| Équations équilibrées la veille |
(CH3CO)2O + C2H5OH = CH3CO2C2H5 + CH3COOH
K2O2 + HOH = KOH + O2 =>
2 K2O2 + 2 HOH = 4 KOH + O2
NH3 + CoCl2 = Co(NH2)2 + NH4Cl =>
4 NH3 + CoCl2 = Co(NH2)2 + 2 NH4Cl
Br2 + NaCl = NaBr + Cl =>
Br2 + 2 NaCl = 2 NaBr + 2 Cl
(C4H10)(l) + O(g) = CO2 + H2O =>
(C4H10)(l) + 13 O(g) = 4 CO2 + 5 H2O
Co + NH4SCN = [Co(SCN)4]2 + NH4 =>
2 Co + 8 NH4SCN = [Co(SCN)4]2 + 8 NH4
Al + Pb(NO3)2 = Al(NO3)3 + Pb =>
2 Al + 3 Pb(NO3)2 = 2 Al(NO3)3 + 3 Pb
CH3OH = CO + H2 =>
CH3OH = CO + 2 H2
KMnO4 + KBr = MnO2 + KBrO3 + K2O =>
2 KMnO4 + KBr = 2 MnO2 + KBrO3 + K2O
KBrO3 + HBr = Br + H2O + KBr =>
KBrO3 + 6 HBr = 6 Br + 3 H2O + KBr
KBr + K2CrO7 + H2SO4 = K2SO4 + Cr2(SO4)3 + Br2 + H2O =>
18 KBr + 2 K2CrO7 + 14 H2SO4 = 11 K2SO4 + Cr2(SO4)3 + 9 Br2 + 14 H2O
Pb(NO3)2(aq) + NH3(aq) + H2O = Pb(OH)2 + NH4NO3 =>
Pb(NO3)2(aq) + 2 NH3(aq) + 2 H2O = Pb(OH)2 + 2 NH4NO3
Na + CaF2 = Ca + NaF =>
2 Na + CaF2 = Ca + 2 NaF
Co + I2 = Co{2+} + I{-} =>
Co + I2 = Co{2+} + 2 I{-}
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
NaCl + O = Na2O + Cl =>
2 NaCl + O = Na2O + 2 Cl
V2O5 + Na2CO3 = Na4V2O7 + CO2 =>
V2O5 + 2 Na2CO3 = Na4V2O7 + 2 CO2
FeS2(g) + O2(g) = Fe2O3(S) + SO2(g) =>
4 FeS2(g) + 9 O2(g) = 2 Fe2O3(S) + 6 SO2(g)
Fe3O4(s) + H2(g) = Fe(s) + H2O(l) =>
Fe3O4(s) + 4 H2(g) = 3 Fe(s) + 4 H2O(l)
Al(OH)3 + NH4Cl = AlCl3 + NH3 + H2O =>
Al(OH)3 + 3 NH4Cl = AlCl3 + 3 NH3 + 3 H2O
Al(HI)3 + NaOH = Al(OH)3 + NaI + H2 =>
2 Al(HI)3 + 6 NaOH = 2 Al(OH)3 + 6 NaI + 3 H2
Mg + S = MgS =>
Mg + S = MgS
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Pb(CH3COO)2 + NaBr = Pb(Br)2 + Na(CH3COO) =>
Pb(CH3COO)2 + 2 NaBr = Pb(Br)2 + 2 Na(CH3COO)
H{+} + Fe + NO3{-} = Fe{3+} + NO + H2O =>
4 H{+} + Fe + NO3{-} = Fe{3+} + NO + 2 H2O
NH3 + CoCl2 = CoH3 + NCl2 =>
NH3 + CoCl2 = CoH3 + NCl2
C4H4 + H2 = C4H10 =>
C4H4 + 3 H2 = C4H10
HNO3 + Cu2S = CuSO4 + Cu(NO3)2 + NO2 + H2O =>
12 HNO3 + Cu2S = CuSO4 + Cu(NO3)2 + 10 NO2 + 6 H2O
C2H5(l) + O2(g) = CO2(g) + H20(g) =>
4 C2H5(l) + 8 O2(g) = 8 CO2(g) + H20(g)
CuO + CH3OH = HCHO + Cu + H2O =>
CuO + CH3OH = HCHO + Cu + H2O
CH4 + NaOH = CH3OH + NaH =>
CH4 + NaOH = CH3OH + NaH
H2PO4 = H2P2O7H2O =>
2 H2PO4 = H2P2O7H2O
Co + I2 = CoI =>
2 Co + I2 = 2 CoI
Na(OH)2 + MgCl2 = NaCl2 + Mg(OH)2 =>
Na(OH)2 + MgCl2 = NaCl2 + Mg(OH)2
V2O5 + Na2CO3 = Na3VO4 + CO2 =>
V2O5 + 3 Na2CO3 = 2 Na3VO4 + 3 CO2
NaCl + O = Na2O + Cl2 =>
2 NaCl + O = Na2O + Cl2
HCl(aq) + Ni(s) = NiCl2(aq) + H2(g) =>
2 HCl(aq) + Ni(s) = NiCl2(aq) + H2(g)
ZnBr2(aq) + K3PO4(aq) = ZnPO4(aq) + K3Br2(aq) =>
ZnBr2(aq) + K3PO4(aq) = ZnPO4(aq) + K3Br2(aq)
CaHSO3 + O2 = CaSO4 + H2O =>
4 CaHSO3 + 3 O2 = 4 CaSO4 + 2 H2O
ZnCl2 + Na = Zn + NaCl =>
ZnCl2 + 2 Na = Zn + 2 NaCl
FeS2(g) + O2(g) = Fe2O3(g) + SO2(g) =>
4 FeS2(g) + 11 O2(g) = 2 Fe2O3(g) + 8 SO2(g)
PCl3 + Cl2 = PCl5 =>
PCl3 + Cl2 = PCl5
C6H10O5(s) + O2(g) = CO2(g) + H2O(l) =>
C6H10O5(s) + 6 O2(g) = 6 CO2(g) + 5 H2O(l)
AlCl3 + Ag = Al3 + AgCl =>
3 AlCl3 + 9 Ag = Al3 + 9 AgCl
Cs2CO3 + HCl = Cs2Cl + HCO3 =>
Cs2CO3 + HCl = Cs2Cl + HCO3
Pb(CH3COO)2 + NaBr = PbBr2 + Na(CH3COO) =>
Pb(CH3COO)2 + 2 NaBr = PbBr2 + 2 Na(CH3COO)
HCl + Cr = CrCl2 + H2 =>
2 HCl + Cr = CrCl2 + H2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
COCl2 + NH3 = NH4Cl + CO(NH2)2 =>
COCl2 + 4 NH3 = 2 NH4Cl + CO(NH2)2
CrO3 + H2O = H2Cr2O7 =>
2 CrO3 + H2O = H2Cr2O7
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