| Équations équilibrées la veille |
K2Cr2O7 + 14 HCl = 2 CrCl3 + 2 KCl3 + Cl2 + 7 H2O
Ca(NO3)2 + LiCl = CaCl2 + LiNO3 =>
Ca(NO3)2 + 2 LiCl = CaCl2 + 2 LiNO3
FeCO3 + CO(g) = Fe(s) + CO2(g) =>
FeCO3 + CO(g) = Fe(s) + 2 CO2(g)
NaClO2 + C6H8O7 + H2O = H3O{+} + ClO2{-} + Na3C6H5O7 =>
3 NaClO2 + C6H8O7 + 3 H2O = 3 H3O{+} + 3 ClO2{-} + Na3C6H5O7
Ba(ClO4)2 + KCl = KClO4 + BaCl2 =>
Ba(ClO4)2 + 2 KCl = 2 KClO4 + BaCl2
Na2SO4 + BaCl2 = NaCl + Ba{2+} + SO4{2-} =>
Na2SO4 + BaCl2 = 2 NaCl + Ba{2+} + SO4{2-}
H2SO4 + Pt = Pt2(SO4)5 + H2 =>
5 H2SO4 + 2 Pt = Pt2(SO4)5 + 5 H2
P4 + S8 = P4S10 =>
4 P4 + 5 S8 = 4 P4S10
Si(OH)4 + NaBr = SiBr4 + NaOH =>
Si(OH)4 + 4 NaBr = SiBr4 + 4 NaOH
BaCl2(aq) + Na2SO4(aq) = BaSO4 + NaCl(g) =>
BaCl2(aq) + Na2SO4(aq) = BaSO4 + 2 NaCl(g)
Al(OH)3 + KOH = Al(OK)3 + H2O =>
Al(OH)3 + 3 KOH = Al(OK)3 + 3 H2O
Ni + Hg(No3)2 = Hg + Ni(No3)2 =>
Ni + Hg(No3)2 = Hg + Ni(No3)2
Br2 + O2 = Br2O5 =>
2 Br2 + 5 O2 = 2 Br2O5
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
ZnO2{2-} + H2O = [Zn(OH)4]{2-} =>
ZnO2{2-} + 2 H2O = [Zn(OH)4]{2-}
Na2O + H2SO4 = H2O + Na2SO4 =>
Na2O + H2SO4 = H2O + Na2SO4
Na + H2CO3 = (Na)2CO3 + H2 =>
2 Na + H2CO3 = (Na)2CO3 + H2
Pb(NO3)2 + AgI = PbI2 + AgNO3 =>
Pb(NO3)2 + 2 AgI = PbI2 + 2 AgNO3
MeCOOH + C6H13OH = H2O + MeCO2C6H13 =>
MeCOOH + C6H13OH = H2O + MeCO2C6H13
CaCO3 + NH3 = Ca(NH2)2 + H2CO3 =>
CaCO3 + 2 NH3 = Ca(NH2)2 + H2CO3
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
Ca2Si + Cl2 = CaCl2 + SiCl4 =>
Ca2Si + 4 Cl2 = 2 CaCl2 + SiCl4
KIO3 + K2S + H2SO4 = I2 + K2SO4 + H2O =>
8 KIO3 + 5 K2S + 4 H2SO4 = 4 I2 + 9 K2SO4 + 4 H2O
C6H8NCl + (CH3CO)2O + CH3CO2Na = C8H9NO + C2H4O2 + NaCl =>
C6H8NCl + (CH3CO)2O + CH3CO2Na = C8H9NO + 2 C2H4O2 + NaCl
Fe(NO2)2 + HNO3 = Fe(NO3)3 + NO + H2O =>
3 Fe(NO2)2 + 8 HNO3 = 3 Fe(NO3)3 + 5 NO + 4 H2O
BF3(g) + H2O(l) = HF(aq) + H3BO3(aq) =>
BF3(g) + 3 H2O(l) = 3 HF(aq) + H3BO3(aq)
PbS + H2O2 = PbSO4 + H2O =>
PbS + 4 H2O2 = PbSO4 + 4 H2O
[Cr(N2H4CO)6]4[Cr(CN)6]3 + KMnO4 + H2SO4 = K2Cr2 + MnSO4 + CO2 + KNO3 + K2SO4 + H2O =>
10[Cr(N2H4CO)6]4[Cr(CN)6]3 + 1078 KMnO4 + 1252 H2SO4 = 35 K2Cr2 + 1078 MnSO4 + 420 CO2 + 660 KNO3 + 174 K2SO4 + 1732 H2O
CuSO4 + HCl = CuCl2 + H2SO4 =>
CuSO4 + 2 HCl = CuCl2 + H2SO4
FeS + H2SO4 = FeSO4 + H2 + S =>
FeS + H2SO4 = FeSO4 + H2 + S
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
HBr(ac) + NH3(ac) = NH4 + Br =>
HBr(ac) + NH3(ac) = NH4 + Br
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
CuSO4(aq) + KF(aq) = CuF2 + K2SO4(aq) =>
CuSO4(aq) + 2 KF(aq) = CuF2 + K2SO4(aq)
Cr(NO3)3 + Na2Se = Cr2Se3 + NaNO3 =>
2 Cr(NO3)3 + 3 Na2Se = Cr2Se3 + 6 NaNO3
CaO + P2O5 = Ca3(PO4)2 =>
3 CaO + P2O5 = Ca3(PO4)2
H2O2 = O2 + H{+} + e =>
H2O2 = O2 + 2 H{+} + 2e
CH2O + H2 = CH3OH =>
CH2O + H2 = CH3OH
Ca(OH)2 + Na2CO3 = NaOH + CaCO3 =>
Ca(OH)2 + Na2CO3 = 2 NaOH + CaCO3
K3[Fe(CN)6] + KCNS = K4[Fe(CN)6] + (CNS)6 =>
6 K3[Fe(CN)6] + 6 KCNS = 6 K4[Fe(CN)6] + (CNS)6
C2H5O + H2S = H2SO4 + C2H5 =>
4 C2H5O + H2S = H2SO4 + 4 C2H5
NaClO2 + C6H8O7 + H2O = H3O{+} + ClO2{-} + Na3C6H5O7 =>
3 NaClO2 + C6H8O7 + 3 H2O = 3 H3O{+} + 3 ClO2{-} + Na3C6H5O7
Ba3(AsO4)2 + HNO3 = Ba(NO3)2 + H3AsO4 =>
Ba3(AsO4)2 + 6 HNO3 = 3 Ba(NO3)2 + 2 H3AsO4
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
H3AsO3 + Ca(OH)2 = Ca3As2 + H2O + O2 =>
2 H3AsO3 + 3 Ca(OH)2 = Ca3As2 + 6 H2O + 3 O2
H3PO4 + CaOH = Ca3PO4 + H2O =>
H3PO4 + 3 CaOH = Ca3PO4 + 3 H2O
Br2 + O2 = Br2O5 =>
2 Br2 + 5 O2 = 2 Br2O5
Cr2O7 + N2O4 = Cr + NO3 =>
2 Cr2O7 + 7 N2O4 = 4 Cr + 14 NO3
H2S + HSO4 = S + H2O =>
7 H2S + 2 HSO4 = 9 S + 8 H2O
NaCl + CaCl2 = NaCa + Cl =>
NaCl + CaCl2 = NaCa + 3 Cl
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