| Équations équilibrées la veille |
Mn3O4 + H2 = 3 MnO + H2O
Na2S2O3 + Na2S2O7 = Na2SO4 + SO2 =>
Na2S2O3 + 3 Na2S2O7 = 4 Na2SO4 + 4 SO2
C10H8 + HNO3 = CO2 + H2O + NO =>
C10H8 + 16 HNO3 = 10 CO2 + 12 H2O + 16 NO
BaO + HCl + Na2SO4 = NaCl + H2O + BaSO4 =>
BaO + 2 HCl + Na2SO4 = 2 NaCl + H2O + BaSO4
HClO3 + Ca(HCO3)2 = H2O + CO2 + Ca(ClO3)2 =>
2 HClO3 + Ca(HCO3)2 = 2 H2O + 2 CO2 + Ca(ClO3)2
K + H2S = K2S + H2 =>
2 K + H2S = K2S + H2
CaO + H3N = Ca3N2 + H2O =>
3 CaO + 2 H3N = Ca3N2 + 3 H2O
I2 + NO3{-} + H{+} = IO3{-} + NO + H2O =>
3 I2 + 10 NO3{-} + 4 H{+} = 6 IO3{-} + 10 NO + 2 H2O
NaNO2 + NaI + H2SO4 = N2 + Na2SO4 + I2 + H2O =>
2 NaNO2 + 6 NaI + 4 H2SO4 = N2 + 4 Na2SO4 + 3 I2 + 4 H2O
CH3CH2MgBr + CO2 = CH3CH2COOMgBr =>
CH3CH2MgBr + CO2 = CH3CH2COOMgBr
SO2 + F2 = SO2F2 =>
SO2 + F2 = SO2F2
NH4(NO3) + Ba(OH)2 = NH4(OH) + Ba(NO3)2 =>
2 NH4(NO3) + Ba(OH)2 = 2 NH4(OH) + Ba(NO3)2
PbO2 + Mg = Pb + MgO =>
PbO2 + 2 Mg = Pb + 2 MgO
MMgSO4 + Na2CO3 = MMgCO3 + Na2SO4 =>
MMgSO4 + Na2CO3 = MMgCO3 + Na2SO4
Ca + H2O = Ca[OH]2 + H2 =>
Ca + 2 H2O = Ca[OH]2 + H2
CaCl2 + Pd(No3)2 = Ca(No3)2 + PdCl2 =>
CaCl2 + Pd(No3)2 = Ca(No3)2 + PdCl2
Fe(NO3)2 + CH3COOH = Fe(CH3COO)2 + HNO3 =>
Fe(NO3)2 + 2 CH3COOH = Fe(CH3COO)2 + 2 HNO3
C2H2 + HBr = C2H3Br =>
C2H2 + HBr = C2H3Br
K2SO4 + H2 = K2S + H2O =>
K2SO4 + 4 H2 = K2S + 4 H2O
H2S2O4 = SO2 + H2O + S =>
2 H2S2O4 = 3 SO2 + 2 H2O + S
NH3 + (NH4)2SO4 = NH3SO4 + NH4 =>
NH3 + (NH4)2SO4 = NH3SO4 + 2 NH4
KMnO4 + PbCl2 + H2SO4 = MnSO4 + PbO2 + Cl2 + K2SO4 + H2O =>
4 KMnO4 + 5 PbCl2 + 6 H2SO4 = 4 MnSO4 + 5 PbO2 + 5 Cl2 + 2 K2SO4 + 6 H2O
H2SO4 + Cu2O = SO2 + CuSO4 + H2O =>
3 H2SO4 + Cu2O = SO2 + 2 CuSO4 + 3 H2O
H2O + Cr2O7{2-} + S{2-} = S + Cr{3+} + OH{-} =>
7 H2O + Cr2O7{2-} + 3 S{2-} = 3 S + 2 Cr{3+} + 14 OH{-}
Mg + ZnSO4 = Zn + Mg(SO4)3 =>
Mg + 3 ZnSO4 = 3 Zn + Mg(SO4)3
C6H6 + CH3COOH = C8H8O2 + H2 =>
C6H6 + CH3COOH = C8H8O2 + H2
C8H10N4O2 + H2O = C8H11N4O2 + OH =>
C8H10N4O2 + H2O = C8H11N4O2 + OH
Pb(NO3)2(ac) + H2SO4(ac) = PbSO4(s) + HNO3(ac) =>
Pb(NO3)2(ac) + H2SO4(ac) = PbSO4(s) + 2 HNO3(ac)
Ca(OH)2 + NH4Cl2 = CaCl2 + NH4(OH)2 =>
Ca(OH)2 + NH4Cl2 = CaCl2 + NH4(OH)2
Sr(OH)2 + FeSO4 = Sr(SO4)2 + FeOH =>
Sr(OH)2 + 2 FeSO4 = Sr(SO4)2 + 2 FeOH
B + HNO3 = H3BO3 + NO2 =>
B + 3 HNO3 = H3BO3 + 3 NO2
HI + (NH4)2SO4 = H2SO4 + NH4I =>
2 HI + (NH4)2SO4 = H2SO4 + 2 NH4I
C20H42 + O2 = CO + H2O =>
2 C20H42 + 41 O2 = 40 CO + 42 H2O
C7H8 + K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + C7H6O2 + H2O =>
C7H8 + K2Cr2O7 + 4 H2SO4 = K2SO4 + Cr2(SO4)3 + C7H6O2 + 5 H2O
HN4OH + FeCl3 = Fe(OH)3 + HN4Cl =>
3 HN4OH + FeCl3 = Fe(OH)3 + 3 HN4Cl
Ba(NO3)2 + CO2 = BaCO3 + NO2 + O2 =>
2 Ba(NO3)2 + 2 CO2 = 2 BaCO3 + 4 NO2 + O2
CuCl2 + K3PO4 = Cu3(PO4)2 + KCl =>
3 CuCl2 + 2 K3PO4 = Cu3(PO4)2 + 6 KCl
CaOHCl + HCl = CaCl2 + H2O =>
CaOHCl + HCl = CaCl2 + H2O
HCl + Sb2O3 = SbCl3 + H2O =>
6 HCl + Sb2O3 = 2 SbCl3 + 3 H2O
Ca(s) + H{+}(aq) = Ca{2+}(aq) + H2(g) =>
Ca(s) + 2 H{+}(aq) = Ca{2+}(aq) + H2(g)
SrO + HCl = SrCl2 + H2O =>
SrO + 2 HCl = SrCl2 + H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Ca + H3PO4 = Ca3(PO4)2 + H2 =>
3 Ca + 2 H3PO4 = Ca3(PO4)2 + 3 H2
Na[Al(OH)4] + MgCl2 = AlCl3 + Mg(OH)2 + NaOH =>
2 Na[Al(OH)4] + 3 MgCl2 = 2 AlCl3 + 3 Mg(OH)2 + 2 NaOH
KI + K2CrO7 + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O + I2 =>
18 KI + 2 K2CrO7 + 14 H2SO4 = Cr2(SO4)3 + 11 K2SO4 + 14 H2O + 9 I2
SrCl2 + Al2(SO4)3 = SrSO4 + AlCl3 =>
3 SrCl2 + Al2(SO4)3 = 3 SrSO4 + 2 AlCl3
C4H8O + Cl2 = C4H7ClO + HCl =>
C4H8O + Cl2 = C4H7ClO + HCl
C4H10 + NaOH = C4H9Na + H2O =>
C4H10 + NaOH = C4H9Na + H2O
SO2 + HNO3 = H2SO4 + NO + O2 =>
SO2 + 2 HNO3 = H2SO4 + 2 NO + O2
As2O3 + H2SO4 + Cu = CuSO4 + AsH3 + H2O =>
As2O3 + 6 H2SO4 + 6 Cu = 6 CuSO4 + 2 AsH3 + 3 H2O
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