| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 C12H6O2 + 25 O2 = 6 H2O + 24 CO2
LiNO3 + MnO2 = LiMn2O4 + NO2 + O2 =>
2 LiNO3 + 4 MnO2 = 2 LiMn2O4 + 2 NO2 + O2
NaF + H2O = Na(OH)2 + H + F =>
NaF + 2 H2O = Na(OH)2 + 2 H + F
C4H6 + N2O = N2 + H2O + CO2 =>
C4H6 + 11 N2O = 11 N2 + 3 H2O + 4 CO2
AgNo3 + MgCl2 = MgNo3 + AgCl2 =>
AgNo3 + MgCl2 = MgNo3 + AgCl2
Cu + S = CuS =>
Cu + S = CuS
HI + CaOH = CaI + H2O =>
HI + CaOH = CaI + H2O
H2SO4(aq) + NaOH(aq) = Na2SO4(aq) + H2O(l) =>
H2SO4(aq) + 2 NaOH(aq) = Na2SO4(aq) + 2 H2O(l)
NaPO2H2*H2O + KNO3 = Na2O + K2O + N2 + H2O + P2O5 =>
10 NaPO2H2*H2O + 8 KNO3 = 5 Na2O + 4 K2O + 4 N2 + 20 H2O + 5 P2O5
Fe(s) + S3(s) = FeS(s) =>
3 Fe(s) + S3(s) = 3 FeS(s)
Fe(NH4)2(SO4)2(H2O)6 + H2C2O4 + K2C2O4 + H2O2 = K3Fe(C2O4)3(H2O)3 + (NH4)2SO4 + H2SO4 + H2O =>
2 Fe(NH4)2(SO4)2(H2O)6 + 3 H2C2O4 + 3 K2C2O4 + H2O2 = 2 K3Fe(C2O4)3(H2O)3 + 2(NH4)2SO4 + 2 H2SO4 + 8 H2O
KNH2 + PH3 = KPH2 + NH3 =>
KNH2 + PH3 = KPH2 + NH3
CO + Fe(OH)2 = FeCO2 + H2O =>
CO + Fe(OH)2 = FeCO2 + H2O
KMnO4 + H2SO4 + CH3CH2CHO = K2SO4 + MnSO4 + CH3COOH + H2O =>
8 KMnO4 + 12 H2SO4 + 10 CH3CH2CHO = 4 K2SO4 + 8 MnSO4 + 15 CH3COOH + 12 H2O
FeSO4 + H2S = FeS + SO2 + H2O =>
3 FeSO4 + 4 H2S = 3 FeS + 4 SO2 + 4 H2O
V2O5 + Al3 = Al2O3 + V5 =>
45 V2O5 + 50 Al3 = 75 Al2O3 + 18 V5
Fe{2+} + KFe(CN)6{2-} = KFe2(CN)6 =>
Fe{2+} + KFe(CN)6{2-} = KFe2(CN)6
Cu + S = Cu2S =>
2 Cu + S = Cu2S
Na2CO3(s) + HCl(aq) = CO2(g) + H2O(l) + NaCl(aq) =>
Na2CO3(s) + 2 HCl(aq) = CO2(g) + H2O(l) + 2 NaCl(aq)
NiCl2(aq) + AgNO3(aq) = AgCl(s) + Ni(NO3)2(aq) =>
NiCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Ni(NO3)2(aq)
HCOOH + Fe = COOHFe + H =>
HCOOH + Fe = COOHFe + H
Cu + S = Cu2S =>
2 Cu + S = Cu2S
KNO3 + H2SO4 = K2SO4 + H + NO3 =>
2 KNO3 + H2SO4 = K2SO4 + 2 H + 2 NO3
NaBO2 + H2O2 + H2O = Na2B2O14H16 =>
2 NaBO2 + 2 H2O2 + 6 H2O = Na2B2O14H16
Z4 + H2SO4 = Z4SO4 + H2 =>
Z4 + H2SO4 = Z4SO4 + H2
NiCl2(aq) + AgNO3(aq) = AgCl(s) + Ni(NO3)2(aq) =>
NiCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Ni(NO3)2(aq)
HCO3{-} = CO2 + OH{-} =>
HCO3{-} = CO2 + OH{-}
NiCl2(aq) + AgNO3(aq) = AgCl(s) + Ni(NO3)2 =>
NiCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Ni(NO3)2
C2H4 + HCl = C2H3Cl + H2 =>
C2H4 + HCl = C2H3Cl + H2
Ca = Ca(oh)2 =>
2 Ca = Ca(oh)2
NaClO3 + MnSO4 + NaOH = MnO2 + NaCl + Na2SO4 + H2O =>
NaClO3 + 3 MnSO4 + 6 NaOH = 3 MnO2 + NaCl + 3 Na2SO4 + 3 H2O
Pb + P + O2 = Pb3(PO4)4 =>
3 Pb + 4 P + 8 O2 = Pb3(PO4)4
NH2CH2CO2H + O2 = N2 + CO2 + H2O =>
4 NH2CH2CO2H + 9 O2 = 2 N2 + 8 CO2 + 10 H2O
K3(PO4) + Na(OH) = Na3(PO4) + K(OH) =>
K3(PO4) + 3 Na(OH) = Na3(PO4) + 3 K(OH)
[]H2 + []N2 = []NH3 =>
3[]H2 + []N2 = 2[]NH3
Pb(CrO4) + HCl + Fe(SO4) = PbCl2 + Cr2(SO4)3 + FeCl3 + H2O + Fe2(SO4)3 =>
2 Pb(CrO4) + 16 HCl + 6 Fe(SO4) = 2 PbCl2 + Cr2(SO4)3 + 4 FeCl3 + 8 H2O + Fe2(SO4)3
O2 + Br2 = BrO =>
O2 + Br2 = 2 BrO
HCl + AgN = AgCl + HN =>
HCl + AgN = AgCl + HN
Ba(IO3)2(s) + HNO3 = Ba(NO3)2 + HIO3 =>
Ba(IO3)2(s) + 2 HNO3 = Ba(NO3)2 + 2 HIO3
BaCl2 + K2CrO4 = BaCrO4 + KCl =>
BaCl2 + K2CrO4 = BaCrO4 + 2 KCl
Cr(OH)3 + ClO{-} = CrO4{2-} + Cl2 + H2O + OH{-} =>
2 Cr(OH)3 + 6 ClO{-} = 2 CrO4{2-} + 3 Cl2 + 2 H2O + 2 OH{-}
Cr2O7{2-} + OH{-}< = CrO4{2-} + H2O =>
Cr2O7{2-} + 2 OH{-}< = 2 CrO4{2-} + H2O
CH3OH + CrO7{2-} + H{+} = CH2O + Cr{3+} + H2O =>
9 CH3OH + 2 CrO7{2-} + 10 H{+} = 9 CH2O + 2 Cr{3+} + 14 H2O
CoCl + H2O = Co(H2O)6 + Cl =>
CoCl + 6 H2O = Co(H2O)6 + Cl
Hg2Cl2(s) + SnCl2(aq) = Hg(aq) + SnCl4(aq) =>
Hg2Cl2(s) + SnCl2(aq) = 2 Hg(aq) + SnCl4(aq)
H2SO4 + Sb = Sb2(SO4)2 + H2O + SO2 =>
4 H2SO4 + 2 Sb = Sb2(SO4)2 + 4 H2O + 2 SO2
C2H4O(g) + O2 = CO2(g) + H2O(g) =>
2 C2H4O(g) + 5 O2 = 4 CO2(g) + 4 H2O(g)
MoS2 + O2 + H2O = MoO4{2-} + SO4{2-} + H{+} =>
2 MoS2 + 9 O2 + 6 H2O = 2 MoO4{2-} + 4 SO4{2-} + 12 H{+}
Cu + H2CO3 = CuCO3 + H =>
Cu + H2CO3 = CuCO3 + 2 H
FeCl2 + NaBr = NaCl + FeBr2 =>
FeCl2 + 2 NaBr = 2 NaCl + FeBr2
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