| Équations équilibrées la veille | Équations équilibrées le lendemain |
Pb(NO3)2 + 2 NaI(aq) = 2 NaNO3(aq) + PbI2(s)
NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + NaNO3(aq) =>
2 NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + 2 NaNO3(aq)
H2S + K2S = HKS =>
H2S + K2S = 2 HKS
NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + NaNO3(aq) =>
2 NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + 2 NaNO3(aq)
Mn(OH)4 + BaO = BaMnO3 + H2O =>
Mn(OH)4 + BaO = BaMnO3 + 2 H2O
NaOH + H2SO4 = NaSO4 + HOH + H2 =>
2 NaOH + 2 H2SO4 = 2 NaSO4 + 2 HOH + H2
Co2(SO4)3 + NH3 + H2O = Co(OH)3 + (NH4)2SO4 =>
Co2(SO4)3 + 6 NH3 + 6 H2O = 2 Co(OH)3 + 3(NH4)2SO4
K2Cr2O7 + NH4OH = KOH + N2 + Cr2O3 + H2O =>
K2Cr2O7 + 2 NH4OH = 2 KOH + N2 + Cr2O3 + 4 H2O
Pb(NO3)2 + NaI(aq) = PbI2 + NaNO3 =>
Pb(NO3)2 + 2 NaI(aq) = PbI2 + 2 NaNO3
HI + H2SO44 = I2 + SO2 + H2O =>
82 HI + H2SO44 = 41 I2 + SO2 + 42 H2O
Ba + Fe2O3 = Fe2Ba + O3 =>
Ba + Fe2O3 = Fe2Ba + O3
NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + NaNO3(aq) =>
2 NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + 2 NaNO3(aq)
I2(aq) + Na2S2O3(aq) = NaI(aq) + Na2S4O6(aq) =>
I2(aq) + 2 Na2S2O3(aq) = 2 NaI(aq) + Na2S4O6(aq)
NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + NaNO3(aq) =>
2 NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + 2 NaNO3(aq)
SO2 + NO2 + H2O = H2S04 + HNO3 =>
4 SO2 + 18 NO2 + 10 H2O = H2S04 + 18 HNO3
Pb(NO3)2 + BaCl2 = PbCl2 + Ba(NO3)2 =>
Pb(NO3)2 + BaCl2 = PbCl2 + Ba(NO3)2
(NH4)2SO4(aq) + Pb(NO3)2(aq) = NH4NO3(aq) + PbSO4 =>
(NH4)2SO4(aq) + Pb(NO3)2(aq) = 2 NH4NO3(aq) + PbSO4
C12H8O4 + O2 = CO2 + H2O =>
C12H8O4 + 12 O2 = 12 CO2 + 4 H2O
CH3OHNaClO = HCOHH2ONaCl =>
CH3OHNaClO = HCOHH2ONaCl
Sb + S8 = Sb2S5 =>
16 Sb + 5 S8 = 8 Sb2S5
(C2)(H6) + (O2) = (CO2) + (H2)(O) =>
2(C2)(H6) + 7(O2) = 4(CO2) + 6(H2)(O)
Ba(OH)2 + NO2 = Ba(NO2)2 + Ba(NO3)2 + H2O =>
2 Ba(OH)2 + 4 NO2 = Ba(NO2)2 + Ba(NO3)2 + 2 H2O
CaC2 + H2O = Ca(OH2) + CH2CHCO2H =>
3 CaC2 + 7 H2O = 3 Ca(OH2) + 2 CH2CHCO2H
NiBr2 + KClO2 = BrClO2 + NiK2 =>
NiBr2 + 2 KClO2 = 2 BrClO2 + NiK2
SrSO4 + C = SrS + CO2 =>
SrSO4 + 2 C = SrS + 2 CO2
H2O + C12H22O11 = H2CO3 + C2H5OH =>
5 H2O + C12H22O11 = 4 H2CO3 + 4 C2H5OH
Cr2O3 + Na2CO3 + HNO3 = Na2CrO4 + CO2 + HNO2 =>
Cr2O3 + 2 Na2CO3 + 3 HNO3 = 2 Na2CrO4 + 2 CO2 + 3 HNO2
Cr(NO3)3 + NaOH + H2O2 = Na2CrO4 + HNO3 + H2O =>
2 Cr(NO3)3 + 4 NaOH + 3 H2O2 = 2 Na2CrO4 + 6 HNO3 + 2 H2O
NaOClH2O2 = O2NaClH2O =>
NaOClH2O2 = O2NaClH2O
FeCl3(aq) + NaOH(aq) = Fe(OH)3(s) + NaCl =>
FeCl3(aq) + 3 NaOH(aq) = Fe(OH)3(s) + 3 NaCl
Sn(CO3)2 + Al2O3 = SnO2 + Al2(CO3)3 =>
3 Sn(CO3)2 + 2 Al2O3 = 3 SnO2 + 2 Al2(CO3)3
CH3COCH3 + OH = CO2 + H2O =>
CH3COCH3 + 16 OH = 3 CO2 + 11 H2O
NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + NaNO3(aq) =>
2 NaI(aq) + Pb(NO3)2 = Pb(I2)(s) + 2 NaNO3(aq)
Fe{2+} + I{-} = Fe + I =>
Fe{2+} + 2 I{-} = Fe + 2 I
C3H5N3O9 = CO2 + N2 + O2 + H2 =>
2 C3H5N3O9 = 6 CO2 + 3 N2 + 3 O2 + 5 H2
NiSO4 + Be = BeSO4 + Ni =>
NiSO4 + Be = BeSO4 + Ni
SrCl2 + Na2HPo4 = SrHPo4 + NaCl =>
SrCl2 + Na2HPo4 = SrHPo4 + 2 NaCl
HCN + HCl = CClH + HN =>
HCN + HCl = CClH + HN
BaO2 + Cr2(SO4)3 + NaOH = BaSO4 + Na2CrO4 + H2O =>
3 BaO2 + Cr2(SO4)3 + 4 NaOH = 3 BaSO4 + 2 Na2CrO4 + 2 H2O
KNO2 + Mg + H2O = NH3 + KOH + Mg(OH)2 =>
KNO2 + 3 Mg + 5 H2O = NH3 + KOH + 3 Mg(OH)2
CuCl2*2H2O + C7H5NaO3 = NaCl + Cu(C6H5OCOO)2 + H2O =>
CuCl2*2H2O + 2 C7H5NaO3 = 2 NaCl + Cu(C6H5OCOO)2 + 2 H2O
KClO3 + P16 = KCl + P4O10 =>
40 KClO3 + 3 P16 = 40 KCl + 12 P4O10
Zn + Cu3N = ZnN + Cu =>
Zn + Cu3N = ZnN + 3 Cu
K2Cr2O7 + H2O + S = SO2 + K(OH) + Cr2O3 =>
2 K2Cr2O7 + 2 H2O + 3 S = 3 SO2 + 4 K(OH) + 2 Cr2O3
Tb2O5 + HNO3 = Tb(NO3)5 + H2O =>
Tb2O5 + 10 HNO3 = 2 Tb(NO3)5 + 5 H2O
Ba(OH)2 + H3PO4 = BaHPO4 + H2O =>
Ba(OH)2 + H3PO4 = BaHPO4 + 2 H2O
Na2Cr2O7 + H2O2 + NaOH = Na3[Cr(OH)6] + O2 =>
2 Na2Cr2O7 + 8 H2O2 + 8 NaOH = 4 Na3[Cr(OH)6] + 7 O2
SO2 + FeCl3 + H2O = H2SO4 + HCl + FeCl2 =>
SO2 + 2 FeCl3 + 2 H2O = H2SO4 + 2 HCl + 2 FeCl2
N2 + O2 + H2O = HNO3 =>
2 N2 + 5 O2 + 2 H2O = 4 HNO3
PtCl4(aq) = Cl2(g) + Pt(s) =>
PtCl4(aq) = 2 Cl2(g) + Pt(s)
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