| Équations équilibrées la veille |
2 K2Cr2O7 + C2H5OH + 12 H2SO4 = 2 Cr2(SO4)3 + 2 K2(SO4)3 + CH3COOH + 13 H2O
K2C2O4*H2O + H2C2O4*2H2O + K2Cr2O7 = K3[Cr(C2O4)3]*3H2O + H2O + CO2 =>
2 K2C2O4*H2O + 7 H2C2O4*2H2O + K2Cr2O7 = 2 K3[Cr(C2O4)3]*3H2O + 17 H2O + 6 CO2
ZnSO4 + Li2CO3 = ZnCO3 + Li2SO4 =>
ZnSO4 + Li2CO3 = ZnCO3 + Li2SO4
H8N2O6S + C4H8O2 + NaOH = C2H5NO2 + H2O + Na2SO4 + C2H5OH =>
H8N2O6S + 2 C4H8O2 + 2 NaOH = 2 C2H5NO2 + 2 H2O + Na2SO4 + 2 C2H5OH
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
Bi(OH)3 + H2SnO2 = Bi + H2SnO3 + H2O =>
2 Bi(OH)3 + 3 H2SnO2 = 2 Bi + 3 H2SnO3 + 3 H2O
Al + NO3OH + H2O = Al(OH)4 + NH3 =>
5 Al + 2 NO3OH + 12 H2O = 5 Al(OH)4 + 2 NH3
PhSO4 + Na2S = PhS + Na2SO4 =>
PhSO4 + Na2S = PhS + Na2SO4
Cl2 + Ni2Br3 = NiCl3 + Br2 =>
6 Cl2 + 2 Ni2Br3 = 4 NiCl3 + 3 Br2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Ca + Sc{3+} = Ca{2+} + Sc =>
3 Ca + 2 Sc{3+} = 3 Ca{2+} + 2 Sc
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
K2O2(s) = K2O(s) + O2(g) =>
2 K2O2(s) = 2 K2O(s) + O2(g)
Al(s) + HCl(aq) = H2(g) + AlCl3(aq) =>
2 Al(s) + 6 HCl(aq) = 3 H2(g) + 2 AlCl3(aq)
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
P + K2Cr2O7 + H2SO4 = H3PO4 + K2SO4 + Cr2(SO4)3 + H2O =>
6 P + 5 K2Cr2O7 + 20 H2SO4 = 6 H3PO4 + 5 K2SO4 + 5 Cr2(SO4)3 + 11 H2O
Co + HBr = CoBr + H =>
Co + HBr = CoBr + H
Ti2S3 + O2 = Ti2O3 + SO2 =>
2 Ti2S3 + 9 O2 = 2 Ti2O3 + 6 SO2
HS + Mg(OH)2 = MgS + H2O2 + H2O =>
2 HS + 2 Mg(OH)2 = 2 MgS + H2O2 + 2 H2O
Na2CO3 + CaC2 = CaCO3 + NaC =>
Na2CO3 + CaC2 = CaCO3 + 2 NaC
(NH3)2CO3 + HCl = H2CO3 + (NH3)Cl =>
(NH3)2CO3 + 2 HCl = H2CO3 + 2(NH3)Cl
Cu(s) + H2SO4(l) = CuSO4(aq) + H2O(l) + SO2(g) =>
Cu(s) + 2 H2SO4(l) = CuSO4(aq) + 2 H2O(l) + SO2(g)
CaCo3 + H2O2 = Co2 + Ca(OH)2 =>
2 CaCo3 + 2 H2O2 = 3 Co2 + 2 Ca(OH)2
I2 + KNO3 + H2O = I{-} + KIO3 + NO3{-} + H{+} =>
3 I2 + KNO3 + 3 H2O = 5 I{-} + KIO3 + NO3{-} + 6 H{+}
Mg(NO2)2 + BeCI2 = Be(NO2)2 + MgCI2 =>
Mg(NO2)2 + BeCI2 = Be(NO2)2 + MgCI2
Ca(OH)2 + H3PO = CaH2 + PO4OH3 =>
2 Ca(OH)2 + H3PO = 2 CaH2 + PO4OH3
FeS + HNO3 + H2SO4 = Fe2(SO4)3 + NO + H2O =>
2 FeS + 6 HNO3 + H2SO4 = Fe2(SO4)3 + 6 NO + 4 H2O
Fe(OH)3 + HClO2 = Fe(ClO2)3 + H2O =>
Fe(OH)3 + 3 HClO2 = Fe(ClO2)3 + 3 H2O
NO3{-} + Zn + OH{-} = NH3 + ZnO2{2-} + H2O =>
NO3{-} + 4 Zn + 7 OH{-} = NH3 + 4 ZnO2{2-} + 2 H2O
CoCl2Ba(OH)2 = BaCl2 + Co(OH)2 =>
CoCl2Ba(OH)2 = BaCl2 + Co(OH)2
C3H7Br + KOH = KBr + C3H7OH =>
C3H7Br + KOH = KBr + C3H7OH
K(g) + H2O = KOH + H2(g) =>
2 K(g) + 2 H2O = 2 KOH + H2(g)
Al(s) + S = Al2S3 =>
2 Al(s) + 3 S = Al2S3
Mg(CIO3)2 = Mg + CIO3 =>
Mg(CIO3)2 = Mg + 2 CIO3
K2Cr2O7 + Na2SO3 + H2O = Cr(OH)3 + KOH + Na2SO4 =>
K2Cr2O7 + 3 Na2SO3 + 4 H2O = 2 Cr(OH)3 + 2 KOH + 3 Na2SO4
K2S + KNO2 + H2SO4 = K2SO4 + NO + H2O =>
K2S + 8 KNO2 + 4 H2SO4 = 5 K2SO4 + 8 NO + 4 H2O
FeOCa(OH)2 = Fe(OH)2CaO =>
FeOCa(OH)2 = Fe(OH)2CaO
Li + O2 = Li2(O) =>
4 Li + O2 = 2 Li2(O)
MgCl2 + O2 = Mg(ClO3)2 =>
MgCl2 + 3 O2 = Mg(ClO3)2
K2CO3 + CoCl2 = KCl + CO3Co =>
K2CO3 + CoCl2 = 2 KCl + CO3Co
C2H6O2 + K2Cr2O7 + HCl = C2H2O4 + KCl + CrCl3 + H2O =>
3 C2H6O2 + 4 K2Cr2O7 + 32 HCl = 3 C2H2O4 + 8 KCl + 8 CrCl3 + 22 H2O
K2CrO4 + Na2CrO4 + HCl = K2Cr2O7 + NaCl + H2O =>
K2CrO4 + Na2CrO4 + 2 HCl = K2Cr2O7 + 2 NaCl + H2O
CO4NaOH = COHNaO4 =>
CO4NaOH = COHNaO4
Sr + HCl = SrCl + H2 =>
2 Sr + 2 HCl = 2 SrCl + H2
Ag + S8 = Ag2S =>
16 Ag + S8 = 8 Ag2S
C6H5NH2 + COCl2 = (C6H5NH)2CO + HCl =>
2 C6H5NH2 + COCl2 = (C6H5NH)2CO + 2 HCl
C7H8(g) + O2(g) = CO2(g) + H2O(g) =>
C7H8(g) + 9 O2(g) = 7 CO2(g) + 4 H2O(g)
NH4{+} + O2 = NO2{-} + H{+} + H2O =>
2 NH4{+} + 3 O2 = 2 NO2{-} + 4 H{+} + 2 H2O
AlI3 + HgCl2 = AlCl3 + HgI2 =>
2 AlI3 + 3 HgCl2 = 2 AlCl3 + 3 HgI2
Ti2(SO4)3 + KMnO4 + H2SO4 = MnSO4 + K2SO4 + H2O + Ti(SO4)2 =>
5 Ti2(SO4)3 + 2 KMnO4 + 8 H2SO4 = 2 MnSO4 + K2SO4 + 8 H2O + 10 Ti(SO4)2
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