| Équations équilibrées la veille |
5 H2SeO3 + 2 H2S = 5 Se + 2 SO4 + 7 H2O
Zn(s) + H2SO4(aq) = ZnSO4(aq) + H2(g) =>
Zn(s) + H2SO4(aq) = ZnSO4(aq) + H2(g)
C2H8N2 + O2 = CO2 + H2O + N =>
C2H8N2 + 4 O2 = 2 CO2 + 4 H2O + 2 N
COH14 + O2 = CO2 + H2O =>
COH14 + 4 O2 = CO2 + 7 H2O
Mg(OH)2 + Al = Mg + Al2O3 + H2 =>
3 Mg(OH)2 + 4 Al = 3 Mg + 2 Al2O3 + 3 H2
C2H5Cl + Cl2 = C2H4Cl + HCl =>
2 C2H5Cl + Cl2 = 2 C2H4Cl + 2 HCl
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
Na(s) + H2O(e) = NaHO(aq) + H2(g) =>
2 Na(s) + 2 H2O(e) = 2 NaHO(aq) + H2(g)
Al2(SO4)3 + Ca(OH)2 = Al(OH)3 + CaSO4 =>
Al2(SO4)3 + 3 Ca(OH)2 = 2 Al(OH)3 + 3 CaSO4
Rb + C2H4O2 = RbC2H3O2 + H =>
Rb + C2H4O2 = RbC2H3O2 + H
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Na2CrO4 + H2O = H2CrO4 + NaOH =>
Na2CrO4 + 2 H2O = H2CrO4 + 2 NaOH
Cr(OH)3 + NaOH = Na3Cr(OH)6 =>
Cr(OH)3 + 3 NaOH = Na3Cr(OH)6
IO2 + OH{-} = IO3{-} + H2O + e =>
IO2 + 2 OH{-} = IO3{-} + H2O + e
A2 + B2 = AB2 =>
A2 + 2 B2 = 2 AB2
Dy(s) + F2(g) = DyF3(s) =>
2 Dy(s) + 3 F2(g) = 2 DyF3(s)
NH4OH + H3PO4 = (NH4)3PO4 + H2O =>
3 NH4OH + H3PO4 = (NH4)3PO4 + 3 H2O
Mg + Na2CO3 = MgCO3 + Na =>
Mg + Na2CO3 = MgCO3 + 2 Na
C2H5NSCl + O2 = CO2 + H2O + NO + SO3 + HCl =>
C2H5NSCl + 5 O2 = 2 CO2 + 2 H2O + NO + SO3 + HCl
NaCl + KNO3 = NaNO3 + KCl* =>
NaCl + KNO3 = NaNO3 + KCl*
CH2O2 + NaOH = CHO2Na + H2O =>
CH2O2 + NaOH = CHO2Na + H2O
H2SO4 + Al = Al2(SO4)3 + H2 =>
3 H2SO4 + 2 Al = Al2(SO4)3 + 3 H2
CH3OHHBr = CH3BrH2O =>
CH3OHHBr = CH3BrH2O
(NH4)2MoO4 + (NH4)2S = (NH4)2MoS4 + NH3 + H2O =>
(NH4)2MoO4 + 4(NH4)2S = (NH4)2MoS4 + 8 NH3 + 4 H2O
NaCl = Na + Cl2 =>
2 NaCl = 2 Na + Cl2
Cu2Cl(OH)3 + H2S = CuS + HCl + H2O =>
Cu2Cl(OH)3 + 2 H2S = 2 CuS + HCl + 3 H2O
(CH3COO)2Zn + K3[Fe(CN)6] = CH3COOK + Zn3[Fe(CN)6]2 =>
3(CH3COO)2Zn + 2 K3[Fe(CN)6] = 6 CH3COOK + Zn3[Fe(CN)6]2
NH3(g) + CH4(g) + O2(g) = HCN(g) + H2O(g) =>
2 NH3(g) + 2 CH4(g) + 3 O2(g) = 2 HCN(g) + 6 H2O(g)
HBr + Mg(OH)2 = H3O2 + BrMg =>
HBr + Mg(OH)2 = H3O2 + BrMg
I2 + CrO7{-2} + H{+} = IO3{-} + Cr{+3} + H2O =>
9 I2 + 10 CrO7{-2} + 32 H{+} = 18 IO3{-} + 10 Cr{+3} + 16 H2O
HI + K = KI + H2 =>
2 HI + 2 K = 2 KI + H2
KMnO4 + NaI + H2SO4 = I2 + MnSO4 + Na2SO4 + K2SO4 + H2O =>
2 KMnO4 + 10 NaI + 8 H2SO4 = 5 I2 + 2 MnSO4 + 5 Na2SO4 + K2SO4 + 8 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
C8H18 + CO2 = CO + H2O =>
C8H18 + 17 CO2 = 25 CO + 9 H2O
FeCl3 + Na4[Fe(CN)6] = Fe4[Fe(CN)6]3 + NaCl =>
4 FeCl3 + 3 Na4[Fe(CN)6] = Fe4[Fe(CN)6]3 + 12 NaCl
LiAlSi2O6 + H2SO4 = HAlSi2O6 + Li2SO4 =>
2 LiAlSi2O6 + H2SO4 = 2 HAlSi2O6 + Li2SO4
Fe(OH)3 + BaO = Fe2(BaO2)3 + H2O =>
2 Fe(OH)3 + 3 BaO = Fe2(BaO2)3 + 3 H2O
CH2S + NH3 = CH4 + S + N =>
3 CH2S + 2 NH3 = 3 CH4 + 3 S + 2 N
H2C2O2 + NaOH = Na2C2O2 + H2O =>
H2C2O2 + 2 NaOH = Na2C2O2 + 2 H2O
(CuO)SO4 + H2O = Cu(OH)2 + SO4 =>
(CuO)SO4 + H2O = Cu(OH)2 + SO4
K2CrO7 + HCl = KCl + Cr2Cl3 + H2O + Cl2 =>
4 K2CrO7 + 56 HCl = 8 KCl + 2 Cr2Cl3 + 28 H2O + 21 Cl2
Zn + BrO4{-} + OH{-} + H2O = [Zn(OH)4]{-2} + Br{-} =>
4 Zn + BrO4{-} + 8 OH{-} + 4 H2O = 4[Zn(OH)4]{-2} + Br{-}
Zn3N2 = Zn + N2 =>
Zn3N2 = 3 Zn + N2
Fe(No3)3 + Na3PO4 = Fe3(PO4)3 + NaNo3 =>
3 Fe(No3)3 + 3 Na3PO4 = Fe3(PO4)3 + 9 NaNo3
SrCO3 + BaCO3 + CaCO3 + CuO = Sr18Ba2Ca22Cu30O88 + CO2 + C =>
18 SrCO3 + 2 BaCO3 + 22 CaCO3 + 30 CuO = Sr18Ba2Ca22Cu30O88 + 34 CO2 + 8 C
Zn(s) + CuSO4(at) = Cu(s) + ZnSO4(aq) =>
Zn(s) + CuSO4(at) = Cu(s) + ZnSO4(aq)
FeCl2 + H2S = FeS + HCl =>
FeCl2 + H2S = FeS + 2 HCl
AlBr3 + K2SO4 = KBr + Al2(SO4)3 =>
2 AlBr3 + 3 K2SO4 = 6 KBr + Al2(SO4)3
LiOH + H3PO4 = Li3PO4 + H2O =>
3 LiOH + H3PO4 = Li3PO4 + 3 H2O
PbO2(S) = Pb(S) + O2(g) =>
PbO2(S) = Pb(S) + O2(g)
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