| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 PH3 + 3 H2SO4 = P2O3 + 3 H2SO2 + 3 H2O
Cl2 + Br2 + KOH = KCl + KBrO3 + H2O =>
5 Cl2 + Br2 + 12 KOH = 10 KCl + 2 KBrO3 + 6 H2O
CH4 + S = CS2 + H2S =>
CH4 + 4 S = CS2 + 2 H2S
KI + C6H12 = C6H12I + K =>
KI + C6H12 = C6H12I + K
SrO + H2SO4 = SrSO4 + H2O =>
SrO + H2SO4 = SrSO4 + H2O
K4Fe(CN6)3 + K2Cr2O7 + H2SO4 = K2SO4 + Fe2(SO4)3 + Cr2(SO4)3 + CO2 + NO2 + H2O =>
6 K4Fe(CN6)3 + 91 K2Cr2O7 + 385 H2SO4 = 103 K2SO4 + 3 Fe2(SO4)3 + 91 Cr2(SO4)3 + 18 CO2 + 108 NO2 + 385 H2O
K + CaSO4 = Ca + K2SO4 =>
2 K + CaSO4 = Ca + K2SO4
LiPF6 + H2O = LiF + HF + H3PO4 =>
LiPF6 + 4 H2O = LiF + 5 HF + H3PO4
C10H15 + O2 = CO2 + H2O =>
4 C10H15 + 55 O2 = 40 CO2 + 30 H2O
I{-} + PbO2 + H{+} = I2 + Pb2{+} + H2O =>
14 I{-} + 4 PbO2 + 16 H{+} = 7 I2 + 2 Pb2{+} + 8 H2O
Mg2 + S2 = Mg2S2 =>
Mg2 + S2 = Mg2S2
Co(OH)3 + P2O5 = Co2(HPO4)3 + H2O =>
4 Co(OH)3 + 3 P2O5 = 2 Co2(HPO4)3 + 3 H2O
Ag(NH3)2OH + CH2OH(CHOH)4CHO = CH2OH(CHOH)4COONH4 + Ag + NH3 + H2O =>
2 Ag(NH3)2OH + CH2OH(CHOH)4CHO = CH2OH(CHOH)4COONH4 + 2 Ag + 3 NH3 + H2O
KMnO4 + HCl = MnCl2 + KCl + Cl2 + H2O =>
2 KMnO4 + 16 HCl = 2 MnCl2 + 2 KCl + 5 Cl2 + 8 H2O
C6H5Br + HNO3 + H2SO4 = C6H4BrNO2 + H3O + SO4H =>
C6H5Br + HNO3 + H2SO4 = C6H4BrNO2 + H3O + SO4H
(NH4)3PO4 + CuBr2 = Cu3(PO4)2 + NH4 + Br =>
2(NH4)3PO4 + 3 CuBr2 = Cu3(PO4)2 + 6 NH4 + 6 Br
CuO + HN3 = Cu + N2 + H2O =>
CuO + 2 HN3 = Cu + 3 N2 + H2O
MnCl2 + NaBiO3 + HNO3 = HMnO4 + Bi(NO3)3 + NaNO3 + NaCl + H2O =>
2 MnCl2 + 5 NaBiO3 + 16 HNO3 = 2 HMnO4 + 5 Bi(NO3)3 + NaNO3 + 4 NaCl + 7 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
AgC2H3O2 + Ca(ClO4)2 = AgClO4 + Ca(C2H3O2)2 =>
2 AgC2H3O2 + Ca(ClO4)2 = 2 AgClO4 + Ca(C2H3O2)2
Be(OH)2 + As(OH)3 + NaOH + N2 = NaBe4(AsO7) + H2O + (NH4)2HAsO4 =>
8 Be(OH)2 + 3 As(OH)3 + 2 NaOH + N2 = 2 NaBe4(AsO7) + 9 H2O + (NH4)2HAsO4
CH3CH2Cl + NaI = CH3CH2I + NaCl =>
CH3CH2Cl + NaI = CH3CH2I + NaCl
BaOH + CaNO3 = BaNO3 + CaOH =>
BaOH + CaNO3 = BaNO3 + CaOH
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
MnO4{-} + S2{-} + H2O = Mn2{+} + S + OH{-} =>
2 MnO4{-} + 13 S2{-} + 8 H2O = Mn2{+} + 26 S + 16 OH{-}
HCl + Na2S2O3 = NaCl2 + H2S + O2 =>
8 HCl + 2 Na2S2O3 = 4 NaCl2 + 4 H2S + 3 O2
Fe2O3 + Na2S + H2O = FeS + S + NaOH =>
Fe2O3 + 3 Na2S + 3 H2O = 2 FeS + S + 6 NaOH
O2 + CaCl2 = Ca2O + Cl2 =>
O2 + 4 CaCl2 = 2 Ca2O + 4 Cl2
K2XeO4 + TiCl2 + HCl = Xe + TiCl4 + KCl + H2O =>
K2XeO4 + 3 TiCl2 + 8 HCl = Xe + 3 TiCl4 + 2 KCl + 4 H2O
Zn(s) + H2SO4 = ZnSO4 + H2 =>
Zn(s) + H2SO4 = ZnSO4 + H2
Ag2SO4 + HCl = AgCl + H2(SO4) =>
Ag2SO4 + 2 HCl = 2 AgCl + H2(SO4)
K2XeO4 + TiCl2 + HCl = Xe + TiCl4 + KCl + H2O =>
K2XeO4 + 3 TiCl2 + 8 HCl = Xe + 3 TiCl4 + 2 KCl + 4 H2O
KOH + S = K2S2O3 + K2S + H2O =>
6 KOH + 4 S = K2S2O3 + 2 K2S + 3 H2O
Fe2O3 + OH{-} = FeO4{2-} + H2O + {-} =>
Fe2O3 + 10 OH{-} = 2 FeO4{2-} + 5 H2O + 6e
C2H4S + O2 = CO2 + H2O + SO3 =>
2 C2H4S + 9 O2 = 4 CO2 + 4 H2O + 2 SO3
SO2 + H3PO4 = H2SO3 + P2O5 =>
3 SO2 + 2 H3PO4 = 3 H2SO3 + P2O5
CrCl3 + KBrO3 + KOH = K2CrO4 + KBrO2 + H2O + KCl =>
2 CrCl3 + 3 KBrO3 + 10 KOH = 2 K2CrO4 + 3 KBrO2 + 5 H2O + 6 KCl
NaClO + Fe(NO3)3 + H2 = Fe(OH)3 + HNO3 + NaCl =>
3 NaClO + Fe(NO3)3 + 3 H2 = Fe(OH)3 + 3 HNO3 + 3 NaCl
H2SO4 + Be = H2 + Be2(SO4)2 =>
2 H2SO4 + 2 Be = 2 H2 + Be2(SO4)2
ZnS + HCl = ZnCl2 + H2S = =>
ZnS + 2 HCl = ZnCl2 + H2S
CuCO3 + CH3COOH = Cu(CH3COO) + H2O + CO2 =>
8 CuCO3 + 9 CH3COOH = 8 Cu(CH3COO) + 6 H2O + 10 CO2
I + NaOH = NaI + NaIO3 + H2O =>
6 I + 6 NaOH = 5 NaI + NaIO3 + 3 H2O
K2SO3 + H2SO4 = K2SO4 + H2SO3 = So2 =>
K2SO3 + H2SO4 = K2SO4 + H2SO3
Na2S2O3 + HCl = NaCl + SO2 + S + H2O =>
Na2S2O3 + 2 HCl = 2 NaCl + SO2 + S + H2O
CaCO3 + HNO3 = CaNO3 + HCO3 =>
CaCO3 + HNO3 = CaNO3 + HCO3
C17H33COONa + Fe2(SO4)3 = (C17H33COO)3Fe + Na2SO4 =>
6 C17H33COONa + Fe2(SO4)3 = 2(C17H33COO)3Fe + 3 Na2SO4
(Ca)3(PO4)2 + H2SO4 = CaSO4 + H3PO4 =>
(Ca)3(PO4)2 + 3 H2SO4 = 3 CaSO4 + 2 H3PO4
NaCl + F2 = NaF + Cl2 =>
2 NaCl + F2 = 2 NaF + Cl2
K2Cr2O7 + (NH4)2SO4 = N2 + Cr2O3 + K2SO4 + H2O =>
K2Cr2O7 + (NH4)2SO4 = N2 + Cr2O3 + K2SO4 + 4 H2O
Cu(ii) + AgNO3 = Cu(NO3)2 + Ag =>
Cu(ii) + 2 AgNO3 = Cu(NO3)2 + 2 Ag
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