| Équations équilibrées la veille | Équations équilibrées le lendemain |
CH3CHO + HCl = CH3CH2O + Cl
FeSO4 + NaI + NaIO3 + H2O = Fe(OH)2 + Na2SO4 + I2 =>
3 FeSO4 + 5 NaI + NaIO3 + 3 H2O = 3 Fe(OH)2 + 3 Na2SO4 + 3 I2
Cr(OH)3 + Zn(OH)2 + H2O2 = ZnCrO4 + H2O =>
2 Cr(OH)3 + 2 Zn(OH)2 + 3 H2O2 = 2 ZnCrO4 + 8 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Cu + HNO3(p) = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3(p) = 3 Cu(NO3)2 + 2 NO + 4 H2O
H3AsO4 + H{+} + e = H3AsO3 + H2O =>
H3AsO4 + 2 H{+} + 2e = H3AsO3 + H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
S0C0 = C0S =>
S0C0 = C0S
MnO4{-} + H{+} + H = Mn{2+} + H2O =>
MnO4{-} + 3 H{+} + 5 H = Mn{2+} + 4 H2O
Pb(NO3)2 + HNO2 = Pb(NO2)2 + HNO3 =>
Pb(NO3)2 + 2 HNO2 = Pb(NO2)2 + 2 HNO3
Pb(No2)2 + K2S = PbS + KNo2 =>
Pb(No2)2 + K2S = PbS + 2 KNo2
H3PO4 + Mg(OH)2 = Mg3(PO4)2 + H2O =>
2 H3PO4 + 3 Mg(OH)2 = Mg3(PO4)2 + 6 H2O
Hg(ClO4)2 + Na2SO3 = HgSO3 + NaClO4 =>
Hg(ClO4)2 + Na2SO3 = HgSO3 + 2 NaClO4
H2O + CrO4{2-} + HSnO2{-} = HSnO3{-} + CrO2{-} + OH{-} =>
H2O + 2 CrO4{2-} + 3 HSnO2{-} = 3 HSnO3{-} + 2 CrO2{-} + 2 OH{-}
C5H5N + HBr = HC5H5N + Br =>
C5H5N + HBr = HC5H5N + Br
AgSO4 + BaI = BaSO4 + AgI =>
AgSO4 + BaI = BaSO4 + AgI
Al + NH4ClO4 = Al2O3 + NH4Cl =>
8 Al + 3 NH4ClO4 = 4 Al2O3 + 3 NH4Cl
H2SO4 + C4H6BaO4 = BaO4S + C2H4O2 =>
H2SO4 + C4H6BaO4 = BaO4S + 2 C2H4O2
Cr + FeBr2 = CrBr3 + Fe =>
2 Cr + 3 FeBr2 = 2 CrBr3 + 3 Fe
CH3COOCH3 + [Ag(NH3)2]OH = CH3COONH4 + Ag + NH3 + H2O =>
2 CH3COOCH3 + 4[Ag(NH3)2]OH = 3 CH3COONH4 + 4 Ag + 5 NH3 + 2 H2O
HI + NH3 = NH4 + I2 =>
2 HI + 2 NH3 = 2 NH4 + I2
Na2S + Cu2S*Sb2S3 = Cu2S + NaSbS2 =>
Na2S + Cu2S*Sb2S3 = Cu2S + 2 NaSbS2
C4F8 + O2 = CO2 + F2 =>
C4F8 + 4 O2 = 4 CO2 + 4 F2
K1 = K2 =>
2 K1 = K2
CrCl3 + NH4SCN = Cr(SCN)3 + NH4Cl =>
CrCl3 + 3 NH4SCN = Cr(SCN)3 + 3 NH4Cl
C6H14 + oxygen = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
Cu + KNO3 + KOH = K2CuO2 + NH3 + H2O =>
4 Cu + KNO3 + 7 KOH = 4 K2CuO2 + NH3 + 2 H2O
VO2 + HCl + H2O = [VO(H2O)5]Cl2 =>
VO2 + 2 HCl + 4 H2O = [VO(H2O)5]Cl2
HNO3 + HI = NO2 + HIO3 + H2O =>
6 HNO3 + HI = 6 NO2 + HIO3 + 3 H2O
KMnO4 + H2S = MnO2 + KOH + S + H2O =>
2 KMnO4 + 3 H2S = 2 MnO2 + 2 KOH + 3 S + 2 H2O
PCl5 + SnO2 = SnCl4 + O10P4 =>
4 PCl5 + 5 SnO2 = 5 SnCl4 + O10P4
SOC = CS2CO2 =>
2 SOC = CS2CO2
Na2B4O7 + H2O2 + NaOH + H2O = Na2[B2(O2)2(OH)4]*6H2O =>
Na2B4O7 + 4 H2O2 + 2 NaOH + 11 H2O = 2 Na2[B2(O2)2(OH)4]*6H2O
H2SO3 = H2O + SO2 =>
H2SO3 = H2O + SO2
SrS + KOH = KS + Sr(OH) =>
SrS + KOH = KS + Sr(OH)
Ra(NO3)2 + H2 = HNO3 + Ra =>
Ra(NO3)2 + H2 = 2 HNO3 + Ra
Na2O2 + H2SO4 = Na2SO4 + H2O2 =>
Na2O2 + H2SO4 = Na2SO4 + H2O2
He + C = HeC =>
He + C = HeC
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
F{-} + H3O{+} = HF + H2O =>
F{-} + H3O{+} = HF + H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
H2SO4 + HBr = Br + H2O + SO2 =>
H2SO4 + 2 HBr = 2 Br + 2 H2O + SO2
V + O2 = V2O3 =>
4 V + 3 O2 = 2 V2O3
CaPO4 + Mg = Ca + MgPO4 =>
CaPO4 + Mg = Ca + MgPO4
C6H8O7 + Cu(NO3)28*3H2O + Fe(NO3)3*9H2O = CuFe2O4 + H2O + CO2 + N2 =>
98 C6H8O7 + 9 Cu(NO3)28*3H2O + 18 Fe(NO3)3*9H2O = 9 CuFe2O4 + 581 H2O + 588 CO2 + 153 N2
Na3CrO4 + H2SO4 = Na2Cr2O7 + Cr2(SO4)3 + Na2SO4 + H2O =>
6 Na3CrO4 + 10 H2SO4 = 2 Na2Cr2O7 + Cr2(SO4)3 + 7 Na2SO4 + 10 H2O
KI + KClO3 + HCl = I2 + H2O + KCl =>
6 KI + KClO3 + 6 HCl = 3 I2 + 3 H2O + 7 KCl
I{3-} + H2O = IO3{-} + H{+} + e =>
I{3-} + 3 H2O = IO3{-} + 6 H{+} + 8e
HN3 + HNO3 = N2 + H2O =>
5 HN3 + HNO3 = 8 N2 + 3 H2O
(NH2)2CO(l) + H2O(l) = NH3(l) + CO2(g) =>
(NH2)2CO(l) + H2O(l) = 2 NH3(l) + CO2(g)
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