| Équations équilibrées la veille | Équations équilibrées le lendemain |
C2H4(OH)2 + 4 KOH = C2H2(OH)2O + 3 H2O + 4 K
C10H18O2 + O = CO2 + H2O =>
C10H18O2 + 27 O = 10 CO2 + 9 H2O
K2C2H2O2 + H2O = HK2C2H2O2 + OH =>
K2C2H2O2 + H2O = HK2C2H2O2 + OH
NH3(aq) + Cu(NO3)2(aq) = Cu(NH3)4(NO3)2(aq) =>
4 NH3(aq) + Cu(NO3)2(aq) = Cu(NH3)4(NO3)2(aq)
C31H34O11 + O2 = CO + H2O =>
2 C31H34O11 + 37 O2 = 62 CO + 34 H2O
CrO4 + Cu + H2O = CrOH3 + Cu(OH)2 =>
2 CrO4 + 9 Cu + 12 H2O = 2 CrOH3 + 9 Cu(OH)2
C3H6O2(s) + O2(s) = CO2(s) + H2O(s) =>
2 C3H6O2(s) + 7 O2(s) = 6 CO2(s) + 6 H2O(s)
Al2(SO4)3(s) + H2O(l) = Al2O3(aq) + H2SO4(aq) =>
Al2(SO4)3(s) + 3 H2O(l) = Al2O3(aq) + 3 H2SO4(aq)
Cr + SO3 = Cr2(SO3)3 =>
2 Cr + 3 SO3 = Cr2(SO3)3
C2H6 + O2 = C2H2 + H2O =>
C2H6 + O2 = C2H2 + 2 H2O
H3BO3 + H2SO4 = HB(SO4)2 + H2O =>
H3BO3 + 2 H2SO4 = HB(SO4)2 + 3 H2O
HCOOH + NH3 = NH4HCOO =>
HCOOH + NH3 = NH4HCOO
Cs(s) + H2O(l) = CsO + H =>
Cs(s) + H2O(l) = CsO + 2 H
MgCl2 + Na2HPO4 + NH4OH = NaCl + MgNH4PO4 + H2O =>
MgCl2 + Na2HPO4 + NH4OH = 2 NaCl + MgNH4PO4 + H2O
H2S + PbCeO4 = PbS + H2CeO4 =>
H2S + PbCeO4 = PbS + H2CeO4
Al(BH4)3 + NH3 + NO2 = Al2O3 + BN + H2 =>
8 Al(BH4)3 + 18 NH3 + 6 NO2 = 4 Al2O3 + 24 BN + 75 H2
NaCl + Mg = MgCl2 + Na2 =>
2 NaCl + Mg = MgCl2 + Na2
CH3COONH4 + FeCl3 = NH4Cl + Fe(C2H3O2)3 =>
3 CH3COONH4 + FeCl3 = 3 NH4Cl + Fe(C2H3O2)3
HCOH + Cl2 = CO + HCl =>
HCOH + Cl2 = CO + 2 HCl
K2(Cr2O7) + H2(SO4) = K2(SO4) + H2O + O2 + Cr2(SO4)3 =>
2 K2(Cr2O7) + 8 H2(SO4) = 2 K2(SO4) + 8 H2O + 3 O2 + 2 Cr2(SO4)3
H2S + SO3 = H2S2O3 =>
H2S + SO3 = H2S2O3
K + Cl2 = KCl =>
2 K + Cl2 = 2 KCl
NaCl + KNO3 = Na(NO3) + KCl =>
NaCl + KNO3 = Na(NO3) + KCl
Mn + H2SO4 = MnSO4 + S + H2O =>
3 Mn + 4 H2SO4 = 3 MnSO4 + S + 4 H2O
Fe3C + O2 = CO2 + Fe2O3 =>
4 Fe3C + 13 O2 = 4 CO2 + 6 Fe2O3
KI + H2SO4 + HMnO4 = I2 + MnSO4 + K2SO4 + H2O =>
10 KI + 7 H2SO4 + 2 HMnO4 = 5 I2 + 2 MnSO4 + 5 K2SO4 + 8 H2O
NH4(OH) + H3PO4 = (NH4)3PO4 + H2O =>
3 NH4(OH) + H3PO4 = (NH4)3PO4 + 3 H2O
Cr(H20)6 + (NH4)2S2O8 + AgNO3 = [Cr(H2O)5SO4] + NH3 + Ag2SO4 + H2O =>
17 Cr(H20)6 + 69(NH4)2S2O8 + 242 AgNO3 = 17[Cr(H2O)5SO4] + 380 NH3 + 121 Ag2SO4 + 641 H2O
Na2CO3 + CaSO4 + H2O = Na2SO4 + Ca(OH)2 + CO2 =>
Na2CO3 + CaSO4 + H2O = Na2SO4 + Ca(OH)2 + CO2
Pb(NO3)4 + K2CrO4 = KNO3 + Pb(CrO4)2 =>
Pb(NO3)4 + 2 K2CrO4 = 4 KNO3 + Pb(CrO4)2
KMnO4 + CuCl + HCl = KCl + MnCl2 + CuCl2 + H2O =>
KMnO4 + 5 CuCl + 8 HCl = KCl + MnCl2 + 5 CuCl2 + 4 H2O
Fe2 + AgC2H3O2 = Fe2C2H3O2 + Ag =>
Fe2 + AgC2H3O2 = Fe2C2H3O2 + Ag
C6H6OH + NaOH = C6H6NaO + H2O =>
C6H6OH + NaOH = C6H6NaO + H2O
Na2CO3 + H3PO4 = Na2HPO4 + H2O + CO2 =>
Na2CO3 + H3PO4 = Na2HPO4 + H2O + CO2
Ag3PO4 + H3PO4 = AgH2PO4 =>
Ag3PO4 + 2 H3PO4 = 3 AgH2PO4
H2O + CO2 + CaCO3 = Ca(HCO3)2 =>
H2O + CO2 + CaCO3 = Ca(HCO3)2
K2Cr2O7 + H2SO4 + C2O4H2 = Cr2(SO4)3 + K2SO4 + CO2 + H2O =>
K2Cr2O7 + 4 H2SO4 + 3 C2O4H2 = Cr2(SO4)3 + K2SO4 + 6 CO2 + 7 H2O
Ca3P2 + H2O(l) = Ca(OH)2(aq) + PH3 =>
Ca3P2 + 6 H2O(l) = 3 Ca(OH)2(aq) + 2 PH3
Pb(NO3)2 + NH4Cl = PbCl2 + NH4(NO3) =>
Pb(NO3)2 + 2 NH4Cl = PbCl2 + 2 NH4(NO3)
KCl + Cu(NO3)2 = K(NO3)2 + ClCu =>
KCl + Cu(NO3)2 = K(NO3)2 + ClCu
Mg(CN)2 + H2CO3 = MgCO3 + CNH =>
Mg(CN)2 + H2CO3 = MgCO3 + 2 CNH
Cr + H2O + O2 = Cr(OH)3 =>
4 Cr + 6 H2O + 3 O2 = 4 Cr(OH)3
K2CO3 + NH3 = KNH2 + CO2 + H2O =>
K2CO3 + 2 NH3 = 2 KNH2 + CO2 + H2O
CuS + AgNO3 = Cu(NO3)2 + Ag2S =>
CuS + 2 AgNO3 = Cu(NO3)2 + Ag2S
Fe(NO3)3 + CaSO4 = Ca(NO3)2 + Fe2(SO4)3 =>
2 Fe(NO3)3 + 3 CaSO4 = 3 Ca(NO3)2 + Fe2(SO4)3
(NH4)3PO4(aq) + CaS(aq) = (NH4)3S(aq) + CaPO4(aq) =>
(NH4)3PO4(aq) + CaS(aq) = (NH4)3S(aq) + CaPO4(aq)
H2S + Au = AuS2 + H2 =>
2 H2S + Au = AuS2 + 2 H2
Br4 = Br =>
Br4 = 4 Br
CO2 + H2O = C + HO2 =>
3 CO2 + 2 H2O = 3 C + 4 HO2
HCl + MnO2 = MnCl2 + H2O + Cl21 =>
84 HCl + 21 MnO2 = 21 MnCl2 + 42 H2O + 2 Cl21
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