| Équations équilibrées la veille | Équations équilibrées le lendemain |
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Fe{2+} + (C12H8N2) = Fe(C12H8N2)3{2+} =>
Fe{2+} + 3(C12H8N2) = Fe(C12H8N2)3{2+}
Mn2S6 + HNO3 = Mn(NO3)6 + H2S =>
Mn2S6 + 12 HNO3 = 2 Mn(NO3)6 + 6 H2S
Cu + Zn(No3)2 = Cu(No3)2 + Zn =>
Cu + Zn(No3)2 = Cu(No3)2 + Zn
Ca + CuO2 = CaO + Cu =>
2 Ca + CuO2 = 2 CaO + Cu
C2H5OH + K2Cr2O7 + HNO3 = Cr(NO3)2 + KNO3 + CH3COOH + H2O =>
2 C2H5OH + K2Cr2O7 + 6 HNO3 = 2 Cr(NO3)2 + 2 KNO3 + 2 CH3COOH + 5 H2O
V(CIO3)5 + Ca3(PO4)2 = V3(PO4)5 + Ca(CIO3)2 =>
6 V(CIO3)5 + 5 Ca3(PO4)2 = 2 V3(PO4)5 + 15 Ca(CIO3)2
Pb(CH3COO)2(aq) + K2CrO4(aq) = PbCrO4(cr) + KCH3COO(aq) =>
Pb(CH3COO)2(aq) + K2CrO4(aq) = PbCrO4(cr) + 2 KCH3COO(aq)
Na2(PO4) + AlCl3 = NaCl + Al2(PO4)3 =>
3 Na2(PO4) + 2 AlCl3 = 6 NaCl + Al2(PO4)3
Zn + NaNO3 + KOH + H2O = Na2[Zn(OH)4] + NH3 + K2[Zn(OH)4] =>
8 Zn + 2 NaNO3 + 14 KOH + 12 H2O = Na2[Zn(OH)4] + 2 NH3 + 7 K2[Zn(OH)4]
PbO + H = HO + Pb =>
PbO + H = HO + Pb
SO3{2-} + CrO4{2-} + H{+} = SO4{2-} + CrO2{-} + H2O =>
3 SO3{2-} + 2 CrO4{2-} + 2 H{+} = 3 SO4{2-} + 2 CrO2{-} + H2O
AgCl + Ca = CaCl + Ag =>
AgCl + Ca = CaCl + Ag
CaCO3 + H2CO4 = CaCO4 + H2CO3 =>
CaCO3 + H2CO4 = CaCO4 + H2CO3
HBr = H2 + Br2 =>
2 HBr = H2 + Br2
K2Cr2O7 + CaCl2 + H2SO4 = Cr2(SO4)3 + K2SO4 + CaSO4 + Cl2 + H2O =>
K2Cr2O7 + 3 CaCl2 + 7 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 CaSO4 + 3 Cl2 + 7 H2O
CHO(l) + O2(g) = CO2(g) + H2O(g) =>
4 CHO(l) + 3 O2(g) = 4 CO2(g) + 2 H2O(g)
NH4Cl + CaO = NH3 + CaCl2 + H2O =>
2 NH4Cl + CaO = 2 NH3 + CaCl2 + H2O
H2C7O4 + NaOH = Na2C7O4 + H2O =>
H2C7O4 + 2 NaOH = Na2C7O4 + 2 H2O
KMnO4 + C12H22O11 + H2SO4 = K2SO3 + CO2 + H2O + MnO2 =>
12 KMnO4 + C12H22O11 + 6 H2SO4 = 6 K2SO3 + 12 CO2 + 17 H2O + 12 MnO2
Au + HCl + HNO3 = NO + AuCl3 + H2O =>
Au + 3 HCl + HNO3 = NO + AuCl3 + 2 H2O
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Cu(NO3)2 + C5H8O2 = Cu(C5H7O2)2 + HNO3 =>
Cu(NO3)2 + 2 C5H8O2 = Cu(C5H7O2)2 + 2 HNO3
Sr(NO3)2 + KIO3 = K2(NO3)2 + Sr(IO3)2 =>
Sr(NO3)2 + 2 KIO3 = K2(NO3)2 + Sr(IO3)2
Si + NaOH + H2O = NaSiO3 + H2 =>
2 Si + 2 NaOH + 4 H2O = 2 NaSiO3 + 5 H2
NH4HSO4 + H2O = NH4OH + H2SO4 =>
NH4HSO4 + H2O = NH4OH + H2SO4
FeCl3 + H2S = FeS + HCl + S =>
2 FeCl3 + 3 H2S = 2 FeS + 6 HCl + S
PbS(s) + HBr(aq) = PbBr2(aq) + H2S(g) =>
PbS(s) + 2 HBr(aq) = PbBr2(aq) + H2S(g)
Na2S + PbSO3 = Na2SO3 + PbS =>
Na2S + PbSO3 = Na2SO3 + PbS
Ce(NO3)3 + H2O2 + NH4OH = CeO2 + HNO3 =>
6 Ce(NO3)3 + 7 H2O2 + NH4OH = 6 CeO2 + 19 HNO3
As2O3 + NO3 + H2O = H3AsO4 + N2O =>
5 As2O3 + 4 NO3 + 15 H2O = 10 H3AsO4 + 2 N2O
HNO3 + Cr2O7 = NO3 + Cr + H2O =>
14 HNO3 + Cr2O7 = 14 NO3 + 2 Cr + 7 H2O
Al(NO3)3 + Na3PO4 = AlPO4 + NaNO3(aq) =>
Al(NO3)3 + Na3PO4 = AlPO4 + 3 NaNO3(aq)
CH3CO2H + NH3 = CH3CO2{-} + NH4{+} =>
CH3CO2H + NH3 = CH3CO2{-} + NH4{+}
FeO + CaH2 = Fe + CaO + H2O =>
2 FeO + CaH2 = 2 Fe + CaO + H2O
As + H2SO4 = HAsO2 + SO2 + H2 =>
2 As + 2 H2SO4 = 2 HAsO2 + 2 SO2 + H2
Ca3(PO4)2 + CO = P + CaO + CO2 =>
Ca3(PO4)2 + 5 CO = 2 P + 3 CaO + 5 CO2
BaCO3 + H2SO4 = Ba2SO4 + HCO3 =>
2 BaCO3 + H2SO4 = Ba2SO4 + 2 HCO3
H2Cr2O7 + H2O2 = H2O + H2Cr2O9 =>
H2Cr2O7 + 2 H2O2 = 2 H2O + H2Cr2O9
NaCl + Ag = NaAg + Cl2 =>
2 NaCl + 2 Ag = 2 NaAg + Cl2
MoS2 + H2O = MoO4{2-} + SO4{2-} + H{+} + {-} =>
MoS2 + 12 H2O = MoO4{2-} + 2 SO4{2-} + 24 H{+} + 18e
NaH(CO3) = Na + H2O + CO + O2 =>
4 NaH(CO3) = 4 Na + 2 H2O + 4 CO + 3 O2
NiS + O = NiO + SO =>
NiS + 2 O = NiO + SO
Na2CO3 + Ca(OH)2 = CaCO3 + NaOH =>
Na2CO3 + Ca(OH)2 = CaCO3 + 2 NaOH
Fe + S = Fe3S =>
3 Fe + S = Fe3S
As2S3 + HNO3 = SO3{2-} + NO2 + H2O + AsO4{3-} + H{+} =>
As2S3 + 22 HNO3 = 3 SO3{2-} + 22 NO2 + 5 H2O + 2 AsO4{3-} + 12 H{+}
H2O(g) + K(s) = KOH(s) + H2 =>
2 H2O(g) + 2 K(s) = 2 KOH(s) + H2
Cr2H5Cl + NaPb = (Cr2H5)4Pb + NaCl + Pb =>
4 Cr2H5Cl + 4 NaPb = (Cr2H5)4Pb + 4 NaCl + 3 Pb
Sn(OH) + FeBr = SnBr + Fe(OH) =>
Sn(OH) + FeBr = SnBr + Fe(OH)
CaCO3 + Na2C2O4 = CaC2O4 + Na2CO3 =>
CaCO3 + Na2C2O4 = CaC2O4 + Na2CO3
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Équations équilibrées sur04/21/25
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