| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 Cr(OH)3 + 3 H2C2O4 = Cr2(C2O4)3 + 6 H2O
CrO3KOH = CrOHKO3 =>
CrO3KOH = CrOHKO3
Na2SO3(aq)S(s) = Na2S2O3(s) =>
Na2SO3(aq)S(s) = Na2S2O3(s)
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
NaBO3 + K2S + H2SO4 = S + H3BO3 + Na2SO4 + K2SO4 =>
2 NaBO3 + 2 K2S + 3 H2SO4 = 2 S + 2 H3BO3 + Na2SO4 + 2 K2SO4
Ag2CrO4 + NH4OH = [Ag(NH3)2]2CrO4 + H2O =>
Ag2CrO4 + 4 NH4OH = [Ag(NH3)2]2CrO4 + 4 H2O
K + C3H8O = C3H7KO + H2 =>
2 K + 2 C3H8O = 2 C3H7KO + H2
ZnO + HBr = ZnBr2 + H2O =>
ZnO + 2 HBr = ZnBr2 + H2O
FeCl2(s) + HCl(aq) + H2O2(aq) = FeCl3(s) + H2O(l) =>
2 FeCl2(s) + 2 HCl(aq) + H2O2(aq) = 2 FeCl3(s) + 2 H2O(l)
Fe2{+} + MnO4 + H = Fe3{+} + Mn2{+} + H2O =>
3 Fe2{+} + 2 MnO4 + 16 H = 2 Fe3{+} + Mn2{+} + 8 H2O
NaCl(s) + H2O(l) = NaOH(aq) + HCl(l) =>
NaCl(s) + H2O(l) = NaOH(aq) + HCl(l)
FeSO4 + H2SO4 + K2CrO7 = Fe2(SO4)3 + Cr2(SO4)3 + H2O + K2SO4 =>
18 FeSO4 + 14 H2SO4 + 2 K2CrO7 = 9 Fe2(SO4)3 + Cr2(SO4)3 + 14 H2O + 2 K2SO4
CaCl3 + Na3PO4 = Ca2(PO4)2 + NaCl =>
2 CaCl3 + 2 Na3PO4 = Ca2(PO4)2 + 6 NaCl
CoSO4 + K3[Fe(CN)6] = CoKFe(CN)6 + K2SO4 =>
CoSO4 + K3[Fe(CN)6] = CoKFe(CN)6 + K2SO4
CrCl2 + Na2Cr2O7 + HCl = CrCl3 + NaCl + H2O =>
6 CrCl2 + Na2Cr2O7 + 14 HCl = 8 CrCl3 + 2 NaCl + 7 H2O
NiCO3 + H2O = Ni3O4(H2O)2 + CO2 + H3O =>
3 NiCO3 + 5 H2O = Ni3O4(H2O)2 + 3 CO2 + 2 H3O
CaSO4H2O = CaOH2SO4 =>
CaSO4H2O = CaOH2SO4
CH2O + K2CO3 = H2O + CO2 + C4H6O4K =>
15 CH2O + 2 K2CO3 = 3 H2O + CO2 + 4 C4H6O4K
CH3NH2 + CuO = N2 + Cu + H2O + CH4 =>
2 CH3NH2 + CuO = N2 + Cu + H2O + 2 CH4
NH3 + NaOCl + NaOH = NaNO3 + NaCl + H2O =>
NH3 + 4 NaOCl + NaOH = NaNO3 + 4 NaCl + 2 H2O
Fe + H3PO4 = Fe(H2PO4)3 + H2 =>
2 Fe + 6 H3PO4 = 2 Fe(H2PO4)3 + 3 H2
P + HNO3 + H2O = H4PO4 + NO =>
3 P + 4 HNO3 + 4 H2O = 3 H4PO4 + 4 NO
B2O3 + P = B + P4O10 =>
10 B2O3 + 12 P = 20 B + 3 P4O10
Al2(SO4)3 + BrCl = Al2Cl3 + BrSO4 =>
Al2(SO4)3 + 3 BrCl = Al2Cl3 + 3 BrSO4
Fe2{+} + VO2{+} + H{+} = Fe{2+} + VO{2+} + H2O =>
Fe2{+} + 3 VO2{+} + 6 H{+} = 2 Fe{2+} + 3 VO{2+} + 3 H2O
C14H14O(l) + O2(g) = CO2(g) + H2O(l) =>
C14H14O(l) + 17 O2(g) = 14 CO2(g) + 7 H2O(l)
HgCl + Ca(OH)2 = HgO + CaCl2 + H2 =>
2 HgCl + Ca(OH)2 = 2 HgO + CaCl2 + H2
CaSO4H2O = CaSO4*H2O =>
CaSO4H2O = CaSO4*H2O
Rb + RbNO3 = Rb2O + N2 =>
10 Rb + 2 RbNO3 = 6 Rb2O + N2
FeCl3 + Nh4SCN = Fe(SCN)3 + Nh4Cl =>
FeCl3 + 3 Nh4SCN = Fe(SCN)3 + 3 Nh4Cl
Zn(s) + HCl(aq) = ZnCl(aq) + H2(g) =>
2 Zn(s) + 2 HCl(aq) = 2 ZnCl(aq) + H2(g)
CaSO4H2O = (CaSO4)H2O =>
CaSO4H2O = (CaSO4)H2O
Au + PtBr2 = Pt + AuBr2 =>
Au + PtBr2 = Pt + AuBr2
CH3CH2SH + NaOH = CH3CH2S + Na + H2O =>
CH3CH2SH + NaOH = CH3CH2S + Na + H2O
H2SiF6 + Al(OH)3 = AlF3 + SiO2 + H2O =>
H2SiF6 + 2 Al(OH)3 = 2 AlF3 + SiO2 + 4 H2O
H2SiF6 + MgO = MgSiF6 + H2O =>
H2SiF6 + MgO = MgSiF6 + H2O
Rb + RbNO3 = Rb2O + N2 =>
10 Rb + 2 RbNO3 = 6 Rb2O + N2
I2 + K2Cr2O7 + HCl = KIO3 + CrCl3 + KCl + H2O =>
3 I2 + 5 K2Cr2O7 + 34 HCl = 6 KIO3 + 10 CrCl3 + 4 KCl + 17 H2O
SiO2 + Li2CO3 + SrCO3 = CO2 + SrLi2SiO4 =>
SiO2 + Li2CO3 + SrCO3 = 2 CO2 + SrLi2SiO4
CdCl2 + Na3PO4 = Cd3(PO4)2 + NaCl =>
3 CdCl2 + 2 Na3PO4 = Cd3(PO4)2 + 6 NaCl
H2SO4 + Pb = H2O + PbSO4 + SO2 =>
2 H2SO4 + Pb = 2 H2O + PbSO4 + SO2
PbCrO4 + CH3COOH = Pb{2+} + Cr2O7{2-} + CH3COO{-} + H2O =>
2 PbCrO4 + 2 CH3COOH = 2 Pb{2+} + Cr2O7{2-} + 2 CH3COO{-} + H2O
Cu2S + HNO3 = Cu(NO3)2 + SO2 + NO2 + H2O =>
Cu2S + 12 HNO3 = 2 Cu(NO3)2 + SO2 + 8 NO2 + 6 H2O
C3H802 + CuO = C2H5CHO + Cu + H2O =>
C3H802 + 399 CuO = C2H5CHO + 399 Cu + 398 H2O
C3H6O + H2S = C3H6S + H2O =>
C3H6O + H2S = C3H6S + H2O
FeSO4 + Mg = MgSO4 + Fe =>
FeSO4 + Mg = MgSO4 + Fe
FeCl3 + NH4SCN + HF = NH4Cl + (NH4)3[FeF6] + HSCN =>
FeCl3 + 6 NH4SCN + 6 HF = 3 NH4Cl + (NH4)3[FeF6] + 6 HSCN
H2SiF6CaCO3 = CaSiF6H2OCO2 =>
H2SiF6CaCO3 = CaSiF6H2OCO2
BaBr2 + AlF3 = AlBr3 + BaF2 =>
3 BaBr2 + 2 AlF3 = 2 AlBr3 + 3 BaF2
AgNO3 + ZnCl2 = AgCl + Zn(NO3)2 =>
2 AgNO3 + ZnCl2 = 2 AgCl + Zn(NO3)2
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