3 + H2SO3 = N2(SO3)3 + H2 =>
2 NH3 + 3 H2SO3 = N2(SO3)3 + 6 H2
Fe2 + H2S = H2 + FeS =>
Fe2 + 2 H2S = 2 H2 + 2 FeS
S2O3 + IO3 = I2 + SO4 =>
6 S2O3 + 10 IO3 = 5 I2 + 12 SO4
Cu(s) + Mg(NO3)2(aq) = Mg + CuNO3 =>
2 Cu(s) + Mg(NO3)2(aq) = Mg + 2 CuNO3
FeSO4 + KNO3 + KOH = Fe3O4 + KNO2 + K2SO4 + H2O =>
3 FeSO4 + KNO3 + 6 KOH = Fe3O4 + KNO2 + 3 K2SO4 + 3 H2O
C + H + O2 = CH2O =>
2 C + 4 H + O2 = 2 CH2O
AgNO3(ag) + Cu(s) = Cu(NO3)2(ag) + Ag(s) =>
2 AgNO3(ag) + Cu(s) = Cu(NO3)2(ag) + 2 Ag(s)
Cr2O3 + H2O2 = CrO4 + H2O =>
Cr2O3 + 5 H2O2 = 2 CrO4 + 5 H2O
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