| Équations équilibrées la veille | Équations équilibrées le lendemain |
PbO + NaOH = Na(PbO2H)
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
FeBr3 + Sr(OH)2 = SrBr2 + Fe(OH)3 =>
2 FeBr3 + 3 Sr(OH)2 = 3 SrBr2 + 2 Fe(OH)3
C2H5Cl + NH4Cl = C2H7N + HCl =>
C2H5Cl + NH4Cl = C2H7N + 2 HCl
Pb(NO3)2 + (KI)2 = K(NO3) + PbI2 =>
Pb(NO3)2 + (KI)2 = 2 K(NO3) + PbI2
C13H16N2O2 + C13H28 + H2O2 = C10H12NO2 + H2O =>
13 C13H16N2O2 + 7 C13H28 + 72 H2O2 = 26 C10H12NO2 + 118 H2O
NaV3O8 + NH4Cl = NH4V3O8 + NaCl =>
NaV3O8 + NH4Cl = NH4V3O8 + NaCl
(Cr2O7{-}) + (SO3{-}) + H3O{+} = Cr3{+} + SO42{-} + H2O =>
234(Cr2O7{-}) + 37(SO3{-}) + 390 H3O{+} = 156 Cr3{+} + 37 SO42{-} + 585 H2O
FeCO3 + H2SO4 = FeSO4 + H2O(l) + CO2 =>
FeCO3 + H2SO4 = FeSO4 + H2O(l) + CO2
SO2Cl + HI = H2S + H2O + HCl + I2 =>
2 SO2Cl + 14 HI = 2 H2S + 4 H2O + 2 HCl + 7 I2
sulfuricacid + Pb(C2H3O2)2 = PbSO4 + aceticacid =>
H2SO4 + Pb(C2H3O2)2 = PbSO4 + 2 C2H4O2
KMnO4 + AlCl3 + H2SO4 = Al2(SO4)3 + K2SO4 + MnSO4 + H2O + Cl2 =>
6 KMnO4 + 10 AlCl3 + 24 H2SO4 = 5 Al2(SO4)3 + 3 K2SO4 + 6 MnSO4 + 24 H2O + 15 Cl2
CH4N2O + KNO3 = K2O + N2 + CO2 + H2O =>
5 CH4N2O + 6 KNO3 = 3 K2O + 8 N2 + 5 CO2 + 10 H2O
Al + (I)2(O)3 = (Al)2(O)3 + I =>
2 Al + (I)2(O)3 = (Al)2(O)3 + 2 I
CuC2H12O2 + KOH = CuOH + KC2H12O2 =>
CuC2H12O2 + KOH = CuOH + KC2H12O2
Ca(NO3)2 + Li2CO3 = Ca(CO3) + LiNO3 =>
Ca(NO3)2 + Li2CO3 = Ca(CO3) + 2 LiNO3
Na2SiO3(aq) + CaCl2(aq) = CaSiO3(s) + NaCl(aq) =>
Na2SiO3(aq) + CaCl2(aq) = CaSiO3(s) + 2 NaCl(aq)
PbCl4 = Pb + Cl1 =>
PbCl4 = Pb + 4 Cl1
C + Fe2O3 = FeC + O2 =>
4 C + 2 Fe2O3 = 4 FeC + 3 O2
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
NaHSO4 = Na2SO4 + H2SO4 =>
2 NaHSO4 = Na2SO4 + H2SO4
C6H5CH2CH2CH3 + KMnO4 + KOH = C6H5COOK + K2MnO4 + H2O =>
7 C6H5CH2CH2CH3 + 66 KMnO4 + 75 KOH = 9 C6H5COOK + 66 K2MnO4 + 57 H2O
PCl3 = P2 + Cl2 =>
2 PCl3 = P2 + 3 Cl2
Al2 + H2O = AlO + H2 =>
Al2 + 2 H2O = 2 AlO + 2 H2
K2(Cr2O7) + KI + H2(SO4) = I2 + H2O + Cr2(SO4)3 + K2(SO4) =>
K2(Cr2O7) + 6 KI + 7 H2(SO4) = 3 I2 + 7 H2O + Cr2(SO4)3 + 4 K2(SO4)
Ba(OH)2 + H2(SO4) = BaSO4 + H2O =>
Ba(OH)2 + H2(SO4) = BaSO4 + 2 H2O
Ni(OH)2 + HCl = NiCl2 + H2O(l) =>
Ni(OH)2 + 2 HCl = NiCl2 + 2 H2O(l)
HC2H3O2 = H2 + C2H3O2 =>
2 HC2H3O2 = H2 + 2 C2H3O2
Al2O3 + CO = Al + CO2 =>
Al2O3 + 3 CO = 2 Al + 3 CO2
OHC2H4NH3(HCl) + KMnO4 = O2HC2H2NO2 + H2 + Cl2 + KMnCl =>
8 OHC2H4NH3(HCl) + 6 KMnO4 = 8 O2HC2H2NO2 + 24 H2 + Cl2 + 6 KMnCl
Mn + HBr = MnBr + H =>
Mn + HBr = MnBr + H
CO + H3 = CH4 + H2O =>
CO + 2 H3 = CH4 + H2O
AgNO3 + NH4OH + CH3CHO = Ag + CH3COOH + NH4{+} + NO3{-} =>
6 AgNO3 + 4 NH4OH + 7 CH3CHO = 6 Ag + 7 CH3COOH + 5 NH4{+} + 5 NO3{-}
Na2SO4 + HNO3 = Na(NO3)2 + H2O + SO2 =>
Na2SO4 + 4 HNO3 = 2 Na(NO3)2 + 2 H2O + SO2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Pb(CH3COO)2 + NiSO4 = PbSO4 + Ni(CH3COO)2 =>
Pb(CH3COO)2 + NiSO4 = PbSO4 + Ni(CH3COO)2
Me + N2 = Me3N2 =>
3 Me + N2 = Me3N2
Pb2(OH)4 + HCl = PbCl2 + H2O =>
Pb2(OH)4 + 4 HCl = 2 PbCl2 + 4 H2O
Na2CO3 + H4C2O3 = C3H5NaO2 + H2O + CO2 =>
3 Na2CO3 + 14 H4C2O3 = 6 C3H5NaO2 + 13 H2O + 13 CO2
Fe2(SO4)3 + KSCN = K2SO4 + Fe(SCN)3 =>
Fe2(SO4)3 + 6 KSCN = 3 K2SO4 + 2 Fe(SCN)3
CuCrO4 = Cu2 + CrO4 =>
2 CuCrO4 = Cu2 + 2 CrO4
C6H10O5(aq) + O2(s) = CO2(g) + H2O(g) =>
C6H10O5(aq) + 6 O2(s) = 6 CO2(g) + 5 H2O(g)
KPO4 + HP = P + KP + H2O =>
KPO4 + 8 HP = 8 P + KP + 4 H2O
NaBr + H2SO4 = Br2 + SO2 + H2O + Na2SO4 =>
2 NaBr + 2 H2SO4 = Br2 + SO2 + 2 H2O + Na2SO4
H2O + KNO3 = HNO3 + K2O =>
H2O + 2 KNO3 = 2 HNO3 + K2O
KMnO4 + C4H7N3 = C4HN3O4 + KOH + MnO2 + H2O =>
14 KMnO4 + 3 C4H7N3 = 3 C4HN3O4 + 14 KOH + 14 MnO2 + 2 H2O
(CuNO3)2 + Fe = Fe(NO3)2 + Cu =>
(CuNO3)2 + Fe = Fe(NO3)2 + 2 Cu
C3H8O3 + H2 = C3H8O + H2O =>
C3H8O3 + 2 H2 = C3H8O + 2 H2O
Zn + S8 = ZnS269 =>
8 Zn + 269 S8 = 8 ZnS269
H{+} + Cr2O7{2–} + Ni = Cr{3+} + Ni{2+} + H2O =>
14 H{+} + Cr2O7{2–} + 5 Ni = 2 Cr{3+} + 5 Ni{2+} + 7 H2O
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