| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 Al + 3 PbO2 = 2 Al2O3 + 3 Pb
SnSO4 + NaCl = Na2SO4 + SnCl2 =>
SnSO4 + 2 NaCl = Na2SO4 + SnCl2
KI + K2(CrO4) + H2SO4 = I2 + Cr2(SO4)3 + K2(SO4) + H2O =>
6 KI + 2 K2(CrO4) + 8 H2SO4 = 3 I2 + Cr2(SO4)3 + 5 K2(SO4) + 8 H2O
RbOH + H2SO4 = Rb2SO4 + H2O =>
2 RbOH + H2SO4 = Rb2SO4 + 2 H2O
C6H10 + KMnO4 + H2O = C6H10O4 + KOH + MnO2 =>
3 C6H10 + 8 KMnO4 + 4 H2O = 3 C6H10O4 + 8 KOH + 8 MnO2
(C3)(H8) + (O2) = (CO2) + (H2)O =>
(C3)(H8) + 5(O2) = 3(CO2) + 4(H2)O
K3PO4 + Ca(NO3)2 = Ca3(PO4)2 + KNO3 =>
2 K3PO4 + 3 Ca(NO3)2 = Ca3(PO4)2 + 6 KNO3
Ce(SO4)2 + Na2SO3 + H2O = Ce2(SO4)3 + Na2SO4 + H2SO4 =>
2 Ce(SO4)2 + Na2SO3 + H2O = Ce2(SO4)3 + Na2SO4 + H2SO4
CH3CHO + Br2 = CHBrCHBr + H2O =>
CH3CHO + Br2 = CHBrCHBr + H2O
Na2CO3 + H = Na + H2CO3 =>
Na2CO3 + 2 H = 2 Na + H2CO3
K3PO4(ag) + MgCl2(ag) = Mg3(PO4)2(s) + KCl(ag) =>
2 K3PO4(ag) + 3 MgCl2(ag) = Mg3(PO4)2(s) + 6 KCl(ag)
PCl5(s) + H2O(l) = H3PO4(aq) + HCl(aq) =>
PCl5(s) + 4 H2O(l) = H3PO4(aq) + 5 HCl(aq)
NH2CH2COOH + O2 = H2NCONH2 + CO2 + H2O =>
2 NH2CH2COOH + 3 O2 = H2NCONH2 + 3 CO2 + 3 H2O
AuCl4{-} + Fe{+} = Au + Fe{3+} + Cl{-} =>
2 AuCl4{-} + 3 Fe{+} = 2 Au + 3 Fe{3+} + 8 Cl{-}
Ba + N2 = Ba3N4 =>
3 Ba + 2 N2 = Ba3N4
Sb2S3 + H2SO4 = Sb2O3 + SO2 + H2O =>
Sb2S3 + 9 H2SO4 = Sb2O3 + 12 SO2 + 9 H2O
NaCl + Ag2(NO3)3 = AgCl3 + Na2(NO3) =>
6 NaCl + Ag2(NO3)3 = 2 AgCl3 + 3 Na2(NO3)
C6H17 + O = CO2 + H2O =>
2 C6H17 + 41 O = 12 CO2 + 17 H2O
NH4OH(aq) + Mg(NO3)2(aq) = Mg(OH)2(s) + NH4NO3(aq) =>
2 NH4OH(aq) + Mg(NO3)2(aq) = Mg(OH)2(s) + 2 NH4NO3(aq)
Zn(NO3)2 + AgClO4 = Zn(ClO4)2 + Ag(NO3) =>
Zn(NO3)2 + 2 AgClO4 = Zn(ClO4)2 + 2 Ag(NO3)
Na2[Pb(OH)4] + HCl = NaCl + Pb(OH)2 + H2O =>
Na2[Pb(OH)4] + 2 HCl = 2 NaCl + Pb(OH)2 + 2 H2O
CaCO3 + C4H6O4 = CaC4H5O4 + H2O + CO2 =>
14 CaCO3 + 15 C4H6O4 = 14 CaC4H5O4 + 10 H2O + 18 CO2
H2O4C2 + NaOH = Na2O4C2 + H2O =>
H2O4C2 + 2 NaOH = Na2O4C2 + 2 H2O
KNO2 + KI + CH3COOH = I2 + NO + CH3COOK + H2O =>
2 KNO2 + 2 KI + 4 CH3COOH = I2 + 2 NO + 4 CH3COOK + 2 H2O
Co(ClO4)3 = Co + ClO4 =>
Co(ClO4)3 = Co + 3 ClO4
MgSO3 + SO2 = MgSO2 + SO3 =>
MgSO3 + SO2 = MgSO2 + SO3
H2SeO3 + SO2 + H2O = Se + H2SO4 =>
H2SeO3 + 2 SO2 + H2O = Se + 2 H2SO4
Zn(No3)2 + AlI3 = ZnI3 + Al(No3)2 =>
Zn(No3)2 + AlI3 = ZnI3 + Al(No3)2
PCl5 + CH3COOH = (CH3CO)2O + HCl + H3PO4 =>
PCl5 + 8 CH3COOH = 4(CH3CO)2O + 5 HCl + H3PO4
C2H2 + H2O = HOCH2CH2OH =>
C2H2 + 2 H2O = HOCH2CH2OH
NaF + Al(OH)3 + H2SO4 = Na3AlF6 + Na2SO4 + H2O =>
12 NaF + 2 Al(OH)3 + 3 H2SO4 = 2 Na3AlF6 + 3 Na2SO4 + 6 H2O
Na2CO3(aq) + CoCl2(aq) = NaCl(aq) + CoCO3(s) =>
Na2CO3(aq) + CoCl2(aq) = 2 NaCl(aq) + CoCO3(s)
CH3OH + CrO7{2-} + H{+} = CH2O + Cr{3+} + H2O =>
9 CH3OH + 2 CrO7{2-} + 10 H{+} = 9 CH2O + 2 Cr{3+} + 14 H2O
(NH4)2SO4(aq) + Na2CO3(aq) = (NH4)2CO3 + Na2SO4 =>
(NH4)2SO4(aq) + Na2CO3(aq) = (NH4)2CO3 + Na2SO4
NH4ClO3 + CuO + NH3*3H2O = [Cu(NH3)4](ClO3)2 + H2O =>
2 NH4ClO3 + CuO + 2 NH3*3H2O = [Cu(NH3)4](ClO3)2 + 7 H2O
Cr + KOH + H2O = KCr(OH)4 + H2 =>
2 Cr + 2 KOH + 6 H2O = 2 KCr(OH)4 + 3 H2
KCl + H2O = K2O + HCl =>
2 KCl + H2O = K2O + 2 HCl
NiCO3(aq) + Fe(s) = FeCO3(aq) + Ni(s) =>
NiCO3(aq) + Fe(s) = FeCO3(aq) + Ni(s)
C9H8O2 + HBr + H2O2 = C9H8O2Br2 + H2O =>
C9H8O2 + 2 HBr + H2O2 = C9H8O2Br2 + 2 H2O
Cu2O + Cr2O3 = CuCrO2 =>
Cu2O + Cr2O3 = 2 CuCrO2
Pb2O4 + NaOH = Pb(OH)4 + Na2O =>
Pb2O4 + 8 NaOH = 2 Pb(OH)4 + 4 Na2O
Na3AsO4 + AgNO3 = Ag3AsO4 + NaNO3 =>
Na3AsO4 + 3 AgNO3 = Ag3AsO4 + 3 NaNO3
H2 + CO2 = H2O + C =>
2 H2 + CO2 = 2 H2O + C
H + Cl + O = HClO =>
H + Cl + O = HClO
CaO + Na = Na2O + Ca =>
CaO + 2 Na = Na2O + Ca
CdBr2 + Na2SO3 = CdSO3 + Na2Br2 =>
CdBr2 + Na2SO3 = CdSO3 + Na2Br2
Au + HNO3 + HCl = H{+} + AuCl4{-} + NO2 + H2O =>
Au + 3 HNO3 + 4 HCl = H{+} + AuCl4{-} + 3 NO2 + 3 H2O
MgCl + NaOH = MgOH + ClNa =>
MgCl + NaOH = MgOH + ClNa
H2SO3 + Pb(OH)4 = Pb2(SO3)4 + H2O =>
4 H2SO3 + 2 Pb(OH)4 = Pb2(SO3)4 + 8 H2O
NO3 + Al = Al(NO3) =>
NO3 + Al = Al(NO3)
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