| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 NH3 + 3 HgO = 3 Hg + N2 + 3 H2O
Al4C3 + KOH + H2O = KAlO2 + CH4 =>
Al4C3 + 4 KOH + 4 H2O = 4 KAlO2 + 3 CH4
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
Sn + F2 = SnF2 =>
Sn + F2 = SnF2
H2CO3 + Ni(OH)4 = Ni(CO3)2 + H2O =>
2 H2CO3 + Ni(OH)4 = Ni(CO3)2 + 4 H2O
Na2SO4 + AgC2H3O2 = Ag2SO4 + NaC2H3O2 =>
Na2SO4 + 2 AgC2H3O2 = Ag2SO4 + 2 NaC2H3O2
BaOH + AlC2H3O2 = BaC2H3O2 + AlOH =>
BaOH + AlC2H3O2 = BaC2H3O2 + AlOH
C2H4O2 + NaCl = C2H3NaO2 + HCl =>
C2H4O2 + NaCl = C2H3NaO2 + HCl
AgO2 = Ag2O4 =>
2 AgO2 = Ag2O4
CuSO4 + (NH4)2SO4 = Cu2SO4 + NH4SO4 =>
2 CuSO4 + (NH4)2SO4 = Cu2SO4 + 2 NH4SO4
Al + KOH + H2OH2SO4 = KAl(SO4)2 + H2O + H2 =>
2 Al + 2 KOH + 4 H2OH2SO4 = 2 KAl(SO4)2 + 6 H2O + 3 H2
SnCl4 + NH3 = H3Sn + NCl4 =>
SnCl4 + NH3 = H3Sn + NCl4
Be2OH2O = BeOH =>
Be2OH2O = 2 BeOH
Mg(NO3)2 + HCl = MgCl2 + HNO3 =>
Mg(NO3)2 + 2 HCl = MgCl2 + 2 HNO3
Na2SiO3 + H2O = H2SiO3 + NaOH =>
Na2SiO3 + 2 H2O = H2SiO3 + 2 NaOH
Co(OH)2 + Cl2 + NaOH = CoO(OH) + NaCl + H2O =>
2 Co(OH)2 + Cl2 + 2 NaOH = 2 CoO(OH) + 2 NaCl + 2 H2O
I2 + KClO3 + H2SO4 + H2O = HIO3 + HCl + K2SO4 =>
6 I2 + 10 KClO3 + 5 H2SO4 + 6 H2O = 12 HIO3 + 10 HCl + 5 K2SO4
SiON(s) + NF3(g) + O2(g) = SiF4(g) + NO(g) =>
3 SiON(s) + 4 NF3(g) + 2 O2(g) = 3 SiF4(g) + 7 NO(g)
FeTa2O6 + HF + O2 = H3[FeF6] + H2[TaF7] + H2O =>
4 FeTa2O6 + 80 HF + O2 = 4 H3[FeF6] + 8 H2[TaF7] + 26 H2O
FeCl3 + NaSCN = Fe2(SCN)3Cl3 + NaCl =>
2 FeCl3 + 3 NaSCN = Fe2(SCN)3Cl3 + 3 NaCl
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
SO + NaOH = Na2S2O3 + H2O =>
2 SO + 2 NaOH = Na2S2O3 + H2O
Re + KNO3 + KOH = KNO2 + KReO4 + H2O =>
2 Re + 7 KNO3 + 2 KOH = 7 KNO2 + 2 KReO4 + H2O
XC2H6 + O2 = H2O + CO2 + XHOH =>
2 XC2H6 + 7 O2 = 4 H2O + 4 CO2 + 2 XHOH
TeO3 + H2O = H2TeO4 =>
TeO3 + H2O = H2TeO4
NH4ClO4 = N2 + Cl + O + H2O =>
2 NH4ClO4 = N2 + 2 Cl + 4 O + 4 H2O
Fe(s) + CuSO4(aq) = FeSO4 + Cu =>
Fe(s) + CuSO4(aq) = FeSO4 + Cu
Li + O = Li0O =>
Li + O = Li0O
(C15H31COO)3C3H5 + O2 = C + H2O =>
2(C15H31COO)3C3H5 + 43 O2 = 102 C + 98 H2O
H2O + NaNO3 = HNO3 + Na2O =>
H2O + 2 NaNO3 = 2 HNO3 + Na2O
HCl + P2O5 = HPO3 + POCl3 =>
3 HCl + 2 P2O5 = 3 HPO3 + POCl3
CaO + SO2 = CaS + O3 =>
CaO + SO2 = CaS + O3
FeCl2 + H2O + CO2 = FeCO3 + HCl =>
FeCl2 + H2O + CO2 = FeCO3 + 2 HCl
ZnCO3 + SiO2 = ZnSiO3 + CO2 =>
ZnCO3 + SiO2 = ZnSiO3 + CO2
(NH4)3PO4 + Fe(C2H3O2)2 = Fe3(PO4)2 + C2H7NO2 =>
2(NH4)3PO4 + 3 Fe(C2H3O2)2 = Fe3(PO4)2 + 6 C2H7NO2
KF + MgBr2 = MgF2 + KBr =>
2 KF + MgBr2 = MgF2 + 2 KBr
C9H8 + KMnO4 + H2SO4 = MnSO4 + H2O + K2SO4 + C8H6O4 =>
40 C9H8 + 82 KMnO4 + 123 H2SO4 = 82 MnSO4 + 148 H2O + 41 K2SO4 + 45 C8H6O4
CH4 + ClO3 = HCl + CO2 + H2O =>
7 CH4 + 8 ClO3 = 8 HCl + 7 CO2 + 10 H2O
FeI2 + NH4PO4 = FePO4 + NH4I2 =>
FeI2 + NH4PO4 = FePO4 + NH4I2
Cu(OH)Cl + H2S = CuS + HCl + H2O =>
Cu(OH)Cl + H2S = CuS + HCl + H2O
C2H2 = CHCH =>
C2H2 = CHCH
S + B2O3 = B2 + SO3 =>
S + B2O3 = B2 + SO3
B2O3 + CrCl3 + O2 = Cr(BO2)3 + Cl2 =>
6 B2O3 + 4 CrCl3 + 3 O2 = 4 Cr(BO2)3 + 6 Cl2
C19H10Cl2N6Na2O7S2 + HO2 = CO2 + H2O + Na + S2 + N2 + Cl =>
C19H10Cl2N6Na2O7S2 + 24 HO2 = 19 CO2 + 17 H2O + 2 Na + S2 + 3 N2 + 2 Cl
N2H6 + P + H2O = PH3 + NH2OH =>
3 N2H6 + 4 P + 6 H2O = 4 PH3 + 6 NH2OH
HSO4 + C2H5OH = HS + H2O + CO2 =>
3 HSO4 + 2 C2H5OH = 3 HS + 6 H2O + 4 CO2
K2Cr2O7 + H2SO4 + C2H6O = K2Cr2(SO4)4 + H2O + C2H4O =>
K2Cr2O7 + 4 H2SO4 + 3 C2H6O = K2Cr2(SO4)4 + 7 H2O + 3 C2H4O
HPO4{3-} + H2O = H2PO4{2-} + OH{-} =>
HPO4{3-} + H2O = H2PO4{2-} + OH{-}
Al2S3(aq) + H2O(l) = Al(OH)3 + H2S =>
Al2S3(aq) + 6 H2O(l) = 2 Al(OH)3 + 3 H2S
Cr2O7 + H2O + e = Cr(OH)3 + OH{-} =>
Cr2O7 + 7 H2O + 8e = 2 Cr(OH)3 + 8 OH{-}
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