| Équations équilibrées la veille |
2 KMnO4 + 5 NO2 + 3 H2SO4 = 2 MnSO4 + 5 NO3 + K2SO4 + 3 H2O
CN + H2O = CNH + OH =>
CN + H2O = CNH + OH
Na2[Zn(OH)4] + HCl = ZnCl2 + NaOH + H2O =>
Na2[Zn(OH)4] + 2 HCl = ZnCl2 + 2 NaOH + 2 H2O
Pb(OH)2 + Na2S = PbS + NaOH =>
Pb(OH)2 + Na2S = PbS + 2 NaOH
Sn(NO3)4 + Na2S = Sn2S4 + NaNO3 =>
2 Sn(NO3)4 + 4 Na2S = Sn2S4 + 8 NaNO3
HIO3 + H2SO3 = HI + H2SO4 =>
HIO3 + 3 H2SO3 = HI + 3 H2SO4
H2S + Na2SO3 = H2SO4 + Na2S =>
3 H2S + 4 Na2SO3 = 3 H2SO4 + 4 Na2S
NH4VO3 + H2SO4 + Zn = VO2 + (NH4)2SO4 + H2O + ZnSO4 =>
2 NH4VO3 + 2 H2SO4 + Zn = 2 VO2 + (NH4)2SO4 + 2 H2O + ZnSO4
Na3Po4(aq) + FeCl3(aq) = NaCl(aq) + FePo4(s) =>
Na3Po4(aq) + FeCl3(aq) = 3 NaCl(aq) + FePo4(s)
Cr(NO3)3 = Cr2O3 + NO2 + O2 =>
4 Cr(NO3)3 = 2 Cr2O3 + 12 NO2 + 3 O2
C2H6(g) + O(g) = CO2(g) + H2O =>
C2H6(g) + 7 O(g) = 2 CO2(g) + 3 H2O
FeSO4(aq) + NaOH(aq) = Fe(OH)2 + Na2SO4(aq) =>
FeSO4(aq) + 2 NaOH(aq) = Fe(OH)2 + Na2SO4(aq)
PbS + O3 = PbSO3 =>
PbS + O3 = PbSO3
NaCl + H2O2 = NaOCl + H2O =>
NaCl + H2O2 = NaOCl + H2O
C2H4(OH)2 + HNO3 = C2H4(ONO2)2 + H2O =>
C2H4(OH)2 + 2 HNO3 = C2H4(ONO2)2 + 2 H2O
FeS(s) + HCl(aq) = FeCl2(aq) + H2S(g) =>
FeS(s) + 2 HCl(aq) = FeCl2(aq) + H2S(g)
C3H7Cl + Na = C3H7Na + Cl2 =>
2 C3H7Cl + 2 Na = 2 C3H7Na + Cl2
C3H6 = C9H18 =>
3 C3H6 = C9H18
HNO3 + (NH2)HSO3 = H2SO4 + N20 + H2O =>
15 HNO3 + 25(NH2)HSO3 = 25 H2SO4 + 2 N20 + 20 H2O
CuSO4(aq) + NH3(aq) = Cu(NH3)4SO4 =>
CuSO4(aq) + 4 NH3(aq) = Cu(NH3)4SO4
Zn + O2 = ZnO =>
2 Zn + O2 = 2 ZnO
Cu5FeS4 + O2 = Cu + FeO + SO2 =>
2 Cu5FeS4 + 9 O2 = 10 Cu + 2 FeO + 8 SO2
H2S + Na2SO3 = H2SO4 + Na2S =>
3 H2S + 4 Na2SO3 = 3 H2SO4 + 4 Na2S
C4H6 + H2 = C4H10 =>
C4H6 + 2 H2 = C4H10
MnO4{-} + H2O + {-} = Mn{2+} + OH{-} =>
MnO4{-} + 4 H2O + 5e = Mn{2+} + 8 OH{-}
Ba + H2SiO3 = BaSiO3 + H2 =>
Ba + H2SiO3 = BaSiO3 + H2
CaCO3(s) + HNO3 = Ca(NO3)2 + H2CO3 =>
CaCO3(s) + 2 HNO3 = Ca(NO3)2 + H2CO3
Na + Pb2{+} = Na{+} + Pb =>
Na + Pb2{+} = Na{+} + 2 Pb
Na2CO3 + B2O3 = NaBO2 + CO2 =>
Na2CO3 + B2O3 = 2 NaBO2 + CO2
NiS + HNO3 = Ni(NO3)2 + NO + S + H2O =>
3 NiS + 8 HNO3 = 3 Ni(NO3)2 + 2 NO + 3 S + 4 H2O
NaH2PO4 + Ca(NO3)2 = Ca(H2PO4) + Na(NO3)2 =>
NaH2PO4 + Ca(NO3)2 = Ca(H2PO4) + Na(NO3)2
Co(NO3)3 + (NH4)2S = Co2S3 + NH4NO3 =>
2 Co(NO3)3 + 3(NH4)2S = Co2S3 + 6 NH4NO3
Fe(s) + Cl2(g) = FeCl3(s) =>
2 Fe(s) + 3 Cl2(g) = 2 FeCl3(s)
Si3N4 + HF = SiF4 + NH3 =>
Si3N4 + 12 HF = 3 SiF4 + 4 NH3
K3N + MgBr2 = Mg3N2 + KBr =>
2 K3N + 3 MgBr2 = Mg3N2 + 6 KBr
K2SO4 + PbCO3 = PbSO4 + K2CO3 =>
K2SO4 + PbCO3 = PbSO4 + K2CO3
SO3(g) + H2O(i) = H2SO4(aq) =>
SO3(g) + H2O(i) = H2SO4(aq)
CH2O2 + NaOH = HCO2Na + H2O =>
CH2O2 + NaOH = HCO2Na + H2O
CH3CH2CH2OH + NaOH = CH3CH2CH2ONa + H2O =>
CH3CH2CH2OH + NaOH = CH3CH2CH2ONa + H2O
Fe3O4 + HI = FeI2 + FeI3 + H2O =>
Fe3O4 + 8 HI = FeI2 + 2 FeI3 + 4 H2O
Na2TeO4 + HCl = H2TeO3 + NaCl + Cl2 + H2O =>
Na2TeO4 + 4 HCl = H2TeO3 + 2 NaCl + Cl2 + H2O
Zn(OH)2 + KCl = ZnCl2 + KOH =>
Zn(OH)2 + 2 KCl = ZnCl2 + 2 KOH
Cr + Pb{2+} = Cr3{+} + Pb =>
6 Cr + Pb{2+} = 2 Cr3{+} + Pb
C2H3O2 + NaOH = H2O + CO2 + Na =>
C2H3O2 + 7 NaOH = 5 H2O + 2 CO2 + 7 Na
C4H6O6 + O2 = CO2 + H2O =>
2 C4H6O6 + 5 O2 = 8 CO2 + 6 H2O
NH4Cl + KOH = NH3 + H2O + KCl =>
NH4Cl + KOH = NH3 + H2O + KCl
CuCl + C2H2 = HCl + CuC =>
2 CuCl + C2H2 = 2 HCl + 2 CuC
Zn{2+} + HS{-} = ZnS + H{+} =>
Zn{2+} + HS{-} = ZnS + H{+}
Hg(NO3)2 = HgO + NO2 + O2 =>
2 Hg(NO3)2 = 2 HgO + 4 NO2 + O2
CuSO4 + Zn(NO3)2 = CuNO3 + Zn(SO4)2 =>
2 CuSO4 + Zn(NO3)2 = 2 CuNO3 + Zn(SO4)2
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Équations équilibrées sur10/23/24
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