| Équations équilibrées la veille | Équations équilibrées le lendemain |
(C2H5)2 + 2 HI = 2 I + (C2H6)2
CO + H2 = C8H1 + H2O =>
16 CO + 17 H2 = 2 C8H1 + 16 H2O
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
C2H2 + KMnO4 = K2C2O4 + MnO2 + KOH + H2O =>
3 C2H2 + 8 KMnO4 = 3 K2C2O4 + 8 MnO2 + 2 KOH + 2 H2O
Fe2S + NO3{-} + H{+} = Fe{+3} + SO4{-2} + NO + H2O =>
Fe2S + 4 NO3{-} + 8 H{+} = 2 Fe{+3} + SO4{-2} + 4 NO + 4 H2O
K2SO3 + KMn04 + H2O = Mn02 + K2S04 + KOH =>
4 K2SO3 + 18 KMn04 + 12 H2O = 36 Mn02 + K2S04 + 24 KOH
CuS + H{+} + NO3{-} = Cu2{+} + S + NO2 + H2O =>
2 CuS + 2 H{+} + NO3{-} = Cu2{+} + 2 S + NO2 + H2O
Pb2S3 + HNO3 = Pb(NO3)3 + H2O + NO + S =>
Pb2S3 + 8 HNO3 = 2 Pb(NO3)3 + 4 H2O + 2 NO + 3 S
C25N3H30Cl = C25N3H30 + Cl =>
C25N3H30Cl = C25N3H30 + Cl
Al2O3 + NaOH = NaAlO2 + H2O =>
Al2O3 + 2 NaOH = 2 NaAlO2 + H2O
KBr + NaCl = KCl + NaBr =>
KBr + NaCl = KCl + NaBr
Cr(NO3)3 + Br2 + KOH = K2Cr2O7 + KBr + KNO3 + H2O =>
2 Cr(NO3)3 + 3 Br2 + 14 KOH = K2Cr2O7 + 6 KBr + 6 KNO3 + 7 H2O
(NH4)2SO4 + Ba(OH)2 = BaSO4 + NH4OH =>
(NH4)2SO4 + Ba(OH)2 = BaSO4 + 2 NH4OH
H2S + HNO3 = S + N2S + H2O =>
5 H2S + 2 HNO3 = 4 S + N2S + 6 H2O
CrBr3 + K2CO3 = Cr2C3O9 + KBr =>
2 CrBr3 + 3 K2CO3 = Cr2C3O9 + 6 KBr
SnCl4 + Na(OH) = Sn(OH)4 + NaCl =>
SnCl4 + 4 Na(OH) = Sn(OH)4 + 4 NaCl
Cu1 + O2 = Cu2O =>
4 Cu1 + O2 = 2 Cu2O
Pb(NO3)2 + K2CrO4 = PbCrO4 + KNO3 =>
Pb(NO3)2 + K2CrO4 = PbCrO4 + 2 KNO3
PbI4 + (NH4)3PO4 = NH4I + Pb3(PO4)4 =>
3 PbI4 + 4(NH4)3PO4 = 12 NH4I + Pb3(PO4)4
KMnO4 + H2SO4 + FeSO3 = K2SO4 + MnSO4 + FeSO4 + H2O =>
2 KMnO4 + 3 H2SO4 + 5 FeSO3 = K2SO4 + 2 MnSO4 + 5 FeSO4 + 3 H2O
N3H12PO4 + PbN4O12 = Pb3P4O16 + NH4NO3 =>
4 N3H12PO4 + 3 PbN4O12 = Pb3P4O16 + 12 NH4NO3
Cr(NO3)3 + Br2 + KOH = K2CrO7 + KBr + KNO3 + H2O =>
2 Cr(NO3)3 + 9 Br2 + 28 KOH = 2 K2CrO7 + 18 KBr + 6 KNO3 + 14 H2O
Ba(OH)2 + H3PO4 = (BaOH)3PO4 + H2O =>
3 Ba(OH)2 + H3PO4 = (BaOH)3PO4 + 3 H2O
Al(OH)3 + H2S = Al2S3 + H2O =>
2 Al(OH)3 + 3 H2S = Al2S3 + 6 H2O
Na2SO4 + CaCl2 = CaSO4 + NaCl =>
Na2SO4 + CaCl2 = CaSO4 + 2 NaCl
Cr(NO3)3 + Br2 + KOH = K2CrO7 + KBr + KNO3 + H2O =>
2 Cr(NO3)3 + 9 Br2 + 28 KOH = 2 K2CrO7 + 18 KBr + 6 KNO3 + 14 H2O
C3H8 + O2 = C6H12O6 + H2O =>
2 C3H8 + 4 O2 = C6H12O6 + 2 H2O
HNO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + H2O(l) =>
2 HNO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + 2 H2O(l)
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Ca(OH)2 + H3PO3 = Ca3(PO3)2(s) + H2O =>
3 Ca(OH)2 + 2 H3PO3 = Ca3(PO3)2(s) + 6 H2O
N2 + H2O = NH3 + NO =>
5 N2 + 6 H2O = 4 NH3 + 6 NO
Pb(NO3)2(aq) + NaBr(aq) = Pb(Br)2(s) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaBr(aq) = Pb(Br)2(s) + 2 NaNO3(aq)
W + N = W3N7 =>
3 W + 7 N = W3N7
Cl2 + H2O = HCl + HClO =>
Cl2 + H2O = HCl + HClO
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Cu1 + O2 = CuO =>
2 Cu1 + O2 = 2 CuO
C5H10O5 = CH3CH2OH + CO2 =>
3 C5H10O5 = 5 CH3CH2OH + 5 CO2
Cu(s) + NaOH(aq) + H2O(l) = Na2(Cu(OH)4)(aq) + H2(g) =>
Cu(s) + 2 NaOH(aq) + 2 H2O(l) = Na2(Cu(OH)4)(aq) + H2(g)
Fe4[Fe(CN)6]3 + Na2CO3 + H2O = Fe(OH)3 + Na4[Fe(CN)6] + NaHCO3 =>
Fe4[Fe(CN)6]3 + 12 Na2CO3 + 12 H2O = 4 Fe(OH)3 + 3 Na4[Fe(CN)6] + 12 NaHCO3
SnCl2 + KIO3 + HCl = SnCl4 + I2 + KCl + H2O =>
5 SnCl2 + 2 KIO3 + 12 HCl = 5 SnCl4 + I2 + 2 KCl + 6 H2O
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Barium + water = Bariumhydroxide + hydrogen =>
Ba + 2 H2O = Ba(OH)2 + H2
CoBr2*6H2O + C4H8N2O2 + O2 = Co(C4H8N2O2)(C4H7N2O2)Br2 + H2O =>
4 CoBr2*6H2O + 8 C4H8N2O2 + O2 = 4 Co(C4H8N2O2)(C4H7N2O2)Br2 + 26 H2O
HBr + Al(OH)3 = H2O + AlBr3 =>
3 HBr + Al(OH)3 = 3 H2O + AlBr3
H{+} + Fe + NO3{-} = Fe{3+} + NO + H2O =>
4 H{+} + Fe + NO3{-} = Fe{3+} + NO + 2 H2O
NaCrO2 + H2O = Cr(OH)3 + Na2O =>
2 NaCrO2 + 3 H2O = 2 Cr(OH)3 + Na2O
Pb(NO3)2 + H2S = Pb2S2 + HNO3 =>
2 Pb(NO3)2 + 2 H2S = Pb2S2 + 4 HNO3
Fe + CuSO4 = FeSO4 + Cu =>
Fe + CuSO4 = FeSO4 + Cu
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