| Équations équilibrées la veille |
2 HCl + Na2S2O3 = S + H2SO3 + 2 NaCl
H2(C2O4) + KOH = H2O + K2(C2O4) =>
H2(C2O4) + 2 KOH = 2 H2O + K2(C2O4)
KClO3 + Cr2(SO4)3 + KOH = KCl + K2SO4 + K2CrO4 + H2O =>
KClO3 + Cr2(SO4)3 + 10 KOH = KCl + 3 K2SO4 + 2 K2CrO4 + 5 H2O
NaCl + CO2 + NH4OH = NaHCO3 + NH4Cl =>
NaCl + CO2 + NH4OH = NaHCO3 + NH4Cl
C2H6O + Cr2O7{2-} + H{+} = C2H4O2 + H2O + Cr3{+} =>
17 C2H6O + 6 Cr2O7{2-} + 16 H{+} = 17 C2H4O2 + 25 H2O + 4 Cr3{+}
CrCl3 + KBiO3 + HCl = K2Cr2O7 + BiCl3 + KCl + H2O =>
2 CrCl3 + 3 KBiO3 + 4 HCl = K2Cr2O7 + 3 BiCl3 + KCl + 2 H2O
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Cr2O7{-2} + H{+} + C3H7OH = Cr{+3} + C2H5COOH + H2O =>
2 Cr2O7{-2} + 16 H{+} + 3 C3H7OH = 4 Cr{+3} + 3 C2H5COOH + 11 H2O
Fe2O3 = Fe + O2 =>
2 Fe2O3 = 4 Fe + 3 O2
Na(s) + S(g) = Na2S =>
2 Na(s) + S(g) = Na2S
Fe + HCl + K2Cr2O7 = CrCl3 + H2O + KCl + FeCl2 =>
3 Fe + 14 HCl + K2Cr2O7 = 2 CrCl3 + 7 H2O + 2 KCl + 3 FeCl2
I + Br2 + H2O = IO3{-} + Br{-} + H{+} =>
2 I + 5 Br2 + 6 H2O = 2 IO3{-} + 10 Br{-} + 12 H{+}
CH3COONa + KF = CH3COOK + NaF =>
CH3COONa + KF = CH3COOK + NaF
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Mg(OH)2 + O2 = MgO(OH)2 =>
2 Mg(OH)2 + O2 = 2 MgO(OH)2
AgNO3 + NH4Br = AgBr(ppt) + NH4NO3 =>
AgNO3 + NH4Br = AgBr(ppt) + NH4NO3
CH3COOH + NH4OH = NH4CH3COO + HOH =>
CH3COOH + NH4OH = NH4CH3COO + HOH
AgCl + NH3 = Ag(NH3) + Cl =>
AgCl + NH3 = Ag(NH3) + Cl
CuO + CaCO3 = CaO + CuCO3 =>
CuO + CaCO3 = CaO + CuCO3
P2S3 + K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + H3PO4 + H2O =>
3 P2S3 + 14 K2Cr2O7 + 47 H2SO4 = 14 K2SO4 + 14 Cr2(SO4)3 + 6 H3PO4 + 38 H2O
BaCl2(aq) + NaOH(aq) = Ba(OH)2(s) + NaCl(aq) =>
BaCl2(aq) + 2 NaOH(aq) = Ba(OH)2(s) + 2 NaCl(aq)
C7H6O + Cu(OH)2 = C7H6O2 + CuOH + H2O =>
C7H6O + 2 Cu(OH)2 = C7H6O2 + 2 CuOH + H2O
(b)NO2 + H2O = HNO3 + NO =>
3(b)NO2 + H2O = 2 HNO3 + NO
CaC2 + O3 = CaO + CO2 =>
3 CaC2 + 5 O3 = 3 CaO + 6 CO2
MnO2 + FeO = MnO4 + Fe =>
MnO2 + 2 FeO = MnO4 + 2 Fe
(NH4)6(Mo7O24) + Na2(CrO4) = (NH4)Na + (Mo7O24)2(CrO4)6 =>
2(NH4)6(Mo7O24) + 6 Na2(CrO4) = 12(NH4)Na + (Mo7O24)2(CrO4)6
SO3 + NO = NO2 + SO2 =>
SO3 + NO = NO2 + SO2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Cu{2+} + Br = Cu + Br{2+} =>
Cu{2+} + Br = Cu + Br{2+}
Al + Pb(NO3)2 = AlPb(NO3)2 =>
Al + Pb(NO3)2 = AlPb(NO3)2
Al + Na2CO3 = Na + Al2(CO3)3 =>
2 Al + 3 Na2CO3 = 6 Na + Al2(CO3)3
KNO3(s) + LiCl(s) = KCl(s) + LiNO3(s) =>
KNO3(s) + LiCl(s) = KCl(s) + LiNO3(s)
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Fe3C + HCl = H + FeCl12 + C =>
Fe3C + 36 HCl = 36 H + 3 FeCl12 + C
Rb3(PO4) + MgO = Mg3(PO4)2 + Rb2O =>
2 Rb3(PO4) + 3 MgO = Mg3(PO4)2 + 3 Rb2O
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
K2C4H4O6 + H2O = C4H6O6 + KOH =>
K2C4H4O6 + 2 H2O = C4H6O6 + 2 KOH
C3H3N + O2 = CO2 + H2O + N2 =>
4 C3H3N + 15 O2 = 12 CO2 + 6 H2O + 2 N2
CrCl2 + H2SO4 = Cr2(SO4)3 + HCl + H2S + H2O =>
8 CrCl2 + 13 H2SO4 = 4 Cr2(SO4)3 + 16 HCl + H2S + 4 H2O
Al + Na2CO3 = Na + Al2(CO3)3 =>
2 Al + 3 Na2CO3 = 6 Na + Al2(CO3)3
Na3Po4 + AgNo3 = NaNo3 + Ag3Po4 =>
Na3Po4 + 3 AgNo3 = 3 NaNo3 + Ag3Po4
Al + Na2CO3 = Na + Al2(CO3)3 =>
2 Al + 3 Na2CO3 = 6 Na + Al2(CO3)3
Sr(OH)2 + HCl = SrCl2 + H2O =>
Sr(OH)2 + 2 HCl = SrCl2 + 2 H2O
KMnO4 + SbCl3 + HCl = KCl + MnCl2 + SbCl5 + H2O =>
2 KMnO4 + 5 SbCl3 + 16 HCl = 2 KCl + 2 MnCl2 + 5 SbCl5 + 8 H2O
Br2 + NH4F = NH4Br + F2 =>
Br2 + 2 NH4F = 2 NH4Br + F2
C6H5CH2CH3 + KMnO4 + H2SO4 = C6H5COOH + K2SO4 + MnSO4 + H2O =>
35 C6H5CH2CH3 + 54 KMnO4 + 81 H2SO4 = 40 C6H5COOH + 27 K2SO4 + 54 MnSO4 + 136 H2O
MgSO4 + Na2CO3 = MgCO3 + Na2SO4 =>
MgSO4 + Na2CO3 = MgCO3 + Na2SO4
I4 + KOH2 = IOH2 + K =>
I4 + 4 KOH2 = 4 IOH2 + 4 K
HAsO2 + NO3 + H2O = H3AsO4 + NO =>
2 HAsO2 + NO3 + 2 H2O = 2 H3AsO4 + NO
IO3{-} + HSO3{-} = I + SO4{-2} + H{+} + H2O =>
2 IO3{-} + 5 HSO3{-} = 2 I + 5 SO4{-2} + 3 H{+} + H2O
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