| Équations équilibrées la veille | Équations équilibrées le lendemain |
Na2SO4 + Pb(CH3CO2)2 = 2 NaCH3CO2 + PbSO4
B15H2 = B + H2 =>
B15H2 = 15 B + H2
Pb(CH3COO)2(aq) + NaCl(aq) = NaCH3COO(aq) + PbCl2(s) =>
Pb(CH3COO)2(aq) + 2 NaCl(aq) = 2 NaCH3COO(aq) + PbCl2(s)
SeCl6 + O = SeO2 + Cl2 =>
SeCl6 + 2 O = SeO2 + 3 Cl2
HIO3 + FeI2 + HCl = FeCl3 + ICl + HOH =>
5 HIO3 + 4 FeI2 + 25 HCl = 4 FeCl3 + 13 ICl + 15 HOH
Al(NO3)3(aq) + Ca(s) = Ca(NO3)2 + Al(s) =>
2 Al(NO3)3(aq) + 3 Ca(s) = 3 Ca(NO3)2 + 2 Al(s)
Cu + Al2(SO4)3 = CuSO4 + Al =>
3 Cu + Al2(SO4)3 = 3 CuSO4 + 2 Al
HNO3 + S = S(NO3)4 + NH4 + H2O =>
40 HNO3 + 9 S = 9 S(NO3)4 + 4 NH4 + 12 H2O
CaO + H2SO3 = H2OCaSO3 =>
CaO + H2SO3 = H2OCaSO3
Fe + HNO3(conc) = Fe(NO3)2 + N2O3 + H2O =>
2 Fe + 6 HNO3(conc) = 2 Fe(NO3)2 + N2O3 + 3 H2O
C3H7OH + C2H5COOH = C2H5COOCH3CH4 + H2O =>
7 C3H7OH + 3 C2H5COOH = 6 C2H5COOCH3CH4 + H2O
BiO3{-} + Cr{3+} + H{+} = Cr2O7{2-} + Bi{3+} + H2O =>
3 BiO3{-} + 2 Cr{3+} + 4 H{+} = Cr2O7{2-} + 3 Bi{3+} + 2 H2O
Cu(s) + HCl(aq) = CuCl2(aq) + H2 =>
Cu(s) + 2 HCl(aq) = CuCl2(aq) + H2
ZnSO4 + H2SO4 = Zn(SO4)2 + H2 =>
ZnSO4 + H2SO4 = Zn(SO4)2 + H2
CH3CH2CH(OH)CH3 + KMnO4 + H2SO4 = K2SO4 + Mn(OH)2 + C3H6O + H2O =>
15 CH3CH2CH(OH)CH3 + 8 KMnO4 + 4 H2SO4 = 4 K2SO4 + 8 Mn(OH)2 + 20 C3H6O + 11 H2O
KMnO4 + H2SO4 = H2O + K2SO4 + MnSO4 + O3 =>
6 KMnO4 + 9 H2SO4 = 9 H2O + 3 K2SO4 + 6 MnSO4 + 5 O3
KMnO4 + FeS + H2SO4 = MnSO4 + Fe2(SO4)3 + K2S + H2O =>
2 KMnO4 + 2 FeS + 4 H2SO4 = 2 MnSO4 + Fe2(SO4)3 + K2S + 4 H2O
Ca(OH)2 + P2O5 = Ca3(OH)3PO4 + H2O =>
6 Ca(OH)2 + P2O5 = 2 Ca3(OH)3PO4 + 3 H2O
Ca + KCl = CaCl2 + K =>
Ca + 2 KCl = CaCl2 + 2 K
Li2S + H3PO4 = Li3PO4 + H2S =>
3 Li2S + 2 H3PO4 = 2 Li3PO4 + 3 H2S
C3H7OH + C3H5OOH = C3H5OC3H7 + H2O =>
3 C3H7OH + C3H5OOH = 2 C3H5OC3H7 + 3 H2O
propene + KMnO4 + water = C3H8O2 + KOH + MnO2 =>
3 CH3CHCH2 + 2 KMnO4 + 4 H2O = 3 C3H8O2 + 2 KOH + 2 MnO2
Ai + H2SO4 = Ai(SO4)3 + H2 =>
Ai + 3 H2SO4 = Ai(SO4)3 + 3 H2
Li2S + H3PO4 = Li3PO4 + H2S =>
3 Li2S + 2 H3PO4 = 2 Li3PO4 + 3 H2S
K + F2 = KF2 =>
K + F2 = KF2
Na3AlO3 + Al2O3 = Na2Al2O4 =>
2 Na3AlO3 + 2 Al2O3 = 3 Na2Al2O4
KSCN + HCl = SCl + HKCN =>
KSCN + HCl = SCl + HKCN
C2H6(OH) + O2 = H2O + CO2 =>
4 C2H6(OH) + 13 O2 = 14 H2O + 8 CO2
AlCl3 + KMnO4 + H2SO4 = Cl2 + Al2(SO4)3 + K2SO4 + MnSO4 + H2O =>
10 AlCl3 + 6 KMnO4 + 24 H2SO4 = 15 Cl2 + 5 Al2(SO4)3 + 3 K2SO4 + 6 MnSO4 + 24 H2O
Mg + ZnCl3 = Zn + MgCl3 =>
Mg + ZnCl3 = Zn + MgCl3
SO2 + LiOH = SOH + LiO2 =>
SO2 + LiOH = SOH + LiO2
Fe{2+} + SO4{2+} = Fe{3+} + S2O8{2-} =>
6 Fe{2+} + 2 SO4{2+} = 6 Fe{3+} + S2O8{2-}
NaI + CuCl2 = NaCl2CuI =>
NaI + CuCl2 = NaCl2CuI
BaCO3 + Fe2O3 + O = BaFeO3 + CO2 =>
2 BaCO3 + Fe2O3 + O = 2 BaFeO3 + 2 CO2
AgNO3 + BeCl2 = AgCl + Be(NO3)2 =>
2 AgNO3 + BeCl2 = 2 AgCl + Be(NO3)2
Pb(NO3)2(aq) + KI(aq) = PbI2(k) + KNO3(aq) =>
Pb(NO3)2(aq) + 2 KI(aq) = PbI2(k) + 2 KNO3(aq)
Ca5(PO4)3Cl + H2SO4 = CaSO4 + HCl + H3O4P =>
Ca5(PO4)3Cl + 5 H2SO4 = 5 CaSO4 + HCl + 3 H3O4P
ZnO + CoCO3 = ZnCo2O4 + CO2 + CO =>
ZnO + 2 CoCO3 = ZnCo2O4 + CO2 + CO
K4(Fe(CN)6) + KMnO4 + H2O = MnO2 + KOH + K3(Fe(CN)6) =>
3 K4(Fe(CN)6) + KMnO4 + 2 H2O = MnO2 + 4 KOH + 3 K3(Fe(CN)6)
CaBr2 + K3N = KBr + Ca3N2 =>
3 CaBr2 + 2 K3N = 6 KBr + Ca3N2
FeO + H2O2 + KOH = K2FeO4 + H2O =>
FeO + 2 H2O2 + 2 KOH = K2FeO4 + 3 H2O
Al2O3 + HF = AlF3 + H2O =>
Al2O3 + 6 HF = 2 AlF3 + 3 H2O
CrO4{2-} + H2SO4 = Cr2O7{2-} + H2O + SO4{2-} =>
2 CrO4{2-} + H2SO4 = Cr2O7{2-} + H2O + SO4{2-}
Fe + HNO3 = NO2 + Fe(NO3)3 + H2O =>
Fe + 6 HNO3 = 3 NO2 + Fe(NO3)3 + 3 H2O
I1 = I2 =>
2 I1 = I2
Al + PtCl3 = AlCl3 + Pt =>
Al + PtCl3 = AlCl3 + Pt
KOH + Al2O3 + H2O = KAl(OH)4 =>
2 KOH + Al2O3 + 3 H2O = 2 KAl(OH)4
NaNO3 + HCl = HNO2 + NaCl + O2 =>
2 NaNO3 + 2 HCl = 2 HNO2 + 2 NaCl + O2
H2SO4 + Cr2(CO3)3 = Cr2(SO4)3 + CO2 + H2O =>
3 H2SO4 + Cr2(CO3)3 = Cr2(SO4)3 + 3 CO2 + 3 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
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