| Équations équilibrées la veille | Équations équilibrées le lendemain |
NaClO2 = NaCl + O2
NaF + KMnO4 + H2SO4 = F2 + H2O + K2SO4 + Na2SO4 + MnSO4 =>
10 NaF + 2 KMnO4 + 8 H2SO4 = 5 F2 + 8 H2O + K2SO4 + 5 Na2SO4 + 2 MnSO4
K2SO3 + FeCl3 + H2O = Fe(OH)3 + SO2 + KCl =>
3 K2SO3 + 2 FeCl3 + 3 H2O = 2 Fe(OH)3 + 3 SO2 + 6 KCl
CuF2 + Cl2 = ClF + Cu =>
CuF2 + Cl2 = 2 ClF + Cu
H3C6H5O7 + Na2CO3 = H2O + Na3C6H5O7 + CO2 =>
2 H3C6H5O7 + 3 Na2CO3 = 3 H2O + 2 Na3C6H5O7 + 3 CO2
Na + AlBr3 = NaBr + Al =>
3 Na + AlBr3 = 3 NaBr + Al
MnO4{-} + H2O + {-} = MnO2 + OH{-} =>
MnO4{-} + 2 H2O + 3e = MnO2 + 4 OH{-}
P4(s) + Br2(l) = PBr3(l) =>
P4(s) + 6 Br2(l) = 4 PBr3(l)
(NH4)2SO3 + Na2SO4 = (NH4)2SO4 + Na2SO3 =>
(NH4)2SO3 + Na2SO4 = (NH4)2SO4 + Na2SO3
FeS + CaCl2 = FeCl2 + CaS =>
FeS + CaCl2 = FeCl2 + CaS
NO3 + H4Fe(CN)6 + KI = K4Fe(CN)6 + HNO3 + I2 =>
4 NO3 + H4Fe(CN)6 + 4 KI = K4Fe(CN)6 + 4 HNO3 + 2 I2
Al(OH)3 + NH3 = Al(NH2)3 + H2O =>
Al(OH)3 + 3 NH3 = Al(NH2)3 + 3 H2O
Ni{2+}SO2 = Ni{2}O =>
Ni{2+}SO2 = Ni{2}O
Sn + Hg3(PO4)2 = Sn3(PO4)4 + Hg =>
3 Sn + 2 Hg3(PO4)2 = Sn3(PO4)4 + 6 Hg
CO2 + H2SO4 = CO2SO4 + H2 =>
CO2 + H2SO4 = CO2SO4 + H2
K4[Fe(CN)6] + H2O2 + H2SO4 = K2[Fe(CN)6] + K2SO4 + H2O =>
K4[Fe(CN)6] + H2O2 + H2SO4 = K2[Fe(CN)6] + K2SO4 + 2 H2O
Al + I2 = Al(I2) =>
Al + I2 = Al(I2)
TiO2 + H2O = OH + TiH2 =>
TiO2 + 4 H2O = 6 OH + TiH2
Cr(OH)3 + NaOH + C6H6 = Cr(OH)2 + Na2CO3 + H2O =>
30 Cr(OH)3 + 12 NaOH + C6H6 = 30 Cr(OH)2 + 6 Na2CO3 + 24 H2O
C8H10 = C7H8 + CH4 =>
10 C8H10 = 11 C7H8 + 3 CH4
Ba + (SCN)1 = Ba(SCN)2 =>
Ba + 2(SCN)1 = Ba(SCN)2
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
Br2 + C2H6 = C2H5Br + HBr =>
Br2 + C2H6 = C2H5Br + HBr
FeAsS + O2 = Fe2O3 + As2O3 + SO2 =>
2 FeAsS + 5 O2 = Fe2O3 + As2O3 + 2 SO2
FeSO4 + Mg(NO3)2 = Fe(NO3)2 + MgSO4 =>
FeSO4 + Mg(NO3)2 = Fe(NO3)2 + MgSO4
Al + HSO = AlSO + H2 =>
2 Al + 2 HSO = 2 AlSO + H2
ZnCl2 + Na2S = Na2Cl2 + ZnS =>
ZnCl2 + Na2S = Na2Cl2 + ZnS
O(subscript)2 = O(subscript)3 =>
3 O(subscript)2 = 2 O(subscript)3
Cu(MnO4) + Cr(Cr2O7)2 = Cr(MnO4)2 + Cu(Cr2O7) =>
2 Cu(MnO4) + Cr(Cr2O7)2 = Cr(MnO4)2 + 2 Cu(Cr2O7)
H2S(g) + SO2 = S(s) + H2O(g) =>
2 H2S(g) + SO2 = 3 S(s) + 2 H2O(g)
CH3 = C + H2 =>
2 CH3 = 2 C + 3 H2
NaClO3 + HCl = NaCl + Cl2 + H2O =>
NaClO3 + 6 HCl = NaCl + 3 Cl2 + 3 H2O
AlI + Br = AlBr3 + I =>
AlI + 3 Br = AlBr3 + I
CH3Cl + NaOH = C2H5OH + NaCl + HCl =>
2 CH3Cl + NaOH = C2H5OH + NaCl + HCl
Ba(OH)2 + S = BaS + BaSO3 + H2O =>
3 Ba(OH)2 + 3 S = 2 BaS + BaSO3 + 3 H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Ni(NO3)2 + NH3 = Ni(OH)2 + N2 + H2O =>
3 Ni(NO3)2 + 10 NH3 = 3 Ni(OH)2 + 8 N2 + 12 H2O
Ba(OH)2*8H2O + NaHCO3 = BaCO3 + Na2CO3 + H2O =>
Ba(OH)2*8H2O + 2 NaHCO3 = BaCO3 + Na2CO3 + 10 H2O
Co(OH)2 = Co2O2 + H2O =>
2 Co(OH)2 = Co2O2 + 2 H2O
Fe + CO2 = Fe3O4 + CO =>
3 Fe + 4 CO2 = Fe3O4 + 4 CO
NiSO4 + (NH4)2SO4 = Ni + (NH4)SO4 =>
NiSO4 + (NH4)2SO4 = Ni + 2(NH4)SO4
Mn(NH3)2 + HNO3 = Mn(NO3)2 + H + NH3 =>
Mn(NH3)2 + 2 HNO3 = Mn(NO3)2 + 2 H + 2 NH3
N + Cl = N3Cl3 =>
3 N + 3 Cl = N3Cl3
Na2CO3 + Cu(OH)2 = CuCO3 + NaOH =>
Na2CO3 + Cu(OH)2 = CuCO3 + 2 NaOH
NaI + Mn(NO3)2 = MnI + Na(NO3)2 =>
NaI + Mn(NO3)2 = MnI + Na(NO3)2
CoCl2*6H2O + H2C2O4*2H2O = Co(C2O4)*(H2O)2 + HCl + H2O =>
CoCl2*6H2O + H2C2O4*2H2O = Co(C2O4)*(H2O)2 + 2 HCl + 6 H2O
NH4ClO4 + C5H8 = N2 + H2O + HCl + CO2 =>
28 NH4ClO4 + 5 C5H8 = 14 N2 + 62 H2O + 28 HCl + 25 CO2
Fe + HCI = H + FeCI =>
Fe + HCI = H + FeCI
C2H5NO2 + O2 = CO2H2O + CH4N2O =>
2 C2H5NO2 + 3 O2 = 3 CO2H2O + CH4N2O
K3(Fe(CN)6) + KSCN = KCN + Fe(SCN)3 =>
K3(Fe(CN)6) + 3 KSCN = 6 KCN + Fe(SCN)3
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