| Équations équilibrées la veille | Équations équilibrées le lendemain |
Cu(NH3)4(H2O)2 + 3 H2SO4 = CuSO4 + 2(NH4)2SO4 + 2 H3O
Ag + Au(ClO3)4 = AgClO3 + Au =>
4 Ag + Au(ClO3)4 = 4 AgClO3 + Au
Cl{2+} + Fe = Cl{-} + Fe{2+} =>
2 Cl{2+} + 3 Fe = 2 Cl{-} + 3 Fe{2+}
(NH4)2SO4 + NaI = INH4 + Na2SO4 =>
(NH4)2SO4 + 2 NaI = 2 INH4 + Na2SO4
H2S + Na = Na2S + H =>
H2S + 2 Na = Na2S + 2 H
Fe2(SO4)3 + I = FeI2 + (SO4)3 =>
Fe2(SO4)3 + 4 I = 2 FeI2 + (SO4)3
AgC2H3O2 + BrCl2 = AgCl2 + BrC2H3O2 =>
AgC2H3O2 + BrCl2 = AgCl2 + BrC2H3O2
SO2 + H2S = H2O + S =>
SO2 + 2 H2S = 2 H2O + 3 S
H{+} + Cr2O7{2-} + N2H5{+} = N2 + Cr{3+} + H2O =>
13 H{+} + 2 Cr2O7{2-} + 3 N2H5{+} = 3 N2 + 4 Cr{3+} + 14 H2O
NH4NO3(s) = N2O(g) + H2O(g) = =>
NH4NO3(s) = N2O(g) + 2 H2O(g)
NaHCO3 + HBr = NaBr + HCO3 + H2 =>
2 NaHCO3 + 2 HBr = 2 NaBr + 2 HCO3 + H2
Cu{2+} + CH3COO{-} = Cu2(CH3COO)4 =>
2 Cu{2+} + 4 CH3COO{-} = Cu2(CH3COO)4
LiOH(H2O) + MnO2 = LiMn2O4(H2O) + H2O + O2 =>
4 LiOH(H2O) + 8 MnO2 = 4 LiMn2O4(H2O) + 2 H2O + O2
KMnO4 + CH3CH2OH = K2CO3 + MnO2 + H2O =>
4 KMnO4 + CH3CH2OH = 2 K2CO3 + 4 MnO2 + 3 H2O
F2 + CoCl3 = F2Cl3 + Co =>
F2 + CoCl3 = F2Cl3 + Co
Mg(NO3)2 + (NH2)2CO = MgO + CO2 + N2 + H2O =>
3 Mg(NO3)2 + 5(NH2)2CO = 3 MgO + 5 CO2 + 8 N2 + 10 H2O
CH3COOH + H2O = OH + CH3COOH2 =>
CH3COOH + H2O = OH + CH3COOH2
H3PO4(ac) + SrBr2(ac) = Sr3(PO4)2(s) + HBr(ac) =>
2 H3PO4(ac) + 3 SrBr2(ac) = Sr3(PO4)2(s) + 6 HBr(ac)
H + N2O2 = H2O + N =>
4 H + N2O2 = 2 H2O + 2 N
Mg + O2 + H2O = Mg(OH)2 =>
2 Mg + O2 + 2 H2O = 2 Mg(OH)2
Ba(OH)2 + H2SO4 = BaSO4(soild) + H2O =>
Ba(OH)2 + H2SO4 = BaSO4(soild) + 2 H2O
CUO2 + C2 = UC + CO2 =>
2 CUO2 + C2 = 2 UC + 2 CO2
N2H4O3 + KOH = NH4OH + KNO3 =>
N2H4O3 + KOH = NH4OH + KNO3
AlBr3 + PbSO4 = PbBr2 + Al2(SO4)3 =>
2 AlBr3 + 3 PbSO4 = 3 PbBr2 + Al2(SO4)3
SO2 + HNO2 = NO + H2SO4 =>
SO2 + 2 HNO2 = 2 NO + H2SO4
NaOH(aq) + CaCl2(aq) = Ca(OH)2(s) + NaCl(aq) =>
2 NaOH(aq) + CaCl2(aq) = Ca(OH)2(s) + 2 NaCl(aq)
K4C = K + C =>
K4C = 4 K + C
NaHCO3 + C3H4(OH)(COOH)3 = CO2 + H2O + C3H4OH(COONa)3 =>
3 NaHCO3 + C3H4(OH)(COOH)3 = 3 CO2 + 3 H2O + C3H4OH(COONa)3
I2 + S2O3{-2} = I{-} + S4O6{-2} =>
I2 + 2 S2O3{-2} = 2 I{-} + S4O6{-2}
CH2Cl2 + HCl = CH4Cl + Cl2 =>
2 CH2Cl2 + 4 HCl = 2 CH4Cl + 3 Cl2
Pb(NO3)4(ac) + Mn = Mn(NO3)3 + Pb =>
3 Pb(NO3)4(ac) + 4 Mn = 4 Mn(NO3)3 + 3 Pb
MgCr2O7 = Mg + Cr + O =>
MgCr2O7 = Mg + 2 Cr + 7 O
Ag + H2S + O2 = AgS2S + H2O =>
2 Ag + 6 H2S + 3 O2 = 2 AgS2S + 6 H2O
NO3{-} + As2S3 + H2O = AsO4{-3} + NO + SO4{-2} + H{+} =>
28 NO3{-} + 3 As2S3 + 4 H2O = 6 AsO4{-3} + 28 NO + 9 SO4{-2} + 8 H{+}
Br + NaNO2 + H2O = HBr + NaNO3 =>
2 Br + NaNO2 + H2O = 2 HBr + NaNO3
Cu(l) + FeSO4 = Cu(l)FeSO4 =>
Cu(l) + FeSO4 = Cu(l)FeSO4
C3H8O3 = C3H6O + H2O + CO2 =>
8 C3H8O3 = 7 C3H6O + 11 H2O + 3 CO2
CH3OH + O2 = CO2 + HO2 =>
2 CH3OH + 9 O2 = 2 CO2 + 8 HO2
CsBr + O2 = Cs2O + Br2 =>
4 CsBr + O2 = 2 Cs2O + 2 Br2
CuSO4 + Na2CO3 + H2O = Na2SO4 + CuOH2CO3 =>
CuSO4 + Na2CO3 + H2O = Na2SO4 + CuOH2CO3
Cr2O7{-2} + Fe{+2} + H{+} = Fe{+3} + Cr{+3} + H2O =>
Cr2O7{-2} + 6 Fe{+2} + 14 H{+} = 6 Fe{+3} + 2 Cr{+3} + 7 H2O
KMnO4 + Cr2(SO4)3 + H2O = MnSO4 + CrO3 + K2SO4 + H2SO4 =>
6 KMnO4 + 5 Cr2(SO4)3 + 6 H2O = 6 MnSO4 + 10 CrO3 + 3 K2SO4 + 6 H2SO4
C9H8O4 + CH3CH2OH = C2H4O2 + C7H6O2 =>
18 C9H8O4 + 10 CH3CH2OH = 21 C2H4O2 + 20 C7H6O2
Ca3(PO4)2 + Si2O2 + C = CaSiO3 + CO + P =>
2 Ca3(PO4)2 + 3 Si2O2 + 4 C = 6 CaSiO3 + 4 CO + 4 P
AlPO4 + HCl = AlCl3 + H3PO4 =>
AlPO4 + 3 HCl = AlCl3 + H3PO4
Ni + HNO3 = Ni(NO3) + N2O + H2O =>
8 Ni + 10 HNO3 = 8 Ni(NO3) + N2O + 5 H2O
Be(s) + HF(aq) = BeF2(aq) + H2(g) =>
Be(s) + 2 HF(aq) = BeF2(aq) + H2(g)
MgF2 + O3 = MgO2 + F2 =>
3 MgF2 + 2 O3 = 3 MgO2 + 3 F2
AgI + NH3 = Ag(NH3) + I =>
AgI + NH3 = Ag(NH3) + I
Cd(s) + NiOOH(s) + H2O(l) = Cd(OH)2(s) + Ni(OH)2(s) =>
Cd(s) + 2 NiOOH(s) + 2 H2O(l) = Cd(OH)2(s) + 2 Ni(OH)2(s)
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