| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 NaCrO2 + 3 Br2 + 8 NaOH = 2 Na2CrO4 + 6 NaBr + 4 H2O
H2[PdCl4] + NaOH = Pd(OH)2 + H2O + NaCl =>
H2[PdCl4] + 4 NaOH = Pd(OH)2 + 2 H2O + 4 NaCl
Fe(NO3)2 + NaCl = FeCl2 + NaNO3 =>
Fe(NO3)2 + 2 NaCl = FeCl2 + 2 NaNO3
Al2(CO3)3 + KOH = Al(OH)3 + K2CO3 =>
Al2(CO3)3 + 6 KOH = 2 Al(OH)3 + 3 K2CO3
K2CrO4(aq) + Pb(NO3)2(aq) = KNO3(aq) + PbCrO4(s) =>
K2CrO4(aq) + Pb(NO3)2(aq) = 2 KNO3(aq) + PbCrO4(s)
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Cr(OH)2 + HBr = CrBr2 + H2O =>
Cr(OH)2 + 2 HBr = CrBr2 + 2 H2O
H2SO4(aq) + NaHCO3(aq) = Na2SO4(aq) + H2O(l) + CO2(g) =>
H2SO4(aq) + 2 NaHCO3(aq) = Na2SO4(aq) + 2 H2O(l) + 2 CO2(g)
Ba(OH)2 + HF = BaF2 + H2O =>
Ba(OH)2 + 2 HF = BaF2 + 2 H2O
CrCl2 + Cl2 = CrCl3 =>
2 CrCl2 + Cl2 = 2 CrCl3
Al + SO4H2 = (SO4)3Al2 + H2 =>
2 Al + 3 SO4H2 = (SO4)3Al2 + 3 H2
C6H5CONH2 + H2O = OH + C7H7N =>
C6H5CONH2 + H2O = 2 OH + C7H7N
Pb(NO3)2 + K2CO3 = KNO3 + PbO + CO2 =>
Pb(NO3)2 + K2CO3 = 2 KNO3 + PbO + CO2
Magnesium + hydrochloricacid = magnesiumchloride + H =>
Mg + 2 HCl = MgCl2 + 2 H
HNO2(aq) + SO4(aq) = H2SO4(aq) + NO2(aq) =>
2 HNO2(aq) + SO4(aq) = H2SO4(aq) + 2 NO2(aq)
Cu(OH)2 + HPO3 = Cu3(PO4)2 + H2O =>
3 Cu(OH)2 + 2 HPO3 = Cu3(PO4)2 + 4 H2O
Mg2SiO4 + CaCO3 + CO2 + H2O = Ca6Si6O17(OH)2 + Mg5(CO3)4(OH)2 =>
30 Mg2SiO4 + 30 CaCO3 + 18 CO2 + 17 H2O = 5 Ca6Si6O17(OH)2 + 12 Mg5(CO3)4(OH)2
Fe2SiO4 + H2O + SiO2 = Fe3Si4O10(OH)2 =>
3 Fe2SiO4 + 2 H2O + 5 SiO2 = 2 Fe3Si4O10(OH)2
CO2 + H2 = CH4 + H2O =>
CO2 + 4 H2 = CH4 + 2 H2O
C + HNO3 = H2CO3 + H2O + NO2 =>
C + 4 HNO3 = H2CO3 + H2O + 4 NO2
FeS2 + Na2SO7 = Fe2(SO4)3 + Na2SO4 + SO2 =>
6 FeS2 + 14 Na2SO7 = 3 Fe2(SO4)3 + 14 Na2SO4 + 3 SO2
SiCl4(l) + H2O(l) = SiO2(d) + HCl(aq) =>
SiCl4(l) + 2 H2O(l) = SiO2(d) + 4 HCl(aq)
SiH(CH3)3 + H2O = SiH(OH)3 + CH4 =>
SiH(CH3)3 + 3 H2O = SiH(OH)3 + 3 CH4
LiSO4(aq) + SrClO3(aq) = LiClO3(g) + SrSO4(s) =>
LiSO4(aq) + SrClO3(aq) = LiClO3(g) + SrSO4(s)
Mg + S = MgS =>
Mg + S = MgS
Fe2O3(s) + HCl(g) = FeCl3(s) + H2O(g) =>
Fe2O3(s) + 6 HCl(g) = 2 FeCl3(s) + 3 H2O(g)
NH3(g) + CO2(g) = H2O(l) + H4CON2(s) =>
2 NH3(g) + CO2(g) = H2O(l) + H4CON2(s)
As + NaOH = Na3AsO3 + H2 =>
2 As + 6 NaOH = 2 Na3AsO3 + 3 H2
NH4OH + H3PO4 = (NH4)3PO4 + H2O =>
3 NH4OH + H3PO4 = (NH4)3PO4 + 3 H2O
Cu + Fe2(SO4)3 = Cu(SO4)3 + Fe2 =>
Cu + Fe2(SO4)3 = Cu(SO4)3 + Fe2
Na2O2 + H2O = NaOH + O6 =>
6 Na2O2 + 6 H2O = 12 NaOH + O6
P4S3 + KClO3 = P2O3 + SO2 + KCl =>
P4S3 + 4 KClO3 = 2 P2O3 + 3 SO2 + 4 KCl
H2SO4 + Au = Au(SO4) + H2 =>
H2SO4 + Au = Au(SO4) + H2
KClO3 + KCl + H2SO4 = K2SO4 + Cl2H2O =>
KClO3 + 5 KCl + 3 H2SO4 = 3 K2SO4 + 3 Cl2H2O
K2O + H3PO4 = K3PO4 + H2O =>
3 K2O + 2 H3PO4 = 2 K3PO4 + 3 H2O
NH4OH + KCI = NH4CI + KOH =>
NH4OH + KCI = NH4CI + KOH
Cu + Ag3N = Ag3 + CuN =>
Cu + Ag3N = Ag3 + CuN
Cu(NO3)2 + Ca(OH)2 = Cu(OH)2 + Ca(NO3)2 =>
Cu(NO3)2 + Ca(OH)2 = Cu(OH)2 + Ca(NO3)2
Cu(CO3)2(aq) = CO2(g) + CuO + O2 =>
2 Cu(CO3)2(aq) = 4 CO2(g) + 2 CuO + O2
Fe + Sn(SO4)2 = Fe2SO4 + Sn =>
4 Fe + Sn(SO4)2 = 2 Fe2SO4 + Sn
C135H96O9NS + O2 = CO2 + H2O + SO2 + NH4 =>
2 C135H96O9NS + 309 O2 = 270 CO2 + 92 H2O + 2 SO2 + 2 NH4
Ba + Cl = Ba(Cl2) =>
Ba + 2 Cl = Ba(Cl2)
NH4VO3{-} + H{+} + H2SO4 = VO2{+} + NH4{+} + SO2 + H2O =>
2 NH4VO3{-} + 6 H{+} + H2SO4 = 2 VO2{+} + 2 NH4{+} + SO2 + 4 H2O
P2O5 + HCl = P2Cl2O4 + H2O =>
P2O5 + 2 HCl = P2Cl2O4 + H2O
Na2S + S8 = NaS5 =>
8 Na2S + 9 S8 = 16 NaS5
Al + CuNO3 = Al(NO3) + Cu =>
Al + CuNO3 = Al(NO3) + Cu
SO2 + Pb = PbS + O2 =>
SO2 + Pb = PbS + O2
CH3COH + KMnO4 + H2O = CH3COOH + Mn2O3 + KOH =>
4 CH3COH + 2 KMnO4 + H2O = 4 CH3COOH + Mn2O3 + 2 KOH
K2Cr2O7{2-} + C2H5OH + H2SO4 + H{+} = Cr2(SO4)3 + C2H4O2 + K2SO4 + H2O =>
K2Cr2O7{2-} + C2H5OH + 4 H2SO4 + 2 H{+} = Cr2(SO4)3 + C2H4O2 + K2SO4 + 6 H2O
MnSO4 + NaBiO3 + HNO3 = HMnO4 + Bi(NO3)3 + Na2SO4 + NaNO3 + H2O =>
2 MnSO4 + 5 NaBiO3 + 16 HNO3 = 2 HMnO4 + 5 Bi(NO3)3 + 2 Na2SO4 + NaNO3 + 7 H2O
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