| Équations équilibrées la veille | Équations équilibrées le lendemain |
5 S + 6 NO3{-} + 2 H2O = 5 SO4{2-} + 3 N2 + 4 H{+}
CH3CH2OH + HBr = CH3CH2CH2Br + H2O =>
3 CH3CH2OH + 2 HBr = 2 CH3CH2CH2Br + 3 H2O
Cr(OH)3 + Ca(OH)2 = Ca(CrO2)2 + H2O =>
2 Cr(OH)3 + Ca(OH)2 = Ca(CrO2)2 + 4 H2O
C4H11Cl + NaOH = C4H10 + NaCl + H2O =>
C4H11Cl + NaOH = C4H10 + NaCl + H2O
Na3(AsO4) + ZnI2 = NaI + Zn3(AsO4)2 =>
2 Na3(AsO4) + 3 ZnI2 = 6 NaI + Zn3(AsO4)2
C2H6 + Br2 = C6H4Br2 + HBr =>
3 C2H6 + 8 Br2 = C6H4Br2 + 14 HBr
CaH2 = Ca + H2 =>
CaH2 = Ca + H2
NiCO3 + H2SO4 = H2O + CO2 + NiSO4 =>
NiCO3 + H2SO4 = H2O + CO2 + NiSO4
KClO + SnCl2 + HCl = SnCl4 + KCl + H2O =>
KClO + SnCl2 + 2 HCl = SnCl4 + KCl + H2O
NH4NO3 = N2 + O2 + H2O =>
2 NH4NO3 = 2 N2 + O2 + 4 H2O
K2Cr2O7 + SnCl2 + H2SO4 = K2SO4 + Cr2(SO4)3 + Sn(SO4)2 + SnCl4 + H2O =>
2 K2Cr2O7 + 6 SnCl2 + 14 H2SO4 = 2 K2SO4 + 2 Cr2(SO4)3 + 3 Sn(SO4)2 + 3 SnCl4 + 14 H2O
KNO3 + MgSO4 = MgNO3 + KSO4 =>
KNO3 + MgSO4 = MgNO3 + KSO4
C3H8 + HNO3 = C3H9NO3 =>
C3H8 + HNO3 = C3H9NO3
NaHCO3 + H2SO4 + CH3COOH = CO + H2O + Na2SO4 =>
2 NaHCO3 + H2SO4 + CH3COOH = 4 CO + 4 H2O + Na2SO4
Rb + ZnSO4 = Zn + RbSO4 =>
Rb + ZnSO4 = Zn + RbSO4
CH3OH + HCl = CH4 + HOCl =>
CH3OH + HCl = CH4 + HOCl
HCl + Ag(NH3)2 = HNH3 + AgCl2 =>
2 HCl + Ag(NH3)2 = 2 HNH3 + AgCl2
C6H15O3 + O2 = CO2 + H2O =>
4 C6H15O3 + 33 O2 = 24 CO2 + 30 H2O
NaHSO4 + Fe(NO3)3 = NaNO3 + Fe(HSO4)3 =>
3 NaHSO4 + Fe(NO3)3 = 3 NaNO3 + Fe(HSO4)3
H2O + CrO4 = Cr(OH)3 + OH =>
4 H2O + CrO4 = Cr(OH)3 + 5 OH
CH3OH + CrO4{2-} + H{+} = HCHO + Cr{3+} + H2O =>
3 CH3OH + 2 CrO4{2-} + 10 H{+} = 3 HCHO + 2 Cr{3+} + 8 H2O
Ag2SO4 + NaCl = AgCl + Na2SO4 =>
Ag2SO4 + 2 NaCl = 2 AgCl + Na2SO4
KMnO4 + H2SO4 + Fe2SO4 = K2SO4 + MnSO4 + Fe2(SO4)3 + H2O =>
4 KMnO4 + 16 H2SO4 + 5 Fe2SO4 = 2 K2SO4 + 4 MnSO4 + 5 Fe2(SO4)3 + 16 H2O
CH4 + HCl + O2 = CH3Cl + H2O =>
2 CH4 + 2 HCl + O2 = 2 CH3Cl + 2 H2O
IO2 + OH = IO3 + HOH =>
IO2 + 2 OH = IO3 + HOH
Na2CO3 + H2O = NaOH + NaHCO3 =>
Na2CO3 + H2O = NaOH + NaHCO3
HCl + KOH = KCl + H2O =>
HCl + KOH = KCl + H2O
AgCl(s) + O2(g) = Ag2O(aq) + Cl2(g) =>
4 AgCl(s) + O2(g) = 2 Ag2O(aq) + 2 Cl2(g)
S + NaOH = Na2S + Na2SO4 + H2O =>
4 S + 8 NaOH = 3 Na2S + Na2SO4 + 4 H2O
Si(OH)4 + NaBr = SiBr4 + NaOH =>
Si(OH)4 + 4 NaBr = SiBr4 + 4 NaOH
CaO + Cl = CaCl2 + O2 =>
2 CaO + 4 Cl = 2 CaCl2 + O2
C + H2O = CH4 + CO2 =>
2 C + 2 H2O = CH4 + CO2
Pb + Bi(NO2)3 = Pb(NO2)2 + Bi =>
3 Pb + 2 Bi(NO2)3 = 3 Pb(NO2)2 + 2 Bi
H2SO4 + Na2S2O3 = Na2S2O4 + H2O + SO2 =>
H2SO4 + Na2S2O3 = Na2S2O4 + H2O + SO2
C18H34O2 + H2O = C2H4O2 + H2 =>
C18H34O2 + 16 H2O = 9 C2H4O2 + 15 H2
BiCl3 + Na2[Sn(OH)4] + NaOH = Bi + Na2[Sn(OH)6] + NaCl =>
2 BiCl3 + 3 Na2[Sn(OH)4] + 6 NaOH = 2 Bi + 3 Na2[Sn(OH)6] + 6 NaCl
CaCl + SOH = CaOH + SCl =>
CaCl + SOH = CaOH + SCl
Se + F2 = FSe =>
2 Se + F2 = 2 FSe
CH3CH2OH + Na2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4) + NaSO4 + H2O =>
2 CH3CH2OH + Na2Cr2O7 + 3 H2SO4 = 2 CH3COOH + Cr2(SO4) + 2 NaSO4 + 5 H2O
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
BaCl2 + KNO3 = Ba(NO3)2 + KCl =>
BaCl2 + 2 KNO3 = Ba(NO3)2 + 2 KCl
SrCO3 + H2O = Sr(HCO3)2 + Sr(OH)2 =>
2 SrCO3 + 2 H2O = Sr(HCO3)2 + Sr(OH)2
I3 = I =>
I3 = 3 I
Ce + H2O = CeO + H =>
Ce + H2O = CeO + 2 H
Pb4 + SO4 = PbSO4 =>
Pb4 + 4 SO4 = 4 PbSO4
NaH + NCl3 = NH3 + NaCl =>
3 NaH + NCl3 = NH3 + 3 NaCl
NiO + NaOH = Na2NiO2 + H2O =>
NiO + 2 NaOH = Na2NiO2 + H2O
(NH4)6Mo7O24 + NaBH4 = Mo + NaNO3 + H3BO3 + H2 + HNO3 =>
(NH4)6Mo7O24 + 2 NaBH4 = 7 Mo + 2 NaNO3 + 2 H3BO3 + 11 H2 + 4 HNO3
Y2O3 + SO2 = Y2(SO3)3 =>
Y2O3 + 3 SO2 = Y2(SO3)3
Al + NH4NO3 = N2 + H2O + Al2O3 =>
2 Al + 3 NH4NO3 = 3 N2 + 6 H2O + Al2O3
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