| Équations équilibrées la veille | Équations équilibrées le lendemain |
Pb(NO3)2 + Na2S = PbS + 2 NaNO3
Na2S2O5 + HOCl + H2O = Na2SO4 + H2SO4 + HCl =>
Na2S2O5 + 2 HOCl + H2O = Na2SO4 + H2SO4 + 2 HCl
HNO3 + Na2S = S + NaNO3 + NO + H2O =>
8 HNO3 + 3 Na2S = 3 S + 6 NaNO3 + 2 NO + 4 H2O
Ca(NO3)2Ca(NO3)2 + Fe3(PO4)2Fe3(PO4)2 = Ca3(PO4)2Ca3(PO4)2 + Fe(NO3)2 =>
3 Ca(NO3)2Ca(NO3)2 + Fe3(PO4)2Fe3(PO4)2 = Ca3(PO4)2Ca3(PO4)2 + 6 Fe(NO3)2
CrSO4 + NH2(CO3)4 = CrCO3 + NH2(SO4)4 =>
4 CrSO4 + NH2(CO3)4 = 4 CrCO3 + NH2(SO4)4
KMnO4 + FeC2O4 + H2SO4 = K2SO4 + MnSO4 + Fe2(SO4)3 + H2O + CO2 =>
6 KMnO4 + 10 FeC2O4 + 24 H2SO4 = 3 K2SO4 + 6 MnSO4 + 5 Fe2(SO4)3 + 24 H2O + 20 CO2
Ca(OH)2 + C(OH)4 = CaCO3 + H2O =>
Ca(OH)2 + C(OH)4 = CaCO3 + 3 H2O
ScCl3 = Sc + Cl2 =>
2 ScCl3 = 2 Sc + 3 Cl2
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
HgS + HCl + HNO3 = [HgCl4]{2-} + NO + H2O + S + H{+} =>
3 HgS + 12 HCl + 2 HNO3 = 3[HgCl4]{2-} + 2 NO + 4 H2O + 3 S + 6 H{+}
H2O + O2 = (H2O2) =>
2 H2O + O2 = 2(H2O2)
Al(s) + ZnSO4(aq) = Al2(SO4)3(aq) + Zn(s) =>
2 Al(s) + 3 ZnSO4(aq) = Al2(SO4)3(aq) + 3 Zn(s)
C2H4O2 + Cu(OH)2 = H2O + Cu(CH3COO)2 =>
2 C2H4O2 + Cu(OH)2 = 2 H2O + Cu(CH3COO)2
NaNO2(aq) + AuClO4(aq) = NaClO4(aq) + AuNO2(aq) =>
NaNO2(aq) + AuClO4(aq) = NaClO4(aq) + AuNO2(aq)
CuSO4 + KOH + Br2 = KCuO2 + H2O + KBr + K2SO4 =>
2 CuSO4 + 8 KOH + Br2 = 2 KCuO2 + 4 H2O + 2 KBr + 2 K2SO4
Ca(OH)2 + HBrO3 = Ca(OH)BrO3 + H2O =>
Ca(OH)2 + HBrO3 = Ca(OH)BrO3 + H2O
Al(s) + I2(s) = Al2I6(s) =>
2 Al(s) + 3 I2(s) = Al2I6(s)
Cl2 + CrCl3 + KCl + NaOH = K2CrO4 + NaCl + H2O =>
3 Cl2 + 2 CrCl3 + 4 KCl + 16 NaOH = 2 K2CrO4 + 16 NaCl + 8 H2O
KClO3 + NaHSO3 = Na2SO4 + KCl + H2SO3 =>
KClO3 + 6 NaHSO3 = 3 Na2SO4 + KCl + 3 H2SO3
FeSO4 = Fe2O3 + O2 + SO2 =>
4 FeSO4 = 2 Fe2O3 + O2 + 4 SO2
PClO3 = P + Cl + O =>
PClO3 = P + Cl + 3 O
NaI + Na2CO3 = ICO3 + Na =>
NaI + Na2CO3 = ICO3 + 3 Na
CoCl2 + Na2S*9H2O = Co2S2 + Na2Cl2 + H2O =>
2 CoCl2 + 2 Na2S*9H2O = Co2S2 + 2 Na2Cl2 + 18 H2O
Mg(OH)2 + Na2CO3 = Mg2(CO3)2 + (OH)2Na2 =>
2 Mg(OH)2 + 2 Na2CO3 = Mg2(CO3)2 + 2(OH)2Na2
I2 + KSCN = KI + SCN =>
I2 + 2 KSCN = 2 KI + 2 SCN
I{2+} + S = IS{2+} =>
I{2+} + S = IS{2+}
Co(C2H3O2)2 + Ag = Ag(C2H3O2) + Co =>
Co(C2H3O2)2 + 2 Ag = 2 Ag(C2H3O2) + Co
Fe(OH)2 + H2SO4 = H2O + FeSO4 =>
Fe(OH)2 + H2SO4 = 2 H2O + FeSO4
C3H7OH + Na = C3H7NaO + H2 =>
2 C3H7OH + 2 Na = 2 C3H7NaO + H2
MnO4{-} + Cl2 + H3O{+} = Mn{2+} + HClO + H2O =>
2 MnO4{-} + 5 Cl2 + 6 H3O{+} = 2 Mn{2+} + 10 HClO + 4 H2O
Ba(OH)2 + (NH4)Cl = NH3 + BaCl2 + H2O =>
Ba(OH)2 + 2(NH4)Cl = 2 NH3 + BaCl2 + 2 H2O
SO5 + O2 = SO17 =>
SO5 + 6 O2 = SO17
CH4O + O = H2O + CO2 =>
CH4O + 3 O = 2 H2O + CO2
(HC2H3O2) + (NaHCO3) = (CO2) + (H2O) + (NaC2H3O2) =>
(HC2H3O2) + (NaHCO3) = (CO2) + (H2O) + (NaC2H3O2)
Fe + H2CO3 = FeCO3 + H2 =>
Fe + H2CO3 = FeCO3 + H2
Zn + SnCl2 = Sn + ZnCl2 =>
Zn + SnCl2 = Sn + ZnCl2
C4H8O2 + NaOH = NaC4H6O + CO2 + H2O =>
21 C4H8O2 + 20 NaOH = 20 NaC4H6O + 4 CO2 + 34 H2O
C12H16N4O18 + NH4ClO4 = CO2 + Cl2 + H2O + N2 =>
2 C12H16N4O18 + 14 NH4ClO4 = 24 CO2 + 7 Cl2 + 44 H2O + 11 N2
NbO + CO = Nb2C + O2 =>
4 NbO + 2 CO = 2 Nb2C + 3 O2
C3H6O2 + C3H8O = C5H10O2 + H2O =>
3 C3H6O2 + 2 C3H8O = 3 C5H10O2 + 2 H2O
K2Co3 + Mg(NO3)2 = K2(NO3)2 + MgCo3 =>
K2Co3 + Mg(NO3)2 = K2(NO3)2 + MgCo3
Co(OH)Cl + HCl = CoCl2 + H2O =>
Co(OH)Cl + HCl = CoCl2 + H2O
Pb + SnO = PbO + Sn =>
Pb + SnO = PbO + Sn
Fe(NO3)3 + NaSCN = FeSCN + Na(NO3)3 =>
Fe(NO3)3 + NaSCN = FeSCN + Na(NO3)3
Al2(SO4)3 + K3N = K2SO4 + AlN =>
Al2(SO4)3 + 2 K3N = 3 K2SO4 + 2 AlN
Ca(OH)2 + I2 = CaI + H2O + O2 =>
2 Ca(OH)2 + I2 = 2 CaI + 2 H2O + O2
FeCr2O4 + K2CO3 + KClO3 = K2CrO4 + Fe2O3 + KCl + CO2 =>
6 FeCr2O4 + 12 K2CO3 + 7 KClO3 = 12 K2CrO4 + 3 Fe2O3 + 7 KCl + 12 CO2
Mg + (NO3)2 + CaI = Ca(NO3)2 + MgI2 =>
Mg + 2(NO3)2 + 2 CaI = 2 Ca(NO3)2 + MgI2
SO1Cl2 + H2O = SO4 + H + Cl =>
SO1Cl2 + 3 H2O = SO4 + 6 H + 2 Cl
K2MnO4 + H2SO4 = KMnO4 + MnO2 + K2SO4 + H2O =>
3 K2MnO4 + 2 H2SO4 = 2 KMnO4 + MnO2 + 2 K2SO4 + 2 H2O
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