| Équations équilibrées la veille |
3 CaCO3 + 2 H3PO4 = Ca3(PO4)2 + 3 H2CO3
I2 + NaOH = NaI + H2O + NaIO =>
I2 + 2 NaOH = NaI + H2O + NaIO
CH3CHBrCH2CH3 + NaOH = CH3CHCHCH3 + NaBr + H2O =>
CH3CHBrCH2CH3 + NaOH = CH3CHCHCH3 + NaBr + H2O
Ae + Ce2 = AeCe3 =>
2 Ae + 3 Ce2 = 2 AeCe3
H2O2 + Cr(OH)6{-3} = OH{-} + CrO4{-2} + H2O =>
3 H2O2 + 2 Cr(OH)6{-3} = 2 OH{-} + 2 CrO4{-2} + 8 H2O
Tl2O3(s) + NH2OH(aq) = TlOH(s) + N2(g) + H2O =>
Tl2O3(s) + 4 NH2OH(aq) = 2 TlOH(s) + 2 N2(g) + 5 H2O
SnCl + K2Cr2O7 + HCl = H2SnCl6 + KCl + CrCl3 + H2O =>
2 SnCl + K2Cr2O7 + 18 HCl = 2 H2SnCl6 + 2 KCl + 2 CrCl3 + 7 H2O
Zn + Cu{2+} = Zn{2±} + Cu =>
Zn + Cu{2+} = Zn{2±} + Cu
NaAlO2 + NaOH = Na2AlO3 + H4 =>
4 NaAlO2 + 4 NaOH = 4 Na2AlO3 + H4
Al(OH)2Cl = Al2O3 + HCl + H2O =>
2 Al(OH)2Cl = Al2O3 + 2 HCl + H2O
Fe + Co(NO3)2 = Co + FeNO3 =>
2 Fe + Co(NO3)2 = Co + 2 FeNO3
KClO3 + C = KCl + CO =>
KClO3 + 3 C = KCl + 3 CO
Na2SO3(s) + HCl(aq) = SO2(g) + NaCl(aq) + H2O(l) =>
Na2SO3(s) + 2 HCl(aq) = SO2(g) + 2 NaCl(aq) + H2O(l)
Mg + KClO3 = Mg(ClO3)2 + K =>
Mg + 2 KClO3 = Mg(ClO3)2 + 2 K
MnO2 + HF = MnF2 + O2 + H2O =>
2 MnO2 + 4 HF = 2 MnF2 + O2 + 2 H2O
C6H5Cl + SiCl4 + Na = Si(C6H5)4 + NaCl =>
4 C6H5Cl + SiCl4 + 8 Na = Si(C6H5)4 + 8 NaCl
Na(OH) + Mg(SO4)2 = Na(SO4) + Mg(OH)2 =>
2 Na(OH) + Mg(SO4)2 = 2 Na(SO4) + Mg(OH)2
CdSO4 + Zn = ZnSO4 + Cd =>
CdSO4 + Zn = ZnSO4 + Cd
C13H10O + NaBH4 + H2O = C13H12O + B(OH)3 + NaOH =>
4 C13H10O + NaBH4 + 4 H2O = 4 C13H12O + B(OH)3 + NaOH
Cu3FeS3(s) + O2(g) = Cu(s) + FeO(s) + SO2(g) =>
2 Cu3FeS3(s) + 7 O2(g) = 6 Cu(s) + 2 FeO(s) + 6 SO2(g)
Na2CO3 + AgCl = Na2Cl + AgCO3 =>
Na2CO3 + AgCl = Na2Cl + AgCO3
CH3Co2H + NaOH = CH3Co2Na + H2O =>
CH3Co2H + NaOH = CH3Co2Na + H2O
K2CrO4 + AlBr3 = Al2(CrO4)3 + KBr =>
3 K2CrO4 + 2 AlBr3 = Al2(CrO4)3 + 6 KBr
Cl + HNO3 = ClNO3 + H2 =>
2 Cl + 2 HNO3 = 2 ClNO3 + H2
Zn(OH)2 + Mg(OH)2 = MgZnO2 + H2O =>
Zn(OH)2 + Mg(OH)2 = MgZnO2 + 2 H2O
C2H2O4 + Pb(OH)4 = Pb(C2O4)2 + H2O =>
2 C2H2O4 + Pb(OH)4 = Pb(C2O4)2 + 4 H2O
Fe(ClO3)3 + Li2O = LiClO3 + Fe2O3 =>
2 Fe(ClO3)3 + 3 Li2O = 6 LiClO3 + Fe2O3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
C2H4(g) + O2(g) = CO2(g) + H2O(l) =>
C2H4(g) + 3 O2(g) = 2 CO2(g) + 2 H2O(l)
H3PO4 + NH3 = (NH4)3PO4 =>
H3PO4 + 3 NH3 = (NH4)3PO4
NH2 + O2 = NO2 + H2O =>
2 NH2 + 3 O2 = 2 NO2 + 2 H2O
AgF + K2CO3 = Ag2CO3 + KF =>
2 AgF + K2CO3 = Ag2CO3 + 2 KF
BaCrO4 + NaOH = Ba(OH)2 + Na2CrO4 =>
BaCrO4 + 2 NaOH = Ba(OH)2 + Na2CrO4
H2O + ClO2{-} + As = ClO{-} + AsO2{-} + H{+} =>
H2O + 3 ClO2{-} + 2 As = 3 ClO{-} + 2 AsO2{-} + 2 H{+}
KNO3 + S + C = K2S + CO2 + N2 =>
2 KNO3 + S + 3 C = K2S + 3 CO2 + N2
H4 + O4 + N4 = H2O2N2 =>
H4 + O4 + N4 = 2 H2O2N2
Fe + Co(NO3)2 = Co + FeNO3 =>
2 Fe + Co(NO3)2 = Co + 2 FeNO3
Cu2O3 + C = Cu + CO2 =>
2 Cu2O3 + 3 C = 4 Cu + 3 CO2
HReO4 + KI + HCl = K2ReCl6 + I2 + H2O + KCl =>
2 HReO4 + 6 KI + 14 HCl = 2 K2ReCl6 + 3 I2 + 8 H2O + 2 KCl
H2S + KOK = HOH + K2S =>
H2S + KOK = HOH + K2S
Na2CO3 + CaH2 = NaH + CaCO3 =>
Na2CO3 + CaH2 = 2 NaH + CaCO3
Pb + NaOH + H2O = Na2PbO3 + H2 =>
Pb + 2 NaOH + H2O = Na2PbO3 + 2 H2
C11H24 + O2 = CO2 + H2O =>
C11H24 + 17 O2 = 11 CO2 + 12 H2O
K2Cr2O7 + H2SO4 + CH4 = K2SO4 + Cr2(SO4)3 + H2O + CO2 =>
4 K2Cr2O7 + 16 H2SO4 + 3 CH4 = 4 K2SO4 + 4 Cr2(SO4)3 + 22 H2O + 3 CO2
(NH4)2[Co(CNS)4] + H2O = [Co(H2O)6](CNS)2 + NH4CNS =>
(NH4)2[Co(CNS)4] + 6 H2O = [Co(H2O)6](CNS)2 + 2 NH4CNS
CaBr2 + Na2S = CaS + NaBr =>
CaBr2 + Na2S = CaS + 2 NaBr
H2O2 + Cr(OH)6{-3} = OH{-} + CrO4{-2} + H2O =>
3 H2O2 + 2 Cr(OH)6{-3} = 2 OH{-} + 2 CrO4{-2} + 8 H2O
K2Cr2O7 + KCl + H2SO4 = CrO2Cl2 + H2O + K2SO4 =>
K2Cr2O7 + 4 KCl + 3 H2SO4 = 2 CrO2Cl2 + 3 H2O + 3 K2SO4
Al + Na2CO3 = Al(CO3)3 + Na2 =>
Al + 3 Na2CO3 = Al(CO3)3 + 3 Na2
CaCO3(aq) + HC2H3O2(aq) = Ca(C2H3O2)2 + H20(l) + CO2(g) =>
10 CaCO3(aq) + 25 HC2H3O2(aq) = 10 Ca(C2H3O2)2 + 2 H20(l) + 20 CO2(g)
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