| Équations équilibrées la veille |
2 Cr + 3 S + 6 HCl = 2 CrCl3 + 3 H2S
H2SO4 + Mg(C3H2O3)2 = MgSO4 + H(C3H2O3) =>
H2SO4 + Mg(C3H2O3)2 = MgSO4 + 2 H(C3H2O3)
CrS + O2 = CrO + SO2 =>
2 CrS + 3 O2 = 2 CrO + 2 SO2
NaOH(aq) + C2O4H2(aq) = NaC2O4(aq) + H3O(l) =>
NaOH(aq) + C2O4H2(aq) = NaC2O4(aq) + H3O(l)
Mn + Cu2NO = Cu + N2 + MnO =>
2 Mn + 2 Cu2NO = 4 Cu + N2 + 2 MnO
C3H6O2 + CaCO3 = C6H10CaO4 + O2 =>
10 C3H6O2 + 6 CaCO3 = 6 C6H10CaO4 + 7 O2
BiOCl + AgNO3 = AgCl + BiONO3 =>
BiOCl + AgNO3 = AgCl + BiONO3
Fe(s) + CuO(s) = Fe2O3(s) + Cu =>
2 Fe(s) + 3 CuO(s) = Fe2O3(s) + 3 Cu
C3H10NCl + NaOH = C3H10NOH + NaCl =>
C3H10NCl + NaOH = C3H10NOH + NaCl
C6H4(OH)COOH + CH3COOOCCH3 = CH3COOC6H4COOH =>
11 C6H4(OH)COOH + CH3COOOCCH3 = 9 CH3COOC6H4COOH
(NH4)2WO4 + H2SO4 + KI = I2 + W5O14 + (NH4)2SO4 + H2O + K2SO4 =>
5(NH4)2WO4 + 6 H2SO4 + 2 KI = I2 + W5O14 + 5(NH4)2SO4 + 6 H2O + K2SO4
H2S + Br2 = BrS + H2 =>
2 H2S + Br2 = 2 BrS + 2 H2
CaS + KNO3 = Ca(NO3)2 + K2S =>
CaS + 2 KNO3 = Ca(NO3)2 + K2S
e + H{+} + IO3{-} + Cl = ICl2{-} + H2O =>
6e + 6 H{+} + IO3{-} + 2 Cl = ICl2{-} + 3 H2O
Si(NH)2 + H2O = SiO2 + NH3 =>
Si(NH)2 + 2 H2O = SiO2 + 2 NH3
Mg3(AsO4)2 + HClO4 = Mg(ClO4)2 + H3AsO4 =>
Mg3(AsO4)2 + 6 HClO4 = 3 Mg(ClO4)2 + 2 H3AsO4
Al(s) + CuSo4(aq) = Cu(s) + AlSo4(aq) =>
Al(s) + CuSo4(aq) = Cu(s) + AlSo4(aq)
Na2SO3 + H2SO4 + K2Cr2O7 = K2SO4 + Cr2(SO4)3 + Na2SO4 + H2O =>
3 Na2SO3 + 4 H2SO4 + K2Cr2O7 = K2SO4 + Cr2(SO4)3 + 3 Na2SO4 + 4 H2O
(C6H5)2CO + NaBH4 = (C6H5)2CHOH + NaBH3 =>
(C6H5)2CO + 2 NaBH4 = (C6H5)2CHOH + 2 NaBH3
CH3CH2ClCH3OK = CH3CH2OKCH3Cl =>
CH3CH2ClCH3OK = CH3CH2OKCH3Cl
Ca(CH3COO)2 = Ca(CH3COO) + CH3COO =>
Ca(CH3COO)2 = Ca(CH3COO) + CH3COO
FeCl2 + O2 + HCl = FeCl3 + H2O =>
4 FeCl2 + O2 + 4 HCl = 4 FeCl3 + 2 H2O
CO2 + H2 = CH3OOH =>
CO2 + 2 H2 = CH3OOH
Sb(OH)3 + NaOH = Na3(Sb(OH)6) =>
Sb(OH)3 + 3 NaOH = Na3(Sb(OH)6)
Pb + RaO2 = PbRaO2 =>
Pb + RaO2 = PbRaO2
H60O30N5 = N2 + H2O =>
2 H60O30N5 = 5 N2 + 60 H2O
NaNO3(s) = NaNO2(s) + O2(g) =>
2 NaNO3(s) = 2 NaNO2(s) + O2(g)
Co(NO3)2 + NaSCN = CoSCN + Na(NO3)2 =>
Co(NO3)2 + NaSCN = CoSCN + Na(NO3)2
K + H2SO4 = K2SO4 + H2S + H2O =>
8 K + 5 H2SO4 = 4 K2SO4 + H2S + 4 H2O
AlCl3 + LiBH4 = AlH3 + LiCl + BCl3 =>
4 AlCl3 + 3 LiBH4 = 4 AlH3 + 3 LiCl + 3 BCl3
Ca(OH)2 + HCl = Ca + ClO + H2O =>
3 Ca(OH)2 + 2 HCl = 3 Ca + 2 ClO + 4 H2O
K2CO3 + HMnO4 = KMnO4 + H2O + CO2 =>
K2CO3 + 2 HMnO4 = 2 KMnO4 + H2O + CO2
C3H7NO2 + (CH3CO2)2 = CH3[C3H7NO2]CO2 =>
2 C3H7NO2 + (CH3CO2)2 = 2 CH3[C3H7NO2]CO2
KMnO4 + K2Cr2O7 = KCr2O4 + K2MnO7 =>
KMnO4 + K2Cr2O7 = KCr2O4 + K2MnO7
Fe(NO3)3 + Na2SO4 = FeSO4 + (NO3) + Na2 =>
Fe(NO3)3 + Na2SO4 = FeSO4 + 3(NO3) + Na2
Fe(PO4) + NaCl + Ca(NO3)2*4H2O = FeCa9(PO4)6(HPO4)(OH) + Fe2O3 + Na(NO3) + HCl + H2O =>
7 Fe(PO4) + 18 NaCl + 9 Ca(NO3)2*4H2O = FeCa9(PO4)6(HPO4)(OH) + 3 Fe2O3 + 18 Na(NO3) + 18 HCl + 26 H2O
NH4ClO4 + Al = N2 + H2 + Cl2 + Al2O3 =>
6 NH4ClO4 + 16 Al = 3 N2 + 12 H2 + 3 Cl2 + 8 Al2O3
Al2(CO3)3 = Al2O3 + CO2 = =>
Al2(CO3)3 = Al2O3 + 3 CO2
Zn + HNO3(aquoso) = Zn(NO3)2 + NO2 + H2O =>
Zn + 4 HNO3(aquoso) = Zn(NO3)2 + 2 NO2 + 2 H2O
K2SO4NaOH = NaSO4K2OH =>
K2SO4NaOH = NaSO4K2OH
K3PO4 + Pb(CO3)2 = Pb3(PO4)4 + K2CO3 =>
4 K3PO4 + 3 Pb(CO3)2 = Pb3(PO4)4 + 6 K2CO3
NO2(g) + Cl(g) = NO2Cl(g) =>
NO2(g) + Cl(g) = NO2Cl(g)
Mg + HCl = MgCl6 + H2 =>
Mg + 6 HCl = MgCl6 + 3 H2
Ca + Fe{2+} = Ca{2+} + Fe =>
Ca + Fe{2+} = Ca{2+} + Fe
K2CO3 + Zn + HNO3 = KNO3 + ZnCO3 + H2 =>
K2CO3 + Zn + 2 HNO3 = 2 KNO3 + ZnCO3 + H2
CoCl2 + NH4OH = NH4Cl + Co(OH)2 =>
CoCl2 + 2 NH4OH = 2 NH4Cl + Co(OH)2
SiC + H2O2 + KOH = K2SiO3 + K2CO3 + H2O =>
SiC + 4 H2O2 + 4 KOH = K2SiO3 + K2CO3 + 6 H2O
Potassiumbromide + chlorine = Potassiumchloride + Bromine =>
2 KBr + Cl2 = 2 KCl + Br2
Pb + Pb{4+} = Pb{2+} =>
Pb + Pb{4+} = 2 Pb{2+}
Pb3O4 + Fe{+2} + H{+} = Pb{+2} + Fe{3+} + H2O =>
Pb3O4 + 2 Fe{+2} + 8 H{+} = 3 Pb{+2} + 2 Fe{3+} + 4 H2O
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