| Équations équilibrées la veille | Équations équilibrées le lendemain |
K2Cr2O7 + 6 KBr + 4 H2SO4 = 4 K2SO4 + 2 Cr(OH)3 + 3 Br2 + H2O
NaCl + HNO3 = NaNO3 + Cl2 + NO + H2O =>
6 NaCl + 8 HNO3 = 6 NaNO3 + 3 Cl2 + 2 NO + 4 H2O
I{-} + H{+} + Cr2O72{-}� = I2 + Cr3{+} + H2O =>
854 I{-} + 864 H{+} + 6 Cr2O72{-}� = 427 I2 + 4 Cr3{+} + 432 H2O
Me2O3 + HCl = MeCl3 + H2O =>
Me2O3 + 6 HCl = 2 MeCl3 + 3 H2O
Br + KI = KBr2 + I2 =>
4 Br + 2 KI = 2 KBr2 + I2
NaHCO3 + HCH3OO = NaCH3OO + H2O + CO2 =>
NaHCO3 + HCH3OO = NaCH3OO + H2O + CO2
Fe + O2 + H2O = FeO3H2O =>
2 Fe + 3 O2 + 2 H2O = 2 FeO3H2O
C6H12O6 = C2H5OH + CO2 =>
C6H12O6 = 2 C2H5OH + 2 CO2
CH3CHCH3CH2CHO + Ag(NH3)2OH = CH3CHCH3CH2COONH4 + Ag + NH3 + H2O =>
CH3CHCH3CH2CHO + 2 Ag(NH3)2OH = CH3CHCH3CH2COONH4 + 2 Ag + 3 NH3 + H2O
KMnO4 + NaNO2 + KOH = K2MnO4 + NaNO3 + H2O =>
2 KMnO4 + NaNO2 + 2 KOH = 2 K2MnO4 + NaNO3 + H2O
CuCN + NaCN = NaCu(CN)2 =>
CuCN + NaCN = NaCu(CN)2
Zn(s) + HNO3(aq) = Zn(NO3)2(aq) + N2O(g) + H2O(l) =>
4 Zn(s) + 10 HNO3(aq) = 4 Zn(NO3)2(aq) + N2O(g) + 5 H2O(l)
Fe + (OH)2 = FeO + H2O =>
Fe + (OH)2 = FeO + H2O
Li3PO4 + H2O = Li2HPO4 + LiOH =>
Li3PO4 + H2O = Li2HPO4 + LiOH
SO2 + CaCO3 + O2 + H2O = CaSO4*2H2O + CO2 =>
2 SO2 + 2 CaCO3 + O2 + 4 H2O = 2 CaSO4*2H2O + 2 CO2
C2H5COONa + H2O = C4H10 + CO2 + NaOH =>
13 C2H5COONa + 9 H2O = 7 C4H10 + 11 CO2 + 13 NaOH
H2SO4 + Mg = MgSO4 + H2O + SO =>
3 H2SO4 + 2 Mg = 2 MgSO4 + 3 H2O + SO
N + Cl2 = NCl =>
2 N + Cl2 = 2 NCl
CN4H8 + S2 = NHS + CS2 + SH2 =>
CN4H8 + 4 S2 = 4 NHS + CS2 + 2 SH2
Mg + H2SO4 = H2 + MgSO4 =>
Mg + H2SO4 = H2 + MgSO4
C2H2 + H2 = C2H6 =>
C2H2 + 2 H2 = C2H6
PH3 + HClO3 = HCl + H3PO4 =>
3 PH3 + 4 HClO3 = 4 HCl + 3 H3PO4
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
CrCl3 + Na2CO3 = Cr2(CO3)3 + NaCl =>
2 CrCl3 + 3 Na2CO3 = Cr2(CO3)3 + 6 NaCl
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
H2SO4 + Na2B4O7 + H2O = H3BO3 + Na2SO4 =>
H2SO4 + Na2B4O7 + 5 H2O = 4 H3BO3 + Na2SO4
CH3CHO + [Cu(NH3)4](OH)2 = CH3COONH4 + Cu2O + NH3 + H2O =>
CH3CHO + 2[Cu(NH3)4](OH)2 = CH3COONH4 + Cu2O + 7 NH3 + 2 H2O
CuBr2 + Na2SO3 + H2O = CuBr + Na2SO4 + HBr =>
2 CuBr2 + Na2SO3 + H2O = 2 CuBr + Na2SO4 + 2 HBr
C2H4O3 + KOH = C2K2H2O3 + H2O =>
C2H4O3 + 2 KOH = C2K2H2O3 + 2 H2O
NH4Br + HCl = HBr + ClNH4 =>
NH4Br + HCl = HBr + ClNH4
CaCO3 + K = CaCO3K =>
CaCO3 + K = CaCO3K
K2Cr2O7 + K2SO3 + HCl = CrCl3 + K2SO4 + H2O + KCl =>
K2Cr2O7 + 3 K2SO3 + 8 HCl = 2 CrCl3 + 3 K2SO4 + 4 H2O + 2 KCl
CrO4 + H2O + e = Cr(OH)3 + OH{-} =>
CrO4 + 4 H2O + 5e = Cr(OH)3 + 5 OH{-}
Hg + MgSO4(aq) = HgSO4(aq) + Mg(s) =>
Hg + MgSO4(aq) = HgSO4(aq) + Mg(s)
P4(s) + O2(s) = P2O5(s) =>
P4(s) + 5 O2(s) = 2 P2O5(s)
K2Se + KClO + H2SO4 = K2SO4 + Cl2 + H2O + K2SeO4 =>
K2Se + 8 KClO + 4 H2SO4 = 4 K2SO4 + 4 Cl2 + 4 H2O + K2SeO4
NaSO4 + Zn = ZnSO4 + Na =>
NaSO4 + Zn = ZnSO4 + Na
Ca(C2H2O2)2 + KNO3 = Ca(NO3)2 + K(C2H2O2) =>
Ca(C2H2O2)2 + 2 KNO3 = Ca(NO3)2 + 2 K(C2H2O2)
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
(CH2)6N4 + HCl = (CH2)6N4*HCl =>
(CH2)6N4 + HCl = (CH2)6N4*HCl
HSO4{-} + H2O = H2SO4 + OH{-} =>
HSO4{-} + H2O = H2SO4 + OH{-}
Zn + CuClO = Cu + ZnClO =>
Zn + CuClO = Cu + ZnClO
CrCl3*6H2O + NaOH = CrOH + NaCl3 + H2O =>
CrCl3*6H2O + NaOH = CrOH + NaCl3 + 6 H2O
CaMgSi2O6 + CaCO3 = Ca3Si2O7 + CO2 + Mg2SiO4 =>
4 CaMgSi2O6 + 5 CaCO3 = 3 Ca3Si2O7 + 5 CO2 + 2 Mg2SiO4
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Cr2 = Cr =>
Cr2 = 2 Cr
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
CaCl2(aq) + CO2(g) + H2O(l) = CaCO3(s) + HCl(aq) =>
CaCl2(aq) + CO2(g) + H2O(l) = CaCO3(s) + 2 HCl(aq)
C2H4 + CI2 = C2H2CI + H2CI =>
2 C2H4 + 2 CI2 = C2H2CI + 3 H2CI
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Équations équilibrées sur12/10/24
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