| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 KMnO4 + 3 H2SO4 + 5 Cu = K2SO4 + 2 MnSO4 + 3 H2O + 5 CuO
Ca(NO3)2 + CrBr3 = Cr(NO3)3 + CaBr2 =>
3 Ca(NO3)2 + 2 CrBr3 = 2 Cr(NO3)3 + 3 CaBr2
CH3C2H12CH3 + O2 = CO2 + H2O =>
2 CH3C2H12CH3 + 17 O2 = 8 CO2 + 18 H2O
Ag + S = Ag2S(s) =>
2 Ag + S = Ag2S(s)
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
(a)CaCO3(s) + HCl(aq) = CaCl2(aq) + CO2(g) + H2O(l) =>
(a)CaCO3(s) + 2 HCl(aq) = CaCl2(aq) + CO2(g) + H2O(l)
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
Mg(OH)2 + Cu3N = CuOH + Mg3N2 =>
3 Mg(OH)2 + 2 Cu3N = 6 CuOH + Mg3N2
MgC2H5Br = C2H5BrMg =>
MgC2H5Br = C2H5BrMg
C6H5OHC2H5OH = C6H5OC2H5H2O =>
C6H5OHC2H5OH = C6H5OC2H5H2O
Ga + H2SO4 = Ga2(SO4)3 + H2 =>
2 Ga + 3 H2SO4 = Ga2(SO4)3 + 3 H2
CaO2H2 = CaOH2O =>
CaO2H2 = CaOH2O
PbO2 + H2SO4 + Mn(NO3)3 = PbSO4 + HNO3 + HMnO4 =>
2 PbO2 + 2 H2SO4 + Mn(NO3)3 = 2 PbSO4 + 3 HNO3 + HMnO4
Fe3O4 + H2 = Fe + H2O =>
Fe3O4 + 4 H2 = 3 Fe + 4 H2O
Al(OH)3 + HCl = Al3 + Cl + H2O =>
3 Al(OH)3 + 9 HCl = Al3 + 9 Cl + 9 H2O
(C2H5)3N + HNO3 = NO3{-} + (C2H5)3NH{+} =>
(C2H5)3N + HNO3 = NO3{-} + (C2H5)3NH{+}
Al2(SO4)3(s) + Mg(s) = MgSO4(s) + Al(s) =>
Al2(SO4)3(s) + 3 Mg(s) = 3 MgSO4(s) + 2 Al(s)
C2H5OH + B(OH)3 = C6H15BO3 + H2O =>
3 C2H5OH + B(OH)3 = C6H15BO3 + 3 H2O
KMnO4 + Na2(COO)2 + H2SO4 = MnSO4 + K2SO4 + Na2SO4 + CO2 + H2O =>
2 KMnO4 + 5 Na2(COO)2 + 8 H2SO4 = 2 MnSO4 + K2SO4 + 5 Na2SO4 + 10 CO2 + 8 H2O
Zn(OH)2 + KOH = H2O + K2ZnO2 =>
Zn(OH)2 + 2 KOH = 2 H2O + K2ZnO2
NaHCO3(g) + CH3COOH(aq) = CH3COONa(aq) + H2O(l) + CO2(g) =>
NaHCO3(g) + CH3COOH(aq) = CH3COONa(aq) + H2O(l) + CO2(g)
HMnO4 + FeSO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + H2O =>
2 HMnO4 + 10 FeSO4 + 7 H2SO4 = 5 Fe2(SO4)3 + 2 MnSO4 + 8 H2O
CC2H5OH + O2 = CO2 + H2O =>
CC2H5OH + 4 O2 = 3 CO2 + 3 H2O
Pb(CH3COO)2 + CaCl2 = PbCl2 + Ca(CH3COO)2 =>
Pb(CH3COO)2 + CaCl2 = PbCl2 + Ca(CH3COO)2
HCl + NaHCO3 = H2CO3 + ClNa =>
HCl + NaHCO3 = H2CO3 + ClNa
Zn + Cu(OH)4 = Cu + Zn(OH)2 =>
2 Zn + Cu(OH)4 = Cu + 2 Zn(OH)2
MnO4 + N2H4 = MnO2 + N2 + H2O =>
MnO4 + N2H4 = MnO2 + N2 + 2 H2O
NaAlO2 + NH4Cl + NH4OH = Al(OH)3 + NaCl + NH3 =>
NaAlO2 + NH4Cl + NH4OH = Al(OH)3 + NaCl + 2 NH3
(NH4)3(PO4) + CaCl2 = Ca3(PO4)2 + NH4Cl =>
2(NH4)3(PO4) + 3 CaCl2 = Ca3(PO4)2 + 6 NH4Cl
KAl(SO4)2 + NH3 + H2O = K2SO4 + Al(OH)3 + (NH4)2SO4 =>
2 KAl(SO4)2 + 6 NH3 + 6 H2O = K2SO4 + 2 Al(OH)3 + 3(NH4)2SO4
HOOC(CH2)4COOH + NH2(CH2)6NH2 = NH2(CH2)6NHCO(CH2)4COOH + H2O =>
HOOC(CH2)4COOH + NH2(CH2)6NH2 = NH2(CH2)6NHCO(CH2)4COOH + H2O
Cs + H2O = CsO2 + H =>
Cs + 2 H2O = CsO2 + 4 H
NaOH(aq) + Co2(SO4)3(aq) = Na2SO4(aq) + Co(OH)3(s)(unbalanced) =>
6 NaOH(aq) + Co2(SO4)3(aq) = 3 Na2SO4(aq) + 2 Co(OH)3(s)(unbalanced)
Ca + Sn(OH)4 = Sn + Ca(OH)2 =>
2 Ca + Sn(OH)4 = Sn + 2 Ca(OH)2
Na3PO4 + Pb(NO3)2 = Na(NO3)2 + Pb3(PO4) =>
Na3PO4 + 3 Pb(NO3)2 = 3 Na(NO3)2 + Pb3(PO4)
KAl(SO4)2 + HClO4 = KClO4 + Al(ClO4)3 + H2SO4 =>
KAl(SO4)2 + 4 HClO4 = KClO4 + Al(ClO4)3 + 2 H2SO4
H2SO4 + NH4F = (NH4)2SO4 + HF =>
H2SO4 + 2 NH4F = (NH4)2SO4 + 2 HF
Mg0 + H2SO4 = MgSO4 + H2 = =>
Mg0 + H2SO4 = MgSO4 + H2
Hg8H18 + O2 = H2O + HgO =>
2 Hg8H18 + 17 O2 = 18 H2O + 16 HgO
KMnO4 + HNO3 = KNO3 + Mn(NO3)2 + O2 + H2O =>
4 KMnO4 + 12 HNO3 = 4 KNO3 + 4 Mn(NO3)2 + 5 O2 + 6 H2O
CrCl2 + FeSO4 = CrSO4 + FeCl2 =>
CrCl2 + FeSO4 = CrSO4 + FeCl2
Nitrogen + oxygen = Nitrogendioxide =>
N2 + 2 O2 = 2 NO2
CH3OH + Al = (CH3O)Al + H2 =>
2 CH3OH + 2 Al = 2(CH3O)Al + H2
SrCl2 + Pb(NO3)2 = Sr(NO3)2 + PbCl2 =>
SrCl2 + Pb(NO3)2 = Sr(NO3)2 + PbCl2
AgNO3(ac) + NaCl = AgCl + NaNO3 =>
AgNO3(ac) + NaCl = AgCl + NaNO3
HCN + F = HF + CN =>
HCN + F = HF + CN
Fe(OH)2 + H3(PO4) = Fe3(PO4)2 + H(OH) =>
3 Fe(OH)2 + 2 H3(PO4) = Fe3(PO4)2 + 6 H(OH)
CaCo3 = Ca + Co2 =>
2 CaCo3 = 2 Ca + 3 Co2
PbS + Mg = MgS + Pb =>
PbS + Mg = MgS + Pb
I2 + MnO4{-} + OH{-} = IO{-} + MnO2 + H2O =>
3 I2 + 2 MnO4{-} + 4 OH{-} = 6 IO{-} + 2 MnO2 + 2 H2O
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Équations équilibrées sur11/14/24
Équations équilibrées sur12/14/23
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