| Équations équilibrées la veille | Équations équilibrées le lendemain |
3 HCCH + 8 KMnO4 + 4 H2SO4 = 2 COOH + 4 K2SO4 + 8 MnO2 + 4 H2OCOOH
KI + NaOH + Cl2 = KCl + NaCl + NaIO3 + H2O =>
KI + 6 NaOH + 3 Cl2 = KCl + 5 NaCl + NaIO3 + 3 H2O
Mg + HCl = MgCl2 + H2 = H2O2 =>
Mg + 2 HCl = MgCl2 + H2
Si + H2 = SiH1 =>
2 Si + H2 = 2 SiH1
KI(aq) + Na2CO3(aq) = K2CO3(aq) + NaI(s) =>
2 KI(aq) + Na2CO3(aq) = K2CO3(aq) + 2 NaI(s)
HgS + HNO3 = Hg(NO3)2 + NO2 + H2O + S =>
HgS + 4 HNO3 = Hg(NO3)2 + 2 NO2 + 2 H2O + S
W + H2O2 + NaOH = H2 + Na2WO4 =>
W + H2O2 + 2 NaOH = 2 H2 + Na2WO4
Ra + HOH = Ra(OH)2 + H2 =>
Ra + 2 HOH = Ra(OH)2 + H2
ZrOH + HNO3 = ZrNO3 + H2O =>
ZrOH + HNO3 = ZrNO3 + H2O
C6H5Br + Mg + C4H8O = C10H13O + MgBr2 =>
2 C6H5Br + Mg + 2 C4H8O = 2 C10H13O + MgBr2
MoCl4 + Cl2 = MoCl6 =>
MoCl4 + Cl2 = MoCl6
NH4Cl + CrPO4 = (NH4)3PO4 + CrCl3 =>
3 NH4Cl + CrPO4 = (NH4)3PO4 + CrCl3
Sr(OH)2(aq) + H2SO4(aq) = H2O + SrSO4 =>
Sr(OH)2(aq) + H2SO4(aq) = 2 H2O + SrSO4
PbH4 = Pb4 + H1 =>
4 PbH4 = Pb4 + 16 H1
(ZnOH)2SO4 + HNO3 = ZnSO4 + Zn(NO3)2 + H2O =>
(ZnOH)2SO4 + 2 HNO3 = ZnSO4 + Zn(NO3)2 + 2 H2O
H2SO4 + Na3[Co(NO2)6] = H3[Co(NO2)6] + Na2SO4 =>
3 H2SO4 + 2 Na3[Co(NO2)6] = 2 H3[Co(NO2)6] + 3 Na2SO4
CH3COOH + NaC2H3O3 = NaC2H3O2 + H2O + CO2 =>
CH3COOH + 4 NaC2H3O3 = 4 NaC2H3O2 + 2 H2O + 2 CO2
Cu + HNO3 = Cu2O + NO + H2 =>
8 Cu + 2 HNO3 = 4 Cu2O + 2 NO + H2
NaCl + HCl = NaCl2H =>
NaCl + HCl = NaCl2H
FeS2 + HNO3 = Fe(NO3)2 + H2SO4 + H2O + NO2 =>
FeS2 + 16 HNO3 = Fe(NO3)2 + 2 H2SO4 + 6 H2O + 14 NO2
PbCl2 + H2O = PbO + HCl =>
PbCl2 + H2O = PbO + 2 HCl
Ca(OH)2 + H2SO4(l) = CaSO4 + H2O =>
Ca(OH)2 + H2SO4(l) = CaSO4 + 2 H2O
Mg + NaCl = MgNaCl =>
Mg + NaCl = MgNaCl
FeSO4H2O = (FeOH)2SO4H2SO4 =>
2 FeSO4H2O = (FeOH)2SO4H2SO4
Pb(NO3)2 + NaI = PbI2 + Na(NO3) =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 Na(NO3)
NaO + C = Na2C2 + CO2 =>
2 NaO + 3 C = Na2C2 + CO2
CU + HNO3 = CU(NO3)2 + H2ONO2 =>
CU + 4 HNO3 = CU(NO3)2 + 2 H2ONO2
HNO3 + CaSi03 = Ca(NO3)2 + H2Si03 =>
2 HNO3 + CaSi03 = Ca(NO3)2 + H2Si03
Na2S2O3 + CuSO4 = Na2SO4 + CuS + SO2 =>
4 Na2S2O3 + 3 CuSO4 = 4 Na2SO4 + 3 CuS + 4 SO2
Na2S2O3 + ZnCl2 = NaCl + ZnS2O3 =>
Na2S2O3 + ZnCl2 = 2 NaCl + ZnS2O3
(CH3)2SiCl2 + H2O = HCl + [(CH3)2SiO] =>
(CH3)2SiCl2 + H2O = 2 HCl + [(CH3)2SiO]
HNO3 + NH4OH = NH4N + H2O =>
HNO3 + 7 NH4OH = 4 NH4N + 10 H2O
C18H34O2 + H2O = CO + H2 =>
C18H34O2 + 16 H2O = 18 CO + 33 H2
NaOBr + NaHSO3 = NaBr + NaHSO4 =>
NaOBr + NaHSO3 = NaBr + NaHSO4
IO + H2 = HIO =>
2 IO + H2 = 2 HIO
C4H7CHO + O2 = CO2 + H2O =>
2 C4H7CHO + 13 O2 = 10 CO2 + 8 H2O
Mg + Fe(NH4)2(SO4)2 = Mg(NH4)2(SO4)2 + Fe =>
Mg + Fe(NH4)2(SO4)2 = Mg(NH4)2(SO4)2 + Fe
FeCl2 + NaNO2 + HCl = FeCl3 + NaCl + H2O + NO =>
FeCl2 + NaNO2 + 2 HCl = FeCl3 + NaCl + H2O + NO
Na2S + O2 = Na2SO3 =>
2 Na2S + 3 O2 = 2 Na2SO3
CH3CH(OH)CH3 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO2 + CH3C(O)CH3 + H2O =>
5 CH3CH(OH)CH3 + K2Cr2O7 + 4 H2SO4 = Cr2(SO4)3 + K2SO2 + 5 CH3C(O)CH3 + 9 H2O
Na2Cr2O7 + Cu2O + H2O = Cu(OH)2 + NaOH + Cr2O3 =>
Na2Cr2O7 + 3 Cu2O + 7 H2O = 6 Cu(OH)2 + 2 NaOH + Cr2O3
Fe + HF = FeF3 + H2 =>
2 Fe + 6 HF = 2 FeF3 + 3 H2
Co(NO3)2 + Na2SO4 = CoSO4 + Na(NO3) =>
Co(NO3)2 + Na2SO4 = CoSO4 + 2 Na(NO3)
Zn(OH)2 + N = ZnN + OH =>
Zn(OH)2 + N = ZnN + 2 OH
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Cr2O3 + Ca(OH)2 + H2O = Ca[Cr(OH)4]2 =>
Cr2O3 + Ca(OH)2 + 3 H2O = Ca[Cr(OH)4]2
AlCl3 + Br2 = AlCl3Br{-} + Br{+} =>
AlCl3 + Br2 = AlCl3Br{-} + Br{+}
K2SO4(aq) + CaI2 = CaSO4(s) + KI(aq) =>
K2SO4(aq) + CaI2 = CaSO4(s) + 2 KI(aq)
AgNO3 + Pb(CIO3)2 = AgCIO3 + Pb(NO3)2 =>
2 AgNO3 + Pb(CIO3)2 = 2 AgCIO3 + Pb(NO3)2
H3PO4 + Mg(HO)2 = H2O + Mg3(PO4)2 =>
2 H3PO4 + 3 Mg(HO)2 = 6 H2O + Mg3(PO4)2
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Équations équilibrées sur12/11/24
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