| Équations équilibrées la veille | Équations équilibrées le lendemain |
Au + 3 HNO3 + 4 HCl = HAuCl4 + 3 NO2 + 3 H2O
KNO3 + H2SO4 = K2SO4 + HNO3 =>
2 KNO3 + H2SO4 = K2SO4 + 2 HNO3
C7H17 + O2 = CO2 + H2O =>
4 C7H17 + 45 O2 = 28 CO2 + 34 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
LiAlH4(s) + AlCl3(s) = AlH3(s) + LiCl(s) =>
3 LiAlH4(s) + AlCl3(s) = 4 AlH3(s) + 3 LiCl(s)
C3H8(g) + O2(g) = CO2(g) + H2O(l) =>
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4 H2O(l)
Cr(NO3) + LiOH = CrOH + LiNO3 =>
Cr(NO3) + LiOH = CrOH + LiNO3
Au + HNO3 + HCl = HAuCl4 + NO2 + H2O =>
Au + 3 HNO3 + 4 HCl = HAuCl4 + 3 NO2 + 3 H2O
Al(SO4)3 + NaOH = Al(OH)3 + NaSO4 =>
Al(SO4)3 + 3 NaOH = Al(OH)3 + 3 NaSO4
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
[AsO3]3{-} + [NO3]{-} + H{+} = [AsO4]3{-} + N2O3 + H2O =>
2[AsO3]3{-} + 6[NO3]{-} + 6 H{+} = 2[AsO4]3{-} + 3 N2O3 + 3 H2O
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
K2Cr2O7 + HCl = KCl + CrCl3 + Cl2 + H2O =>
K2Cr2O7 + 14 HCl = 2 KCl + 2 CrCl3 + 3 Cl2 + 7 H2O
H2O + CuSO4 = CuO + H2SO4 =>
H2O + CuSO4 = CuO + H2SO4
Cl2 + NaOH = NaCl + NaClO3 + H20 =>
30 Cl2 + 60 NaOH = 40 NaCl + 20 NaClO3 + 3 H20
Al2O3(s) + H2SO4(aq) = Al2(SO4)3(aq) + H2O(l) =>
Al2O3(s) + 3 H2SO4(aq) = Al2(SO4)3(aq) + 3 H2O(l)
Cu2S + O2 = CuO + SO2 =>
Cu2S + 2 O2 = 2 CuO + SO2
NaCl = Na + Cl2 =>
2 NaCl = 2 Na + Cl2
H + O = H2O =>
2 H + O = H2O
BeO + H2O = Be(OH)2 =>
BeO + H2O = Be(OH)2
SrCO3 + HBr = SrBr2 + H2O + CO2 =>
SrCO3 + 2 HBr = SrBr2 + H2O + CO2
AgNO3 + H2SO4 = Ag2SO4 + HNO3 =>
2 AgNO3 + H2SO4 = Ag2SO4 + 2 HNO3
Cu(OH)2 + C6H12O6 = CO2 + H2O + Cu2O =>
24 Cu(OH)2 + C6H12O6 = 6 CO2 + 30 H2O + 12 Cu2O
Al2(SO4)3 + NaOH = Al(OH)3 + Na2SO4 =>
Al2(SO4)3 + 6 NaOH = 2 Al(OH)3 + 3 Na2SO4
FeCl2 + Na2CO3 = FeCO3 + NaCl =>
FeCl2 + Na2CO3 = FeCO3 + 2 NaCl
H{+} + MnO4{-} + Cl{-} = Cl2 + H2O + Mn =>
16 H{+} + 2 MnO4{-} + 14 Cl{-} = 7 Cl2 + 8 H2O + 2 Mn
S + KOH = H2O + K2S + K2SO3 =>
3 S + 6 KOH = 3 H2O + 2 K2S + K2SO3
S3{2-} + BrO3{-} + OH{-} = Br{-} + SO4{2-} + H2O =>
3 S3{2-} + 10 BrO3{-} + 12 OH{-} = 10 Br{-} + 9 SO4{2-} + 6 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
S2{2-} + BrO3{-} + OH{-} = Br{-} + SO4{2-} + H2O =>
3 S2{2-} + 7 BrO3{-} + 6 OH{-} = 7 Br{-} + 6 SO4{2-} + 3 H2O
Cr(NO3)3 + LiOH = Cr(OH)3 + LiNO3 =>
Cr(NO3)3 + 3 LiOH = Cr(OH)3 + 3 LiNO3
S4{2-} + BrO3{-} + OH{-} = Br{-} + SO4{2-} + H2O =>
3 S4{2-} + 13 BrO3{-} + 18 OH{-} = 13 Br{-} + 12 SO4{2-} + 9 H2O
SO3 + HCl = Cl + HSO3 =>
SO3 + HCl = Cl + HSO3
S5{2-} + BrO3{-} + OH{-} = Br{-} + SO4{2-} + H2O =>
3 S5{2-} + 16 BrO3{-} + 24 OH{-} = 16 Br{-} + 15 SO4{2-} + 12 H2O
Pb(OH)4 + Cu2O = PbO2 + CuOH =>
Pb(OH)4 + 2 Cu2O = PbO2 + 4 CuOH
H2S + KOH = H2O + K2S =>
H2S + 2 KOH = 2 H2O + K2S
KClO3 + CrCl3 + KOH = K2CrO4 + KCl + H2O =>
KClO3 + 2 CrCl3 + 10 KOH = 2 K2CrO4 + 7 KCl + 5 H2O
Au + HNO3 + HCl = HAuCl4 + NO + H2O =>
Au + HNO3 + 4 HCl = HAuCl4 + NO + 2 H2O
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Na2Cr2O7 + Na2SO3 + H2SO4 = Na2SO4 + Cr2(SO4)3 + H2O =>
Na2Cr2O7 + 3 Na2SO3 + 4 H2SO4 = 4 Na2SO4 + Cr2(SO4)3 + 4 H2O
Bi(NO3)3 + NaOH + Sn(OH)2 = Bi + Na2(Sn(OH)6) + NaNO3 =>
2 Bi(NO3)3 + 12 NaOH + 3 Sn(OH)2 = 2 Bi + 3 Na2(Sn(OH)6) + 6 NaNO3
Cr + H2SO4 = CrSO4 + H2 =>
Cr + H2SO4 = CrSO4 + H2
Sn(OH)2 + NaOH = NaSn(OH)3 =>
Sn(OH)2 + NaOH = NaSn(OH)3
NH + Mg = MgN + H =>
NH + Mg = MgN + H
Sn(OH)2 + NaOH = Na2Sn(OH)4 =>
Sn(OH)2 + 2 NaOH = Na2Sn(OH)4
Cr + H2SO4 = CrSO4 + H2 =>
Cr + H2SO4 = CrSO4 + H2
Cr(NO2)2 + (NH4)2SO4 = CrSO4 + NH4NO2 =>
Cr(NO2)2 + (NH4)2SO4 = CrSO4 + 2 NH4NO2
As2S3 + HClO3 + H20 = H3AsO4 + H2SO4 + HCl =>
15 As2S3 + 100 HClO3 + 9 H20 = 30 H3AsO4 + 45 H2SO4 + 100 HCl
Sn(OH)2 + NaOH + Bi(NO3)3 = Na2Sn(OH)5 + Bi + NaNO3 =>
3 Sn(OH)2 + 9 NaOH + Bi(NO3)3 = 3 Na2Sn(OH)5 + Bi + 3 NaNO3
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
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| Équations équilibrées la veille | Équations équilibrées le lendemain |
Équations équilibrées sur03/24/13
Équations équilibrées sur04/23/12
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