| Équations équilibrées la veille | Équations équilibrées le lendemain |
3 V(V) + 2 V(II) = 4 V(IV)
Bi2O + H4[Fe(CN)6] = Bi4[Fe(CN)6] + H2O =>
2 Bi2O + H4[Fe(CN)6] = Bi4[Fe(CN)6] + 2 H2O
Na3PO4 + KOH = NaOH + K3PO4 =>
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
(NH4)2CO3 + Ni(Cl)2 = NH4Cl + NiCO3 =>
(NH4)2CO3 + Ni(Cl)2 = 2 NH4Cl + NiCO3
Na(NO3)3 + FeSCN = Na(SCN)3 + Fe(NO3) =>
Na(NO3)3 + 3 FeSCN = Na(SCN)3 + 3 Fe(NO3)
Pb(NO3)2(aq) + KI(s) = KNO3(aq) + PbI2(s) =>
Pb(NO3)2(aq) + 2 KI(s) = 2 KNO3(aq) + PbI2(s)
Ba(OH)2 + CO2 = BaCO3 + H2O =>
Ba(OH)2 + CO2 = BaCO3 + H2O
MnS + NaBiO3 + HNO3 = HMnO4 + H2SO4 + Bi(NO3)3 + NaNO3 + H2O =>
2 MnS + 13 NaBiO3 + 52 HNO3 = 2 HMnO4 + 2 H2SO4 + 13 Bi(NO3)3 + 13 NaNO3 + 23 H2O
FeCl + Ba(OH)2 = Fe(OH)2 + BaCl =>
FeCl + Ba(OH)2 = Fe(OH)2 + BaCl
PbO2 + SO4 + H3O = PbSO4 + H2O =>
PbO2 + SO4 + 4 H3O = PbSO4 + 6 H2O
Na2HCO3 + HNO3 = Na2NO3 + H2O + CO2 =>
Na2HCO3 + HNO3 = Na2NO3 + H2O + CO2
BeNO2 = Be + NO2 =>
BeNO2 = Be + NO2
NH4OH + Cu3(PO4)2 = (NH4)3PO4 + Cu(OH)2 =>
6 NH4OH + Cu3(PO4)2 = 2(NH4)3PO4 + 3 Cu(OH)2
HCl + Fe2O3 = HO3 + ClFe2 =>
HCl + Fe2O3 = HO3 + ClFe2
FeI2 + Na3PO4 = NaI + Fe3(PO4)2 =>
3 FeI2 + 2 Na3PO4 = 6 NaI + Fe3(PO4)2
CH3SH + CO = CH3CO(SCH3) + H2S =>
2 CH3SH + CO = CH3CO(SCH3) + H2S
Ca(OCl)2 + H2O + NaHCO3 = HClO + CaCO3 + NaOH =>
Ca(OCl)2 + H2O + NaHCO3 = 2 HClO + CaCO3 + NaOH
BaCl2 + Ca(OH)2 = Ca(Cl)2 + Ba(OH)2 =>
BaCl2 + Ca(OH)2 = Ca(Cl)2 + Ba(OH)2
Fe{3+} + HCl = Fe(Cl)3 + H{+} =>
Fe{3+} + 3 HCl = Fe(Cl)3 + 3 H{+}
Na2CO3 + Ca = NaCa + CaCO3 =>
Na2CO3 + 3 Ca = 2 NaCa + CaCO3
Zn + HCl = ZnCl2 + H =>
Zn + 2 HCl = ZnCl2 + 2 H
Fe2(SO4)3 + LiOH = Fe(OH)3 + Li2SO4 =>
Fe2(SO4)3 + 6 LiOH = 2 Fe(OH)3 + 3 Li2SO4
C2H6(g) = C2 + H6 =>
C2H6(g) = C2 + H6
H2SO4 + FeSO3 = Fe2(SO4)3 + SO2 + H2O =>
4 H2SO4 + 2 FeSO3 = Fe2(SO4)3 + 3 SO2 + 4 H2O
Pb(NO)3 + Na2SO4 = PbSO4 + Na2(NO)3 =>
Pb(NO)3 + Na2SO4 = PbSO4 + Na2(NO)3
CH3CHO + CrO3 + H2SO4 = CH3COOH + Cr2(SO4)3 + H2O =>
3 CH3CHO + 2 CrO3 + 3 H2SO4 = 3 CH3COOH + Cr2(SO4)3 + 3 H2O
Mn2O7 + Na2SO3 + H2SO4 = MnSO4 + Na2SO4 + H2O =>
Mn2O7 + 5 Na2SO3 + 2 H2SO4 = 2 MnSO4 + 5 Na2SO4 + 2 H2O
Br + O = Br2O7 =>
2 Br + 7 O = Br2O7
Co4Cl8 + Na4OH4 = Co4OH4 + Na4Cl8 =>
Co4Cl8 + Na4OH4 = Co4OH4 + Na4Cl8
Fe2(SO4)3 + ZnO + H2O = ZnSO4 + Fe(OH)3 =>
Fe2(SO4)3 + 3 ZnO + 3 H2O = 3 ZnSO4 + 2 Fe(OH)3
Cr(OH)3*3H2O = Cr2O3 + H2O =>
2 Cr(OH)3*3H2O = Cr2O3 + 9 H2O
(NH4)3PO4 = NH3 + (NH4)2HPO4 =>
(NH4)3PO4 = NH3 + (NH4)2HPO4
Cr2O7{-2} + H{+} + Cl{-} = Cr{3+} + H2O + Cl2(g) =>
Cr2O7{-2} + 14 H{+} + 6 Cl{-} = 2 Cr{3+} + 7 H2O + 3 Cl2(g)
CuO(s) + CH3COOH(aq) = Cu(CH3COO)2(aq) + H2O(l) =>
CuO(s) + 2 CH3COOH(aq) = Cu(CH3COO)2(aq) + H2O(l)
CsCl + In = CsInCl =>
CsCl + In = CsInCl
H{+} + H2S + Cr2O7{2-} = S + Cr{3+} + H2O =>
8 H{+} + 3 H2S + Cr2O7{2-} = 3 S + 2 Cr{3+} + 7 H2O
HClO3 + Sn(OH)4 = Sn(OH)2(ClO3)2 + H2O =>
2 HClO3 + Sn(OH)4 = Sn(OH)2(ClO3)2 + 2 H2O
Na2S4O6 + KMnO4 + HNO3 = KNO3 + Na2SO4 + H2SO4 + Mn(NO3)2 + H2O =>
5 Na2S4O6 + 14 KMnO4 + 42 HNO3 = 14 KNO3 + 5 Na2SO4 + 15 H2SO4 + 14 Mn(NO3)2 + 6 H2O
Cl2(aq) + I{-}(aq) = I2(aq) + Cl{-}(aq) =>
Cl2(aq) + 2 I{-}(aq) = I2(aq) + 2 Cl{-}(aq)
Cr2O7{2-} + H2S + H{+} = Cr{3+} + S + H2O =>
Cr2O7{2-} + 3 H2S + 8 H{+} = 2 Cr{3+} + 3 S + 7 H2O
H2GeO3 + H2O = Ge(OH)4 =>
H2GeO3 + H2O = Ge(OH)4
C4H8 + HCl = C4H6Cl2 + H2 =>
C4H8 + 2 HCl = C4H6Cl2 + 2 H2
N2 + F2 = NF3 =>
N2 + 3 F2 = 2 NF3
CoSO4 + K = K2SO4 + Co =>
CoSO4 + 2 K = K2SO4 + Co
Al2 + KOH + H2O = K2Al2O4 + H2 =>
Al2 + 2 KOH + 2 H2O = K2Al2O4 + 3 H2
NaHCO3(s) + N2(g) = NaNO3 + C2H2 =>
2 NaHCO3(s) + N2(g) = 2 NaNO3 + C2H2
Mg + Zn2SO4 = MgSO4 + Zn =>
Mg + Zn2SO4 = MgSO4 + 2 Zn
In2O3 + H3PO4 = InPO4 + H2O =>
In2O3 + 2 H3PO4 = 2 InPO4 + 3 H2O
HC4 + O2 = CO2 + HO2 =>
HC4 + 5 O2 = 4 CO2 + HO2
NH4C2H3O2(aq) + NaOH(aq) = NH4OH(s) + NaC2H3O2(aq) =>
NH4C2H3O2(aq) + NaOH(aq) = NH4OH(s) + NaC2H3O2(aq)
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