| Équations équilibrées la veille | Équations équilibrées le lendemain |
K2Cr2O7 + 4 SnCl2 + 14 HCl = 2 KCl + 2 CrCl2 + 4 SnCl4 + 7 H2O
Na + CuI = NaI + Cu =>
Na + CuI = NaI + Cu
PCl5 + H2O = HCl + H3PO4 =>
PCl5 + 4 H2O = 5 HCl + H3PO4
FeCl2 + HCl = Cl3H + FeH =>
2 FeCl2 + 5 HCl = 3 Cl3H + 2 FeH
A2 + H2S + O = A2S + H2O =>
A2 + H2S + O = A2S + H2O
TeF3 + Ca = Te + CaF2 =>
2 TeF3 + 3 Ca = 2 Te + 3 CaF2
CH4N2O + C6H12O6 + C2H5OH = C5H10N2O3 + H2O =>
2 CH4N2O + C6H12O6 + C2H5OH = 2 C5H10N2O3 + 3 H2O
Pb2O3 + HCl = PbCl2 + PbCl4 + H2O =>
Pb2O3 + 6 HCl = PbCl2 + PbCl4 + 3 H2O
AuOH + H2CO3 = Au2CO3 + H2O =>
2 AuOH + H2CO3 = Au2CO3 + 2 H2O
Pb(NO3)2 + NaI = PbI2 + NaNO3 =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3
BeI2 + NaCl = NaI + BeCl2 =>
BeI2 + 2 NaCl = 2 NaI + BeCl2
Cd(s) + Fe(NO3)2(aq) = CdFe(aq) + NO3(aq) =>
Cd(s) + Fe(NO3)2(aq) = CdFe(aq) + 2 NO3(aq)
HCOOH + Ag2O = H2CO3 + Ag =>
HCOOH + Ag2O = H2CO3 + 2 Ag
Sr(OH)2 + SO2 = SrSO3 + H2O =>
Sr(OH)2 + SO2 = SrSO3 + H2O
KI + H2SO4 = H2S + I + K2O =>
8 KI + H2SO4 = H2S + 8 I + 4 K2O
Cr2O3 + Fe = Cr + Fe2O3 =>
Cr2O3 + 2 Fe = 2 Cr + Fe2O3
BN + F = BF + N =>
BN + F = BF + N
NaOH + MnCl2 = Mn(OH)2 + NaCl =>
2 NaOH + MnCl2 = Mn(OH)2 + 2 NaCl
(NH4)2CO3 = NH3 + H2O + CO2 =>
(NH4)2CO3 = 2 NH3 + H2O + CO2
NaI + Cr(NO3)2 = NaNO3 + CrI2 =>
2 NaI + Cr(NO3)2 = 2 NaNO3 + CrI2
Zn(s) + Cu(NO3)2(aq) = Cu(s) + Zn(NO3)2(ag) =>
Zn(s) + Cu(NO3)2(aq) = Cu(s) + Zn(NO3)2(ag)
N2 + HNO3 = H2O + NO =>
3 N2 + 4 HNO3 = 2 H2O + 10 NO
La2O3 + CaCO3 + MnO2 = LaCaMnO3 + CO2 + O2 =>
2 La2O3 + 4 CaCO3 + 4 MnO2 = 4 LaCaMnO3 + 4 CO2 + 3 O2
H2Se + KOH = KHSe + H2O =>
H2Se + KOH = KHSe + H2O
C3H5O6C(C15H31)3 + O2 = CO2 + H2O =>
2 C3H5O6C(C15H31)3 + 141 O2 = 98 CO2 + 98 H2O
Na2CO3 + Cr2(SO4)3 + KNO3 = CO2 + Na2SO4 + KNO2 + Na2CrO4 =>
5 Na2CO3 + Cr2(SO4)3 + 3 KNO3 = 5 CO2 + 3 Na2SO4 + 3 KNO2 + 2 Na2CrO4
HCN(aq) + Ca(OH)2(aq) = Ca(CN)2 + H2O(l) =>
2 HCN(aq) + Ca(OH)2(aq) = Ca(CN)2 + 2 H2O(l)
KMnO4 + H2SO4 + HCOOH = MnSO4 + CO2 + H2O + K2SO4 =>
2 KMnO4 + 3 H2SO4 + 5 HCOOH = 2 MnSO4 + 5 CO2 + 8 H2O + K2SO4
FeS(s) + HCl(aq) = Fe(Cl)2(aq) + H2S(q) =>
FeS(s) + 2 HCl(aq) = Fe(Cl)2(aq) + H2S(q)
CH2O + KClO3 = H2O + CO2 + KCl =>
3 CH2O + 2 KClO3 = 3 H2O + 3 CO2 + 2 KCl
NH3OHCl + K2Cr2O7 + H2SO4 = N2 + Cr2(SO4)3 + K2SO4 + HCl + H2O =>
6 NH3OHCl + K2Cr2O7 + 4 H2SO4 = 3 N2 + Cr2(SO4)3 + K2SO4 + 6 HCl + 13 H2O
NH2 + HNO3 = N2 + H2O =>
10 NH2 + 4 HNO3 = 7 N2 + 12 H2O
CaHPO4 + H3PO4 = Ca(H2PO4)2 =>
CaHPO4 + H3PO4 = Ca(H2PO4)2
Cr2O72{-} + (Cl){-} + H{+} = (Cr)3{+} + Cl2 + H2O =>
6 Cr2O72{-} + 854(Cl){-} + 864 H{+} = 4(Cr)3{+} + 427 Cl2 + 432 H2O
HC3H5O3 + O2 = CO2 + H2O =>
HC3H5O3 + 3 O2 = 3 CO2 + 3 H2O
Ti4 + Cl = TiCl4 =>
Ti4 + 16 Cl = 4 TiCl4
K2CO3 + K(OH)2 = K2OH + K(CO3)2 =>
2 K2CO3 + K(OH)2 = 2 K2OH + K(CO3)2
BiO3{-} + Mn{2+} + H{+} = Bi{3+} + MnO4{-} + H2O =>
5 BiO3{-} + 2 Mn{2+} + 14 H{+} = 5 Bi{3+} + 2 MnO4{-} + 7 H2O
Na2 + Al1 = NaAl =>
Na2 + 2 Al1 = 2 NaAl
Ca2As2O7 + NaCl = CaCl2 + Na4As2O7 =>
Ca2As2O7 + 4 NaCl = 2 CaCl2 + Na4As2O7
Mn{2+} + Cl2 + H2O = MnO4{-} + Cl{-} + H{+} =>
2 Mn{2+} + 5 Cl2 + 8 H2O = 2 MnO4{-} + 10 Cl{-} + 16 H{+}
NH3CO2 + CH4O + H2O = CH6O + NH3CO4 =>
NH3CO2 + 2 CH4O + 2 H2O = 2 CH6O + NH3CO4
H2SeO3 + Na(OH) = Na2SeO3 + H2O =>
H2SeO3 + 2 Na(OH) = Na2SeO3 + 2 H2O
BiCl2 + Na2SO4 = NaCl + BiSO4 =>
BiCl2 + Na2SO4 = 2 NaCl + BiSO4
LiBr + F2 = Br + LiF2 =>
LiBr + F2 = Br + LiF2
CuS + HNO3 = SO2 + Cu(NO3)2 + NO + H2O =>
CuS + 4 HNO3 = SO2 + Cu(NO3)2 + 2 NO + 2 H2O
CH3COOH = H2O + C =>
CH3COOH = 2 H2O + 2 C
HCOONa + H3PO4 = H2O + CO + Na3PO4 =>
3 HCOONa + H3PO4 = 3 H2O + 3 CO + Na3PO4
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
K2S + HNO3 = K2SO4 + NO + H2O =>
3 K2S + 8 HNO3 = 3 K2SO4 + 8 NO + 4 H2O
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