| Équations équilibrées la veille |
3 H2S + Na2SO3 = 3 S + 3 H2O + Na2S
KMnO4 + Na2SO3S + H2SO4 = Na2SO4 + MnSO4 + K2SO4 + H2O =>
8 KMnO4 + 5 Na2SO3S + 7 H2SO4 = 5 Na2SO4 + 8 MnSO4 + 4 K2SO4 + 7 H2O
Ce + HCl = CeCl3 + H2 =>
2 Ce + 6 HCl = 2 CeCl3 + 3 H2
NaClO + HNO3 = NaNO3 + HClO =>
NaClO + HNO3 = NaNO3 + HClO
Fe + K3[Fe(CN)6] = Fe[Fe(CN)6] + KFe =>
4 Fe + K3[Fe(CN)6] = Fe[Fe(CN)6] + 3 KFe
Ca(NO3)2 + CO2 = CaCO3 + N2O5 =>
Ca(NO3)2 + CO2 = CaCO3 + N2O5
Fe(OH)2Cl + H2O = Fe(OH)3 + HCl =>
Fe(OH)2Cl + H2O = Fe(OH)3 + HCl
Sb(CO3) + Mn(AsO3) = Sb(AsO3) + Mn(CO3) =>
Sb(CO3) + Mn(AsO3) = Sb(AsO3) + Mn(CO3)
(NH4)2C2O4 + Ca2 = CaC2O4 + NH4 =>
2(NH4)2C2O4 + Ca2 = 2 CaC2O4 + 4 NH4
NH3 + H2O + CuSO4 = Cu(NH3)4SO4H2O =>
4 NH3 + H2O + CuSO4 = Cu(NH3)4SO4H2O
Cu(OH)2 + Cl = CuCl2 + OH =>
Cu(OH)2 + 2 Cl = CuCl2 + 2 OH
Ag{+} + Hg = Ag + Hg{2+} =>
2 Ag{+} + Hg = 2 Ag + Hg{2+}
C + S = C4S2 =>
4 C + 2 S = C4S2
H2(g) + AgCO3(aq) = Ag(s) + HCO3(aq) =>
H2(g) + 2 AgCO3(aq) = 2 Ag(s) + 2 HCO3(aq)
CaCO3 + CaSiO3 = Ca5Si2O7(CO3)2 + CO2 =>
3 CaCO3 + 2 CaSiO3 = Ca5Si2O7(CO3)2 + CO2
Cr + Cr2O7 = Cr3O7 =>
Cr + Cr2O7 = Cr3O7
H + NaOH = H2O + NaH =>
2 H + NaOH = H2O + NaH
CH2CH3CH2 + O2 = CO2 + H2O =>
4 CH2CH3CH2 + 19 O2 = 12 CO2 + 14 H2O
OH{-} + As + ClO3{-} = AsO4{-3} + Cl{-} + H2O =>
18 OH{-} + 6 As + 5 ClO3{-} = 6 AsO4{-3} + 5 Cl{-} + 9 H2O
C6H12O6 = C3H6O + CO2 + H2 =>
5 C6H12O6 = 6 C3H6O + 12 CO2 + 12 H2
CoCl2*6H2O + C2H8N2 + HCl + O2 = CoCl2(C2H8N2)2Cl + H2O =>
4 CoCl2*6H2O + 8 C2H8N2 + 4 HCl + O2 = 4 CoCl2(C2H8N2)2Cl + 26 H2O
Cu(NH3)4(OH)2 + HCl = Cu(OH)2 + NH4Cl =>
Cu(NH3)4(OH)2 + 4 HCl = Cu(OH)2 + 4 NH4Cl
HS = H + S =>
HS = H + S
Ca{2+} + (NH4)2C2O4 = CaC2O4 + NH4{+} =>
Ca{2+} + (NH4)2C2O4 = CaC2O4 + 2 NH4{+}
H6O7C2 = CO2 + H2O =>
H6O7C2 = 2 CO2 + 3 H2O
CrCl3 + K2Se + H2O = Cr(OH)3 + KCl + H2Se =>
2 CrCl3 + 3 K2Se + 6 H2O = 2 Cr(OH)3 + 6 KCl + 3 H2Se
(H3PO4) + (NH3) = (NH4)3PO4 =>
(H3PO4) + 3(NH3) = (NH4)3PO4
SO2 + NaCl + H2O + O2 = Na2SO4 + HCl =>
2 SO2 + 4 NaCl + 2 H2O + O2 = 2 Na2SO4 + 4 HCl
X2SO4 + BaCl2 = BaSO4 + XCl =>
X2SO4 + BaCl2 = BaSO4 + 2 XCl
HClO4 + Ba(OH)2 = Ba(ClO4)2 + H2O =>
2 HClO4 + Ba(OH)2 = Ba(ClO4)2 + 2 H2O
KBr + I2 = KI2 + Br2 =>
2 KBr + 2 I2 = 2 KI2 + Br2
Cu3As + HNO3 = HAsO3 + Cu(NO3)2 + NO + H2O =>
3 Cu3As + 29 HNO3 = 3 HAsO3 + 9 Cu(NO3)2 + 11 NO + 13 H2O
MgNO2 + H2O = MgO + NO2 + H2 =>
MgNO2 + H2O = MgO + NO2 + H2
Na2S + Ag(NO3)3 = Ag2S3 + NaNO3 =>
3 Na2S + 2 Ag(NO3)3 = Ag2S3 + 6 NaNO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Bi2O3 + Bi2S3 + Cu2S = BiOCuS =>
2 Bi2O3 + Bi2S3 + 3 Cu2S = 6 BiOCuS
NO2 + C = NO + CO =>
NO2 + C = NO + CO
(NH4)2S + Cr(ClO4)3 = NH4ClO4 + Cr2S3 =>
3(NH4)2S + 2 Cr(ClO4)3 = 6 NH4ClO4 + Cr2S3
Cu + Fe{+2} = Cu{+2} + Fe =>
Cu + Fe{+2} = Cu{+2} + Fe
K2Cr2O7 + SNCl2 + HCl = CrCl3 + SNCl4 + KCl + H2O =>
K2Cr2O7 + 3 SNCl2 + 14 HCl = 2 CrCl3 + 3 SNCl4 + 2 KCl + 7 H2O
Na2SnO3 + H2O = Sn(OH)4 + NaOH =>
Na2SnO3 + 3 H2O = Sn(OH)4 + 2 NaOH
CaCl + H2SO4 = Ca2SO4 + HCl =>
2 CaCl + H2SO4 = Ca2SO4 + 2 HCl
K2S + Br = KBr + S =>
K2S + 2 Br = 2 KBr + S
Br + KCl = ClBr + K =>
Br + KCl = ClBr + K
P4S3 + O2 = P4O10 + SO10 =>
P4S3 + 20 O2 = P4O10 + 3 SO10
ClO3 + Fe = Cl3Fe + O2 =>
6 ClO3 + 2 Fe = 2 Cl3Fe + 9 O2
K2CrO4 + NaNO2 + H2O = K(Cr(OH)4) + NaNO3 + KOH =>
2 K2CrO4 + 3 NaNO2 + 5 H2O = 2 K(Cr(OH)4) + 3 NaNO3 + 2 KOH
PbS + H2O2 = PbO + H2S + S =>
2 PbS + H2O2 = 2 PbO + H2S + S
C8H5KO4 + C20H14O4 = C36H24K2O12 =>
2 C8H5KO4 + C20H14O4 = C36H24K2O12
CaCO3 + HCl(aq) = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl(aq) = CaCl2 + CO2 + H2O
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