| Équations équilibrées la veille | Équations équilibrées le lendemain |
20 S2F2 + 24 H2O = 3 S8 + 4 H2S4O6 + 40 HF
Hg(ClO4)2 + NaSO3 = Hg(SO3)2 + Na(ClO4) =>
Hg(ClO4)2 + 2 NaSO3 = Hg(SO3)2 + 2 Na(ClO4)
K2CrO7 + Na2C2O4 + H2SO4 = K2SO4 + Cr2(SO4)3 + Na2SO4 + CO2 + H2O =>
2 K2CrO7 + 9 Na2C2O4 + 14 H2SO4 = 2 K2SO4 + Cr2(SO4)3 + 9 Na2SO4 + 18 CO2 + 14 H2O
MgF2 = F + Mg =>
MgF2 = 2 F + Mg
C4H2O8 = C + H2 + O =>
C4H2O8 = 4 C + H2 + 8 O
H2O = H3O{+} + OH{-} =>
2 H2O = H3O{+} + OH{-}
Hg(OH)2 + HIO2 = Hg(IO2)2 + H2O =>
Hg(OH)2 + 2 HIO2 = Hg(IO2)2 + 2 H2O
C8H8 + H2O = C8H7 + H3O =>
C8H8 + H2O = C8H7 + H3O
Fe2O3 + C6H8O7 = FeCH7OOH + H2O + CO =>
Fe2O3 + 3 C6H8O7 = 2 FeCH7OOH + 4 H2O + 16 CO
Pb(CH3CO2)2 + NH4SO4 = NH4CH3CO2 + Pb(SO4)2 =>
Pb(CH3CO2)2 + 2 NH4SO4 = 2 NH4CH3CO2 + Pb(SO4)2
NO3{-} + I2 + H{+} = IO3{-} + NO2 + H2O =>
10 NO3{-} + I2 + 8 H{+} = 2 IO3{-} + 10 NO2 + 4 H2O
Fe(NO3)2 + Ag2SO4 = FeSO4 + AgNO3 =>
Fe(NO3)2 + Ag2SO4 = FeSO4 + 2 AgNO3
C6H5NH2 + (CH3CO)2O = C6H5NHCOCH3 + CH3CO2H =>
C6H5NH2 + (CH3CO)2O = C6H5NHCOCH3 + CH3CO2H
Ca2MnIrO6 + Mn2O3 + IrO2 + Ir = Ca19Mn11Ir10O60 =>
76 Ca2MnIrO6 + 6 Mn2O3 + 3 IrO2 + Ir = 8 Ca19Mn11Ir10O60
CH3CH2CH2COOH + O2 = CO2 + H2O =>
CH3CH2CH2COOH + 5 O2 = 4 CO2 + 4 H2O
V2O3(s) + O2(g) = V2O5(s) =>
V2O3(s) + O2(g) = V2O5(s)
H2O2 = H2O + O2 = =>
2 H2O2 = 2 H2O + O2
PbO + AgOH = Pb(OH)2 + OAg2 =>
PbO + 2 AgOH = Pb(OH)2 + OAg2
CrCl{3} + AgNO{3} = Cr(NO{3}){3} + AgCl =>
CrCl{3} + AgNO{3} = Cr(NO{3}){3} + AgCl
CH3CH2COOH + Cr2O7{2-} + H{+} = CH3COOH + Cr + H2O =>
6 CH3CH2COOH + Cr2O7{2-} + 2 H{+} = 9 CH3COOH + 2 Cr + H2O
C4H8O2S2 + I2 = C2H4OSI =>
C4H8O2S2 + I2 = 2 C2H4OSI
KMnO4 + CH2CH2 + H2O = CH2(OH)CH2OH + KOH + Mn2O3 =>
2 KMnO4 + 4 CH2CH2 + 5 H2O = 4 CH2(OH)CH2OH + 2 KOH + Mn2O3
KBr + Cl{-} = KCl + Br{-} =>
KBr + Cl{-} = KCl + Br{-}
H2B + NaOH = Na2B + H2O =>
H2B + 2 NaOH = Na2B + 2 H2O
ClF3 + N2H4 = HCl + N2 + HF =>
ClF3 + N2H4 = HCl + N2 + 3 HF
B + NH3 = BN + H2 =>
2 B + 2 NH3 = 2 BN + 3 H2
HCl(aq) + K2SO3(aq) = H2SO3 + KCl =>
2 HCl(aq) + K2SO3(aq) = H2SO3 + 2 KCl
Sr(NO3)2 + NaOH = Sr(OH)2 + NaNO3 =>
Sr(NO3)2 + 2 NaOH = Sr(OH)2 + 2 NaNO3
CuCl2 + HCl = CuCl + HCl2 =>
CuCl2 + HCl = CuCl + HCl2
Na2B4O7 + H2O + BaCl2 = Ba(BO2)2 + NaCl + HCl =>
Na2B4O7 + H2O + 2 BaCl2 = 2 Ba(BO2)2 + 2 NaCl + 2 HCl
Cr2S3 + NaOH + Br2 = Na2CrO4 + Na2SO4 + NaBr + H2O =>
Cr2S3 + 40 NaOH + 15 Br2 = 2 Na2CrO4 + 3 Na2SO4 + 30 NaBr + 20 H2O
(Co(H2O)6) + Cl + HCl = H2(CoCl4) + H2O =>
(Co(H2O)6) + 2 Cl + 2 HCl = H2(CoCl4) + 6 H2O
KMnO4 + HBr = MnBr2 + KBr + Br2 + H2O =>
2 KMnO4 + 16 HBr = 2 MnBr2 + 2 KBr + 5 Br2 + 8 H2O
(CuOH)2CO3 + HCl = CuCl2 + CO2 + H2O =>
(CuOH)2CO3 + 4 HCl = 2 CuCl2 + CO2 + 3 H2O
CuCl + NH3 = CuNH3 + Cl =>
CuCl + NH3 = CuNH3 + Cl
HCHO + I2 + OH{-} = HCOOH + I{-} + H2O =>
HCHO + I2 + 2 OH{-} = HCOOH + 2 I{-} + H2O
NH4NO2 + H2O = HNH4 + NO2(OH) =>
NH4NO2 + H2O = HNH4 + NO2(OH)
LiBr + H2TeO4 = Li2TeO4 + Br2 + H2Te + H2O =>
8 LiBr + 5 H2TeO4 = 4 Li2TeO4 + 4 Br2 + H2Te + 4 H2O
AsO4{3-} + SnCl2 = Cl{-} + Sn3(AsO4)2 =>
2 AsO4{3-} + 3 SnCl2 = 6 Cl{-} + Sn3(AsO4)2
K2CrO7 + HCl = KCl + CrO3 + H2O + Cl2 =>
K2CrO7 + 8 HCl = 2 KCl + CrO3 + 4 H2O + 3 Cl2
H5IO6 + Cr + H{+} = IO3{-} + Cr{3+} + H2O =>
3 H5IO6 + 2 Cr + 3 H{+} = 3 IO3{-} + 2 Cr{3+} + 9 H2O
SrCO3 + TeO2 + O2 = Sr3TeO6 + CO2 =>
6 SrCO3 + 2 TeO2 + O2 = 2 Sr3TeO6 + 6 CO2
C12H22O11 + H2O = CH3CHOHCOOH =>
C12H22O11 + H2O = 4 CH3CHOHCOOH
I2(s) + NaBr(ac) = I2Na(ac) + Br(s) =>
I2(s) + NaBr(ac) = I2Na(ac) + Br(s)
Na2SO3 + Br2 + H2O = Na2SO4 + HBr =>
Na2SO3 + Br2 + H2O = Na2SO4 + 2 HBr
Na2O(s) + H2O(aq) = NaOH =>
Na2O(s) + H2O(aq) = 2 NaOH
NaCl + CaF{3} = NaF + CaCl{3} =>
NaCl + CaF{3} = NaF + CaCl{3}
NH3(g) + H2SO4(ac) = (NH4)2SO4(ac) =>
2 NH3(g) + H2SO4(ac) = (NH4)2SO4(ac)
MnO4{-} + H3O + Fe2{+} = Fe3{+} + Mn2{+} + H2O =>
2 MnO4{-} + 16 H3O + 9 Fe2{+} = 6 Fe3{+} + Mn2{+} + 24 H2O
F2 + Na = NaF =>
F2 + 2 Na = 2 NaF
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