| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
L = L2 =>
2 L = L2
NaOH + Br2 = NaBrO3 + NaBr + H2O =>
6 NaOH + 3 Br2 = NaBrO3 + 5 NaBr + 3 H2O
Na2HCO3 + HC2H3O2 = CO2 + H2O + NaCH3CO2 =>
8 Na2HCO3 + 15 HC2H3O2 = 6 CO2 + 10 H2O + 16 NaCH3CO2
C4H4(g) + O2(g) = CO2(g) + H2O(l) =>
C4H4(g) + 5 O2(g) = 4 CO2(g) + 2 H2O(l)
Mg(NO3)2 + Na3PO4 = NaNO3 + Mg3(PO4)2 =>
3 Mg(NO3)2 + 2 Na3PO4 = 6 NaNO3 + Mg3(PO4)2
Na2SO4 + BaNO32 = BaSO4 + Na2NO32 =>
Na2SO4 + BaNO32 = BaSO4 + Na2NO32
NaHSO4Ba(OH)2 = BaSO4NaOHH2O =>
NaHSO4Ba(OH)2 = BaSO4NaOHH2O
HCl + H2O2 = Cl + H2O =>
2 HCl + H2O2 = 2 Cl + 2 H2O
NaI + Pb(SO2)2 = Na2(SO2) + PbI4 =>
4 NaI + Pb(SO2)2 = 2 Na2(SO2) + PbI4
SiO2 + ZnS = SO2 + ZnSi =>
SiO2 + ZnS = SO2 + ZnSi
Fe(OH)3 + H2SO4 = Fe(HSO4)3 + H2O =>
Fe(OH)3 + 3 H2SO4 = Fe(HSO4)3 + 3 H2O
C2H4O + H2 = C4H6 + H2O =>
2 C2H4O + H2 = C4H6 + 2 H2O
U3Si2 + UN = Si3N4 + U =>
3 U3Si2 + 8 UN = 2 Si3N4 + 17 U
Al(s) + NiCl2(aq) = AlCl3(aq) + Ni(s) =>
2 Al(s) + 3 NiCl2(aq) = 2 AlCl3(aq) + 3 Ni(s)
PCl3 = P2 + PCl5 =>
5 PCl3 = P2 + 3 PCl5
C4H9Br + Zn + HCl = C3H8 + ZnBr + CH3Cl =>
2 C4H9Br + 2 Zn + 5 HCl = C3H8 + 2 ZnBr + 5 CH3Cl
Cr(SiO3)3 + Li3(PO4) = Cr(PO4)2 + Li2(SiO3) =>
Cr(SiO3)3 + 2 Li3(PO4) = Cr(PO4)2 + 3 Li2(SiO3)
C10H20 + O2 = CO + H2O =>
C10H20 + 10 O2 = 10 CO + 10 H2O
SnCl2 + HCl = HSnCl3 =>
SnCl2 + HCl = HSnCl3
Ag2SO3 + H2S = Ag2S + H2SO3 =>
Ag2SO3 + H2S = Ag2S + H2SO3
CsBr + Co(OH)2 = CsOH + CoBr2 =>
2 CsBr + Co(OH)2 = 2 CsOH + CoBr2
MgCO3 + H = MgH + CO3 =>
MgCO3 + H = MgH + CO3
Li + Mg = Li2Mg =>
2 Li + Mg = Li2Mg
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
(NH4)2PdCl6 + NH3 = Pd(NH3)4Cl2 + H + Cl2 =>
(NH4)2PdCl6 + 2 NH3 = Pd(NH3)4Cl2 + 2 H + 2 Cl2
KMnO4 + KOH + NaSO3 = K2MnO4 + NaSO4 + H2O =>
2 KMnO4 + 2 KOH + NaSO3 = 2 K2MnO4 + NaSO4 + H2O
NaI(l) + Cl2(l) = NaCl + I2 =>
2 NaI(l) + Cl2(l) = 2 NaCl + I2
HCIO3 + H2S = H2SO4 + HCI =>
4 HCIO3 + 3 H2S = 3 H2SO4 + 4 HCI
Cd(OH)2 + NH3 = [Cd(NH3)4](OH)2 =>
Cd(OH)2 + 4 NH3 = [Cd(NH3)4](OH)2
BaCl2 + H2O2 = BaO + Cl2 + H2O =>
BaCl2 + H2O2 = BaO + Cl2 + H2O
Na(CO3)2 + CaOH1 = NaOH1 + Ca(CO3)2 =>
Na(CO3)2 + CaOH1 = NaOH1 + Ca(CO3)2
CuSO4 + Na2SiO3 = Na2SO4 + CuSiO3 =>
CuSO4 + Na2SiO3 = Na2SO4 + CuSiO3
HCl + Ca = CaCl2 + H2 =>
2 HCl + Ca = CaCl2 + H2
K4[Fe(CN)6] + FeSO4 = Fe4[Fe(CN)6]3 + K2Fe2[Fe(CN)6] + K2SO4 =>
5 K4[Fe(CN)6] + 8 FeSO4 = Fe4[Fe(CN)6]3 + 2 K2Fe2[Fe(CN)6] + 8 K2SO4
Na2HPO3 + NaOH = H3PO3 + Na + O2 =>
Na2HPO3 + 2 NaOH = H3PO3 + 4 Na + O2
AI + Br2 = AIBr3 =>
2 AI + 3 Br2 = 2 AIBr3
NaClO3 + MnO2 + NaOH = Na2HMnO4 + NaCl + H2O =>
NaClO3 + 6 MnO2 + 12 NaOH = 6 Na2HMnO4 + NaCl + 3 H2O
Na + NaNO3 = Na2O + N2 =>
10 Na + 2 NaNO3 = 6 Na2O + N2
HF + MgCO3 = MgF2 + H2O + CO2 =>
2 HF + MgCO3 = MgF2 + H2O + CO2
MnSO4 + KOH + Br2 = K2MnO4 + KBr + H2O + K2SO4 =>
MnSO4 + 8 KOH + 2 Br2 = K2MnO4 + 4 KBr + 4 H2O + K2SO4
HNO3 + FeS = Fe(NO3)2 + H2SO4 + NO + H2O =>
14 HNO3 + 3 FeS = 3 Fe(NO3)2 + 3 H2SO4 + 8 NO + 4 H2O
CH3CH2CH2CH2MgBr + COHCHCH3CH3 + H30 = CH3CH2CH2CH2CHOHCHCH3CH3 + MgBr =>
30 CH3CH2CH2CH2MgBr + 30 COHCHCH3CH3 + H30 = 30 CH3CH2CH2CH2CHOHCHCH3CH3 + 30 MgBr
CH2CHCOOK + HCl = KCl + CH2ClCH2COOH =>
CH2CHCOOK + 2 HCl = KCl + CH2ClCH2COOH
Ca + No2 = Ca(No2)2 =>
Ca + 2 No2 = Ca(No2)2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
H2O + H2SO4 = H2OSO4 + H2 =>
H2O + H2SO4 = H2OSO4 + H2
CuI + Na2SO3S = Na3[Cu(SO3S)2] + NaI =>
CuI + 2 Na2SO3S = Na3[Cu(SO3S)2] + NaI
NaCl(aq) + KSCN(aq) = NaCN(aq) + KSCl(s) =>
NaCl(aq) + KSCN(aq) = NaCN(aq) + KSCl(s)
H2O + MnO4{-} + S{-} = MnS + S + OH{-} =>
4 H2O + MnO4{-} + 7 S{-} = MnS + 6 S + 8 OH{-}
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