| Équations équilibrées la veille | Équations équilibrées le lendemain |
HClCHCl3 = CH2Cl4
Ra + N2 = Ra2N2 =>
2 Ra + N2 = Ra2N2
Cl2O2 = ClO =>
Cl2O2 = 2 ClO
(NH4)2SO4(aq) + NaOH(aq) = NH3 + H2O + Na2SO4 =>
(NH4)2SO4(aq) + 2 NaOH(aq) = 2 NH3 + 2 H2O + Na2SO4
NaOH + HCe = NaCe + H2O =>
NaOH + HCe = NaCe + H2O
Cd + H = CdH2 =>
Cd + 2 H = CdH2
K2SO4 + Zn + H2SO4 = ZnSO4 + K2S + H2O =>
K2SO4 + 4 Zn + 4 H2SO4 = 4 ZnSO4 + K2S + 4 H2O
NaNO3 + NH4F = NaF + N2O + H2O =>
NaNO3 + NH4F = NaF + N2O + 2 H2O
NaSO + HCl = HNaSO + Cl =>
NaSO + HCl = HNaSO + Cl
Cu5FeS4 + FeS2 + H2 = CuFeS2 + CuS(H2S)2 =>
3 Cu5FeS4 + 10 FeS2 + 4 H2 = 13 CuFeS2 + 2 CuS(H2S)2
CaCl2 + HNO3 = Ca(NO3)2 + (HCl) =>
CaCl2 + 2 HNO3 = Ca(NO3)2 + 2(HCl)
NaHCO3 + CuCl2 = CuO + CO2 + H2O + NaCl =>
2 NaHCO3 + CuCl2 = CuO + 2 CO2 + H2O + 2 NaCl
NH3 + NaClO = NaOH + NCl3 =>
NH3 + 3 NaClO = 3 NaOH + NCl3
FeMg2SiO4 + H2O = Mg3Si2O5(OH)4 + Mg(OH)2 + Fe3O4 + H2 =>
6 FeMg2SiO4 + 17 H2O = 3 Mg3Si2O5(OH)4 + 3 Mg(OH)2 + 2 Fe3O4 + 8 H2
Sr(OH)2 + NH4Cl = NH3(OH) + SrCl2 + H2 =>
Sr(OH)2 + 2 NH4Cl = 2 NH3(OH) + SrCl2 + H2
Cl2 + K4[Fe(CN)6] = K3[Fe(CN)6] + KCl =>
Cl2 + 2 K4[Fe(CN)6] = 2 K3[Fe(CN)6] + 2 KCl
C8H10O + CrO3 + H2SO4 = C8H8O + Cr2(S04)3 + H2O =>
42 C8H10O + 2 CrO3 + 12 H2SO4 = 42 C8H8O + Cr2(S04)3 + 54 H2O
Pb(C2H3O2)2 + Ba(NO3)2 = Pb(NO3)2 + Ba(C2H3O2)2 =>
Pb(C2H3O2)2 + Ba(NO3)2 = Pb(NO3)2 + Ba(C2H3O2)2
MgH2 + NH3 = Mg3N2 + H2 =>
3 MgH2 + 2 NH3 = Mg3N2 + 6 H2
NaCl + HNO3 = NaNO3 + H2 + Cl2 =>
2 NaCl + 2 HNO3 = 2 NaNO3 + H2 + Cl2
Hg2(SCN)2 = Hg(SCN)2Hg =>
Hg2(SCN)2 = Hg(SCN)2Hg
OH{-} + [Cr(OH)6]{3-} + PbO2 = CrO4{2-} + [Pb(OH)4]{2-} + H2O =>
4 OH{-} + 2[Cr(OH)6]{3-} + 3 PbO2 = 2 CrO4{2-} + 3[Pb(OH)4]{2-} + 2 H2O
Ca + H3PO3 = CaPO3 + H2 =>
2 Ca + 2 H3PO3 = 2 CaPO3 + 3 H2
NaSO4 + NaClO4 + NaI + H2O = SCl2 + NaOH + I2 =>
2 NaSO4 + 4 NaClO4 + 42 NaI + 24 H2O = 2 SCl2 + 48 NaOH + 21 I2
C4H10 + O2(g) = CO2(g) + H2O(g) =>
2 C4H10 + 13 O2(g) = 8 CO2(g) + 10 H2O(g)
Cr2O7{-2} + H2SO3 + H{+} = Cr{+3} + SO4{-2} + H2O =>
Cr2O7{-2} + 3 H2SO3 + 2 H{+} = 2 Cr{+3} + 3 SO4{-2} + 4 H2O
Cs2CO3 + Ta2O5 = CsTaO3 + CO2 =>
Cs2CO3 + Ta2O5 = 2 CsTaO3 + CO2
Ni(s) + O2(g) = NiO2 =>
Ni(s) + O2(g) = NiO2
Na3[Cr(OH)6] + HI = Cr(OH)3 + NaI + H2O =>
Na3[Cr(OH)6] + 3 HI = Cr(OH)3 + 3 NaI + 3 H2O
SeO2 + NaOH = Se(OH)4 + Na2O =>
SeO2 + 4 NaOH = Se(OH)4 + 2 Na2O
[Cu(NH3)2](OH) + NH4OH + O2 = Cu(NH3)4(OH)2 + H2O =>
4[Cu(NH3)2](OH) + 8 NH4OH + O2 = 4 Cu(NH3)4(OH)2 + 6 H2O
Al + Fe2O3 = Al2O3 + Fe =>
2 Al + Fe2O3 = Al2O3 + 2 Fe
O2 + FeSiO3 + H2O = FeO(OH) + SiO2 =>
O2 + 4 FeSiO3 + 2 H2O = 4 FeO(OH) + 4 SiO2
Zn(NO3)2 + K2CO3 = ZnCO3 + K2(NO3)2 =>
Zn(NO3)2 + K2CO3 = ZnCO3 + K2(NO3)2
KMnO4 + Zn + H2SO4 = KHSO4 + MnSO4 + ZnSO4 + H2O =>
2 KMnO4 + 5 Zn + 9 H2SO4 = 2 KHSO4 + 2 MnSO4 + 5 ZnSO4 + 8 H2O
CuCl2 + NH3 + H2O = Cu(NH3)4(H2O) + NH4Cl + OH =>
CuCl2 + 6 NH3 + 3 H2O = Cu(NH3)4(H2O) + 2 NH4Cl + 2 OH
CuCl2NH4OH = CuOHNH4Cl2 =>
CuCl2NH4OH = CuOHNH4Cl2
NaMnO4 + Zn + H2O = MnO2 + Zn(OH)2 + NaO =>
NaMnO4 + Zn + H2O = MnO2 + Zn(OH)2 + NaO
CH3CH2CH2CH2OH = CH3CH2OCH2CH2CH3 + H2O =>
5 CH3CH2CH2CH2OH = 4 CH3CH2OCH2CH2CH3 + H2O
Ca(ClO3)2 + H2SO4 = H2(ClO3) + Ca(SO4)2 =>
Ca(ClO3)2 + 2 H2SO4 = 2 H2(ClO3) + Ca(SO4)2
C7H6O2 + CH4 = C8H8O + H2O =>
C7H6O2 + CH4 = C8H8O + H2O
KMnO4 + C3H5ClO = K2CO3 + MnO2 + CO2 + H2O + Cl =>
10 KMnO4 + 2 C3H5ClO = 5 K2CO3 + 10 MnO2 + CO2 + 5 H2O + 2 Cl
NaH + CO2 = Na2O + CH4 =>
4 NaH + CO2 = 2 Na2O + CH4
NaBH4(s) + I2(s) = B2H6(g) + NaI(s) + H2(g) =>
2 NaBH4(s) + I2(s) = B2H6(g) + 2 NaI(s) + H2(g)
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Mg + FePO4 = Mg(PO4)2 + Fe =>
Mg + 2 FePO4 = Mg(PO4)2 + 2 Fe
CuCl2 + KCN = K2Cu(CN)3 + CN + KCl =>
CuCl2 + 4 KCN = K2Cu(CN)3 + CN + 2 KCl
C2S + O2 = CO2 + S2O =>
4 C2S + 9 O2 = 8 CO2 + 2 S2O
Ce(OH)3 + CO2 = H2O + Ce2(CO3)3 =>
2 Ce(OH)3 + 3 CO2 = 3 H2O + Ce2(CO3)3
Al2 + Se = Al2Se3 =>
Al2 + 3 Se = Al2Se3
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Équations équilibrées sur12/20/23
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