| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 Cr3O + Si = 6 Cr + SiO2
Ge + HNO3 + HCl = GeCl4 + NO2 + H2O =>
Ge + 4 HNO3 + 4 HCl = GeCl4 + 4 NO2 + 4 H2O
CuCl2 + Ca3(PO4)2 = Ca3Cl2 + (PO4)2Cu =>
CuCl2 + Ca3(PO4)2 = Ca3Cl2 + (PO4)2Cu
Na + H3O = NaOH + H =>
Na + H3O = NaOH + 2 H
Cu + AgN = N + CuAg =>
Cu + AgN = N + CuAg
Be + PO4 = BePO4 =>
Be + PO4 = BePO4
(C6H12O6) + Ca(OH)2 = CaO2 + C2H5OH + H2O =>
(C6H12O6) + 6 Ca(OH)2 = 6 CaO2 + 3 C2H5OH + 3 H2O
ZnO + KOH + H2O = K2[Zn(OH)4] =>
ZnO + 2 KOH + H2O = K2[Zn(OH)4]
NaK = Na + K =>
NaK = Na + K
MnO4 + H2SO4 = MnSO4 + O2 + H2O =>
2 MnO4 + 2 H2SO4 = 2 MnSO4 + 3 O2 + 2 H2O
Fe2O3 + CO(g) = Fe(s) + CO2 =>
Fe2O3 + 3 CO(g) = 2 Fe(s) + 3 CO2
Co(SO4) + KI + KIO3 + H2O = Co(OH)2 + K2(SO4) + I2 =>
3 Co(SO4) + 5 KI + KIO3 + 3 H2O = 3 Co(OH)2 + 3 K2(SO4) + 3 I2
CaCO3 + HCl(aq) = CaCl2(aq) + H2O(l) + CO2(g) =>
CaCO3 + 2 HCl(aq) = CaCl2(aq) + H2O(l) + CO2(g)
Na2CO3(aq) = Na(aq) + CO3(aq) =>
Na2CO3(aq) = 2 Na(aq) + CO3(aq)
Cu(OH)2 + NaOH = Na2[Cu(OH)4] =>
Cu(OH)2 + 2 NaOH = Na2[Cu(OH)4]
Co(SO4) + KI + KIO3 + H2O = Co(OH)2 + K2(SO4) + I2 =>
3 Co(SO4) + 5 KI + KIO3 + 3 H2O = 3 Co(OH)2 + 3 K2(SO4) + 3 I2
CaS + NaCN = Ca(CN)2 + Na2S =>
CaS + 2 NaCN = Ca(CN)2 + Na2S
NaNO2 + Br2 + NaOH = NaNO3 + HBr + NaBr =>
NaNO2 + Br2 + NaOH = NaNO3 + HBr + NaBr
Ni(OH)2 + NaOH = NiO2 + Na + H2O =>
Ni(OH)2 + 2 NaOH = NiO2 + 2 Na + 2 H2O
FeC2O4 + HNO3 = Fe(NO3)3 + NO2 + CO2 + H2O =>
FeC2O4 + 6 HNO3 = Fe(NO3)3 + 3 NO2 + 2 CO2 + 3 H2O
MoO3 + Cl2O = Mo(ClO)6 =>
MoO3 + 3 Cl2O = Mo(ClO)6
Sodiumchloride + iron(iii)nitrate = sodiumnitrate + iron(iii)chloride =>
3 NaCl + Fe(NO3)3 = 3 NaNO3 + FeCl3
C10H16 + O2(g) = CO2(g) + H2O(l) =>
C10H16 + 14 O2(g) = 10 CO2(g) + 8 H2O(l)
[Cu(NH3)2]Cl2 + AgNO3 = AgCl + Cu(NO3)2 + NH3 =>
[Cu(NH3)2]Cl2 + 2 AgNO3 = 2 AgCl + Cu(NO3)2 + 2 NH3
Cu + Hg = Cu(Hg) =>
Cu + Hg = Cu(Hg)
PbS + H2SO4 = PbSO4 + SO2 + H2O =>
PbS + 4 H2SO4 = PbSO4 + 4 SO2 + 4 H2O
Zn(OH)2 + NH4OH = [Zn(NH3)4]{2+} + OH{-} + H2O =>
Zn(OH)2 + 4 NH4OH = [Zn(NH3)4]{2+} + 2 OH{-} + 4 H2O
I2 + NaHCO3 + H3AsO3 = H3AsO4 + NaI + H2O + CO2 =>
I2 + 2 NaHCO3 + H3AsO3 = H3AsO4 + 2 NaI + H2O + 2 CO2
C2 + H2O = C6H12O6 =>
3 C2 + 6 H2O = C6H12O6
F2 + Ca(OH)2 = OF2 + HF + CaF2 =>
4 F2 + Ca(OH)2 = 2 OF2 + 2 HF + CaF2
(CH3)3CCl + AgNO3 = AgCl + (CH3)3CONO2 =>
(CH3)3CCl + AgNO3 = AgCl + (CH3)3CONO2
AlBr3 + PbF4 = AlF3 + PbBr4 =>
4 AlBr3 + 3 PbF4 = 4 AlF3 + 3 PbBr4
Na + Cu(NO3)2 = Na(NO3)2 + Cu2 =>
2 Na + 2 Cu(NO3)2 = 2 Na(NO3)2 + Cu2
Mn{+2} + S2O8{-2} + OH{-} = MnO4{-} + SO4{-2} + H2O =>
2 Mn{+2} + 5 S2O8{-2} + 16 OH{-} = 2 MnO4{-} + 10 SO4{-2} + 8 H2O
O2(g) + H2O(l) + Fe(s) = Fe(OH)3(s) =>
3 O2(g) + 6 H2O(l) + 4 Fe(s) = 4 Fe(OH)3(s)
ZnCO3(s)(heated) = ZnO + CO2 =>
ZnCO3(s)(heated) = ZnO + CO2
NaOH + H2O2 = Na2O2 + H2O =>
2 NaOH + H2O2 = Na2O2 + 2 H2O
HOC6H4CH2OH + NaOH = NaOC6H4CH2ONa + H2O =>
HOC6H4CH2OH + 2 NaOH = NaOC6H4CH2ONa + 2 H2O
CH3CH2NO2 + O2 = CO2 + N2 + H2O =>
4 CH3CH2NO2 + 9 O2 = 8 CO2 + 2 N2 + 10 H2O
HCl + Fe2O3 = FeCl3 + H2O =>
6 HCl + Fe2O3 = 2 FeCl3 + 3 H2O
C5H10O2 + O2 = CO2 + H2O =>
2 C5H10O2 + 13 O2 = 10 CO2 + 10 H2O
Ca(OH)2 + *Ca(HCO3)2 = CaCO3 + H2O =>
Ca(OH)2 + *Ca(HCO3)2 = 2 CaCO3 + 2 H2O
ZnBr2 + Cl2 = ZnCl + Br2 =>
2 ZnBr2 + Cl2 = 2 ZnCl + 2 Br2
Ca(OH)2 + *Ca(HCO3)2 = CaCO3 + H2O =>
Ca(OH)2 + *Ca(HCO3)2 = 2 CaCO3 + 2 H2O
CH3Cl + I2 = CH3I + Cl2 =>
2 CH3Cl + I2 = 2 CH3I + Cl2
Co(SO4) + KI + KIO3 + H2O = Co(OH)2 + K2(SO4) + I2 =>
3 Co(SO4) + 5 KI + KIO3 + 3 H2O = 3 Co(OH)2 + 3 K2(SO4) + 3 I2
H3C6H5O7 + Na2CO3 = H2O + Na3C6H5O7 + CO2 =>
2 H3C6H5O7 + 3 Na2CO3 = 3 H2O + 2 Na3C6H5O7 + 3 CO2
Al + CuCl2 = AlCl3 + Cu =>
2 Al + 3 CuCl2 = 2 AlCl3 + 3 Cu
Ca(OH)2 + *Ca(HCO3)2 = CaCO3 + H2O =>
Ca(OH)2 + *Ca(HCO3)2 = 2 CaCO3 + 2 H2O
Cl{-}(aq) + H{+}(aq) + SO4{2-}(aq) = Cl2(g) + H2S(g) + H2O(l) =>
8 Cl{-}(aq) + 10 H{+}(aq) + SO4{2-}(aq) = 4 Cl2(g) + H2S(g) + 4 H2O(l)
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