| Équations équilibrées la veille | Équations équilibrées le lendemain |
3 CuCO3(s) + 6 KI = I3 + 3 K2CO3 + 3 CuI
S2O3{-2} + I3{-} = S4O6{-} + I{-} =>
4 S2O3{-2} + 3 I3{-} = 2 S4O6{-} + 9 I{-}
Zn + Pb(CH3COO)2*3H2O = Zn(CH3COO)2*3H2O + Pb =>
Zn + Pb(CH3COO)2*3H2O = Zn(CH3COO)2*3H2O + Pb
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Cr(NO3)3 + K2(CO3) = Cr2(CO3)3 + K(NO3) =>
2 Cr(NO3)3 + 3 K2(CO3) = Cr2(CO3)3 + 6 K(NO3)
I2(s) + NaBr(ac) = IBr + Na =>
I2(s) + 2 NaBr(ac) = 2 IBr + 2 Na
Hg(OH)2 + (H3)P(O4) = (Hg3)(PO4)2 + H2O =>
3 Hg(OH)2 + 2(H3)P(O4) = (Hg3)(PO4)2 + 6 H2O
S + H2O = SO2 + H2 =>
S + 2 H2O = SO2 + 2 H2
C7H6O2 + Ba(OH)2 = H2O + Ba(C7H5O2)2 =>
2 C7H6O2 + Ba(OH)2 = 2 H2O + Ba(C7H5O2)2
CH3CH2CHCH2 + Cl2 = CH3CH2CHClCH2Cl =>
CH3CH2CHCH2 + Cl2 = CH3CH2CHClCH2Cl
[Fe(H2O)6]{3+} + OH{-} = FeOOH + H2O =>
[Fe(H2O)6]{3+} + 3 OH{-} = FeOOH + 7 H2O
S + H2O = H2S + OH =>
S + 2 H2O = H2S + 2 OH
C2H6O2 + O2 = CO2 + H2O =>
2 C2H6O2 + 5 O2 = 4 CO2 + 6 H2O
S + H2O = H2S + OH =>
S + 2 H2O = H2S + 2 OH
N7 + H2 = NH3 =>
2 N7 + 21 H2 = 14 NH3
K4C = K + C =>
K4C = 4 K + C
Sn(SO4) + K2Cr2O7 + H2SO4 = Sn2(SO4)4 + K2SO4 + Cr2(SO4)3 + H2O =>
6 Sn(SO4) + 2 K2Cr2O7 + 14 H2SO4 = 3 Sn2(SO4)4 + 2 K2SO4 + 2 Cr2(SO4)3 + 14 H2O
H2 + Br2 = Br2H2 =>
H2 + Br2 = Br2H2
NaVO3 + Zn + HCl = NaCl + VCl3 + ZnCl2 + H2O =>
NaVO3 + Zn + 6 HCl = NaCl + VCl3 + ZnCl2 + 3 H2O
Ni2O3 + Fe + H2O = Ni(OH)2 + Fe(OH)2 =>
Ni2O3 + Fe + 3 H2O = 2 Ni(OH)2 + Fe(OH)2
CuSO4 + Na2SO3 + H2O = Cu2O + NaHSO4 + SO2 =>
4 CuSO4 + 3 Na2SO3 + 3 H2O = 2 Cu2O + 6 NaHSO4 + SO2
(NH4)3 + P = NH4P =>
(NH4)3 + 3 P = 3 NH4P
CO2(g) + HCl(aq) = CO2Cl(g) + H(aq) =>
CO2(g) + HCl(aq) = CO2Cl(g) + H(aq)
CO + CaO = Ca + CO2 =>
CO + CaO = Ca + CO2
AgNO3 + NaBH4 + H2O = Ag + NaNO3 + B(OH)3 + H2 =>
2 AgNO3 + 2 NaBH4 + 6 H2O = 2 Ag + 2 NaNO3 + 2 B(OH)3 + 7 H2
CuSO4 + Na2SO3 + H2O = Cu2O + NaHSO4 + SO2 =>
4 CuSO4 + 3 Na2SO3 + 3 H2O = 2 Cu2O + 6 NaHSO4 + SO2
K2S + KMnO4 + KOH = K2SO3 + K2MnO4 + H2O =>
K2S + 6 KMnO4 + 6 KOH = K2SO3 + 6 K2MnO4 + 3 H2O
SO4 + N2 = N2O4 + S =>
SO4 + N2 = N2O4 + S
Al + H2SO4 = Al(SO4)3 + H2S + H2O =>
4 Al + 15 H2SO4 = 4 Al(SO4)3 + 3 H2S + 12 H2O
K(s) + Zn(NO3)2(aq) = Zn(aq) + K(NO3)2(s) =>
K(s) + Zn(NO3)2(aq) = Zn(aq) + K(NO3)2(s)
FeCl3 + NH3 + H2O + H2 = FeO + NH4Cl =>
2 FeCl3 + 6 NH3 + 2 H2O + H2 = 2 FeO + 6 NH4Cl
HNO3 + Pb(ClO4)2 = HClO4 + Pb(NO3)2 =>
2 HNO3 + Pb(ClO4)2 = 2 HClO4 + Pb(NO3)2
C2H4 + C2H6O = C4H10O =>
C2H4 + C2H6O = C4H10O
C2H5OH + CO = HCOOC2H5 =>
C2H5OH + CO = HCOOC2H5
Pb(CO3)2 + CuO = PbO2 + CuCO3 =>
Pb(CO3)2 + 2 CuO = PbO2 + 2 CuCO3
NaOH + VCl5 = V(OH)5 + NaCl =>
5 NaOH + VCl5 = V(OH)5 + 5 NaCl
Mg(OH)2 + NO2 = Mg(NO3)2 + H2 =>
Mg(OH)2 + 2 NO2 = Mg(NO3)2 + H2
SO2 + HI = S2 + I2 + H2O =>
2 SO2 + 8 HI = S2 + 4 I2 + 4 H2O
Pb + H2SO4 = SO2 + H2O + PbSO4 =>
Pb + 2 H2SO4 = SO2 + 2 H2O + PbSO4
SO2 + O + H0 = H2SO4 =>
SO2 + 2 O + 2 H0 = H2SO4
FeP + Na2CO3 + O2 = Fe2O3 + Na3PO4 + CO2 =>
2 FeP + 3 Na2CO3 + 4 O2 = Fe2O3 + 2 Na3PO4 + 3 CO2
NH4OH + LiCl = NH4Cl + LiOH =>
NH4OH + LiCl = NH4Cl + LiOH
CrBr3 + NaOH + Cl2 = Na2CrO4 + NaBrO3 + NaCl + H2O =>
2 CrBr3 + 52 NaOH + 21 Cl2 = 2 Na2CrO4 + 6 NaBrO3 + 42 NaCl + 26 H2O
Ni(OH)2 + H2(SO4) = Ni(SO4) + H2O =>
Ni(OH)2 + H2(SO4) = Ni(SO4) + 2 H2O
[Cu(NH3)4]{2+} + K4[Fe(CN)6] = CuK2[Fe(CN)6] + K{+} + (NH3)4 =>
[Cu(NH3)4]{2+} + K4[Fe(CN)6] = CuK2[Fe(CN)6] + 2 K{+} + (NH3)4
K2Cr2O7 + H2S + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O =>
4 K2Cr2O7 + 3 H2S + 13 H2SO4 = 4 Cr2(SO4)3 + 4 K2SO4 + 16 H2O
Mg + KNO3 = MgNO3 + K2 =>
2 Mg + 2 KNO3 = 2 MgNO3 + K2
NaHCO3 + KOH = NaKCO3 + H2O =>
NaHCO3 + KOH = NaKCO3 + H2O
FeCl3(aq) + Pb(NO3)2(aq) = Fe(NO3)3 + PbCl2 =>
2 FeCl3(aq) + 3 Pb(NO3)2(aq) = 2 Fe(NO3)3 + 3 PbCl2
Fe2(SO4)3 + Pb(NO3)2 = Fe(NO3)3 + Pb(SO4) =>
Fe2(SO4)3 + 3 Pb(NO3)2 = 2 Fe(NO3)3 + 3 Pb(SO4)
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