| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 Nb + 5 H2 = 2 NbH5
CrOHCl2 + HCl = CrCl3 + H2O =>
CrOHCl2 + HCl = CrCl3 + H2O
KBr + MgSO4 = KSO4 + BrMg =>
KBr + MgSO4 = KSO4 + BrMg
C = C2 =>
2 C = C2
ClO{-} + H{+} = HClO =>
ClO{-} + H{+} = HClO
CaO + MgSO4 = CaSO4 + MgO =>
CaO + MgSO4 = CaSO4 + MgO
LiNO3 + AlCl3 = Al(NO3)3 + LiCl =>
3 LiNO3 + AlCl3 = Al(NO3)3 + 3 LiCl
KNO3 + LiHCO3 = LiNO3 + KHCO3 =>
KNO3 + LiHCO3 = LiNO3 + KHCO3
ZnCl2 + Na2(CO3) = Zn(CO3) + NaCl =>
ZnCl2 + Na2(CO3) = Zn(CO3) + 2 NaCl
NaCl + H2(SO4) + MnO4 = MnSO4 + Na2SO4 + Cl2 + H2O =>
6 NaCl + 4 H2(SO4) + MnO4 = MnSO4 + 3 Na2SO4 + 3 Cl2 + 4 H2O
CH3CH2CH2COOH + CH3CH2CH2CH2CH2OH = CH3CH2CH2COOCH2CH2CH2CH2CH3 + H2O =>
CH3CH2CH2COOH + CH3CH2CH2CH2CH2OH = CH3CH2CH2COOCH2CH2CH2CH2CH3 + H2O
MgCl2(aq)CuSO4(aq) = MgSO4(s)CuCl2(aq) =>
MgCl2(aq)CuSO4(aq) = MgSO4(s)CuCl2(aq)
HBr + Cl2 = HCl + Br21 =>
42 HBr + 21 Cl2 = 42 HCl + 2 Br21
Al2O3 + CaCO3 = Ca(AlO2)2 + CO2 =>
Al2O3 + CaCO3 = Ca(AlO2)2 + CO2
S2Cl2 + NH4Cl = S4N4 + S + HCl =>
6 S2Cl2 + 4 NH4Cl = S4N4 + 8 S + 16 HCl
Ca3O6P2 + Na = Na3O3P + Ca =>
Ca3O6P2 + 6 Na = 2 Na3O3P + 3 Ca
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
MgCO3 + C2H4O2 = CO2 + Mg(CH3COO)2 + H2O =>
MgCO3 + 2 C2H4O2 = CO2 + Mg(CH3COO)2 + H2O
Cl2 + N2H4 = Cl{-} + N2 + H{+} =>
2 Cl2 + N2H4 = 4 Cl{-} + N2 + 4 H{+}
Al(NO3)2 + KI = AlI + (NO3)2K =>
Al(NO3)2 + KI = AlI + (NO3)2K
SO4(aq) + Ba(aq) = Ba(SO4)(s) =>
SO4(aq) + Ba(aq) = Ba(SO4)(s)
C2H6O + KOH + KMnO4 = C2H4O2 + K2MnO4 + H2O =>
C2H6O + 4 KOH + 4 KMnO4 = C2H4O2 + 4 K2MnO4 + 3 H2O
H2S + KOH = S(OH)2 + KH =>
H2S + 2 KOH = S(OH)2 + 2 KH
Cu + H2SO4 = CuSO4 + H2O + SO2 =>
Cu + 2 H2SO4 = CuSO4 + 2 H2O + SO2
Mo + HCl = MoCl2 + H2 =>
Mo + 2 HCl = MoCl2 + H2
BaCl2(aq) + Cu(NO3)2 = BaCu + Cl(NO3) =>
BaCl2(aq) + Cu(NO3)2 = BaCu + 2 Cl(NO3)
NaHCO3(aq) + H(aq) = Na(aq) + H2O(l) + CO2(g) =>
NaHCO3(aq) + H(aq) = Na(aq) + H2O(l) + CO2(g)
HAsO3{2-} + S2O8{2-} + H2O = H2AsO4{-} + SO4{2-} + H{+} =>
HAsO3{2-} + S2O8{2-} + H2O = H2AsO4{-} + 2 SO4{2-} + H{+}
(SO3)2{-} + Cl2 + OH({-}) = (SO4)2{-} + Cl{-} + H2O =>
(SO3)2{-} + 2 Cl2 + 4 OH({-}) = (SO4)2{-} + 4 Cl{-} + 2 H2O
CO2 + CaCl2 = CaCO3 + COCl2 =>
2 CO2 + CaCl2 = CaCO3 + COCl2
Al2O3 + CaOH = CaAlO2 + H2O =>
Al2O3 + 2 CaOH = 2 CaAlO2 + H2O
MgO + C6H8O7 = Mg2C6H4O7 + H2O =>
2 MgO + C6H8O7 = Mg2C6H4O7 + 2 H2O
Co + HNO3 = Co(NO3)2 + N2 + H2O =>
5 Co + 12 HNO3 = 5 Co(NO3)2 + N2 + 6 H2O
Cu + H{+} + NO3{-}— = Cu{2+} + NO + H2O =>
3 Cu + 8 H{+} + 2 NO3{-}— = 3 Cu{2+} + 2 NO + 4 H2O
H2O + NO3 = NH3 + OH =>
6 H2O + NO3 = NH3 + 9 OH
Ti(SO4)2 + NaBO3 = Na2SO4 + Ti(BO3)4 =>
Ti(SO4)2 + 4 NaBO3 = 2 Na2SO4 + Ti(BO3)4
Ba(NO3)2 + NaSO4 = NaNO3 + Ba(SO4)2 =>
Ba(NO3)2 + 2 NaSO4 = 2 NaNO3 + Ba(SO4)2
S8 + CO2 = SO3 + C =>
S8 + 12 CO2 = 8 SO3 + 12 C
HC2H3O2 + LiHSO3 = H2SO3 + LiC2H3O2 =>
HC2H3O2 + LiHSO3 = H2SO3 + LiC2H3O2
Cu(OH)2 + HCl = CuCl2 + H2O = =>
Cu(OH)2 + 2 HCl = CuCl2 + 2 H2O
Cr(OH)3 + H2 = Cr + H2O =>
2 Cr(OH)3 + 3 H2 = 2 Cr + 6 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
Ag2O + HNO3 = AgNO3 + H2O =>
Ag2O + 2 HNO3 = 2 AgNO3 + H2O
Zn + SbO2{-} + H{+} = SbH3 + H2O + Zn{2+} =>
3 Zn + SbO2{-} + 7 H{+} = SbH3 + 2 H2O + 3 Zn{2+}
C2H5OH + CO(NH2)2 = H2NCH2CH2OH + H2 + CO =>
2 C2H5OH + CO(NH2)2 = 2 H2NCH2CH2OH + H2 + CO
SCl2 + NaF = SF4*S2Cl2 + NaCl =>
3 SCl2 + 4 NaF = SF4*S2Cl2 + 4 NaCl
HTiO3 = TiO2 + OH =>
HTiO3 = TiO2 + OH
Al + NaOH + H2 = NaAlH4 + NaAlO2 =>
2 Al + 2 NaOH + H2 = NaAlH4 + NaAlO2
Cu(CH3COO)2 + NaCrO4 = Cu(CrO4)2 + NaCH3COO =>
Cu(CH3COO)2 + 2 NaCrO4 = Cu(CrO4)2 + 2 NaCH3COO
C4H16(g) + O2(g) = CO2 + H2O =>
C4H16(g) + 8 O2(g) = 4 CO2 + 8 H2O
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