| Équations équilibrées la veille |
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
C4H8O + K2Cr2O7 + H2SO4 = C3H4O + Cr2(SO4)3 + K2SO4 + H2O =>
9 C4H8O + 5 K2Cr2O7 + 20 H2SO4 = 12 C3H4O + 5 Cr2(SO4)3 + 5 K2SO4 + 32 H2O
S + O = SO3 =>
S + 3 O = SO3
C5H11O5CHO + Cu{2+} + OH{-} = Cu2O + H2O + C5H11O5COO{-} =>
C5H11O5CHO + 2 Cu{2+} + 5 OH{-} = Cu2O + 3 H2O + C5H11O5COO{-}
H + N + O = HNO =>
H + N + O = HNO
KI + H2SO4 + KMnO4 + CHCl3 = H2O + CH2I2 + K2SO4 + MnSO4 + Cl2 =>
20 KI + 13 H2SO4 + 2 KMnO4 + 10 CHCl3 = 8 H2O + 10 CH2I2 + 11 K2SO4 + 2 MnSO4 + 15 Cl2
K + HMnO4 = K(MnO4) + H2 =>
2 K + 2 HMnO4 = 2 K(MnO4) + H2
ReO2 + Cl2 + H2O = HReO4 + Cl{-} + H3O{+} =>
2 ReO2 + 3 Cl2 + 10 H2O = 2 HReO4 + 6 Cl{-} + 6 H3O{+}
Fe{3+} + OH{-} = Fe + O + H =>
Fe{3+} + 3 OH{-} = Fe + 3 O + 3 H
Al(OH)3 + H2SO3 = Al2(SO3)3 + H2O* =>
2 Al(OH)3 + 3 H2SO3 = Al2(SO3)3 + 6 H2O*
NaClO3 = O3 + NaCl =>
NaClO3 = O3 + NaCl
MnO2 + NaOH + H2O = Na[Mn(OH)5] =>
MnO2 + NaOH + 2 H2O = Na[Mn(OH)5]
ZnOH + K = ZnKO + H2 =>
2 ZnOH + 2 K = 2 ZnKO + H2
K2Cr2O7 + H2SO4 + H2S = KHSO4 + Cr2(SO4)3 + H2O =>
4 K2Cr2O7 + 17 H2SO4 + 3 H2S = 8 KHSO4 + 4 Cr2(SO4)3 + 16 H2O
Fe + NaOH = Fe(OH)3 + Na =>
Fe + 3 NaOH = Fe(OH)3 + 3 Na
H2NCONH2 + NaOH = NH3 + Na2CO3 =>
H2NCONH2 + 2 NaOH = 2 NH3 + Na2CO3
K[Al(OH)4] + CO2 = K2CO3 + Al(OH)3 + H2O =>
2 K[Al(OH)4] + CO2 = K2CO3 + 2 Al(OH)3 + H2O
Na2SO4 + H2O = H2SO4 + NaOH =>
Na2SO4 + 2 H2O = H2SO4 + 2 NaOH
Al + HCI = AlCI + H2 =>
2 Al + 2 HCI = 2 AlCI + H2
LiBr + Pb(NO3)2 = Li(NO3) + PbBr2 =>
2 LiBr + Pb(NO3)2 = 2 Li(NO3) + PbBr2
K2Cr2O7 + S = K2SO4 + Cr2O3 =>
K2Cr2O7 + S = K2SO4 + Cr2O3
Al + NHO3 = Al(NO3)2 + H2 =>
Al + 2 NHO3 = Al(NO3)2 + H2
FeS2 + Na2O2 = Fe2O3 + Na2SO4 + Na2O =>
2 FeS2 + 15 Na2O2 = Fe2O3 + 4 Na2SO4 + 11 Na2O
Cl2O7 + H2 = HCl + H2O =>
Cl2O7 + 8 H2 = 2 HCl + 7 H2O
ZnS + O2 = ZnSO3 =>
2 ZnS + 3 O2 = 2 ZnSO3
C3H2 + H2 = C2H6 =>
2 C3H2 + 7 H2 = 3 C2H6
ClF(g) + O2(g) = Cl2O(g) + OF2(g) =>
2 ClF(g) + O2(g) = Cl2O(g) + OF2(g)
BaO + Ca(OH)2 = Ba(OH)2 + CaO =>
BaO + Ca(OH)2 = Ba(OH)2 + CaO
S2(O2)3 + H2O = H2SO4 =>
S2(O2)3 + 2 H2O = 2 H2SO4
Na2C3O4 + KMnO4 + H2SO4 = K2SO4 + Na2SO4 + H2O + MnSO4 + CO2 =>
5 Na2C3O4 + 6 KMnO4 + 14 H2SO4 = 3 K2SO4 + 5 Na2SO4 + 14 H2O + 6 MnSO4 + 15 CO2
Si4H10(l) + O2(g) = SiO2 + H2O(l) =>
2 Si4H10(l) + 13 O2(g) = 8 SiO2 + 10 H2O(l)
Pb(NO3)2 + NAl = Pb(NO3)2NAl =>
Pb(NO3)2 + NAl = Pb(NO3)2NAl
HgO = Hg + oxygen =>
2 HgO = 2 Hg + O2
Ba(s) + AlCl3(aq) = BaCl2(aq) + Al(s) =>
3 Ba(s) + 2 AlCl3(aq) = 3 BaCl2(aq) + 2 Al(s)
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Zn + NaOH + H2O = Na2Zn(OH)4 + H2 =>
Zn + 2 NaOH + 2 H2O = Na2Zn(OH)4 + H2
CuSO4 + K2S2O8 + NaOH = Cu2O3 + K2SO4 + Na2SO4 + H2O =>
2 CuSO4 + K2S2O8 + 6 NaOH = Cu2O3 + K2SO4 + 3 Na2SO4 + 3 H2O
C6H12O6 + H2 = CH4 + H2O =>
C6H12O6 + 12 H2 = 6 CH4 + 6 H2O
Ba(NO3)2 + K2CrO4 = Ba(CrO4)2 + K2(NO3) =>
Ba(NO3)2 + 2 K2CrO4 = Ba(CrO4)2 + 2 K2(NO3)
N2O5 + H2O = H(NO3) =>
N2O5 + H2O = 2 H(NO3)
SiC + KClO3 + KOH = K2SiO4 + KCl + H2O + CO2 =>
3 SiC + 5 KClO3 + 6 KOH = 3 K2SiO4 + 5 KCl + 3 H2O + 3 CO2
SnCl2 + Fe2(SO4)3 = SnSO4 + FeCl3 =>
3 SnCl2 + Fe2(SO4)3 = 3 SnSO4 + 2 FeCl3
K2O + H(OH) = K(OH) =>
K2O + H(OH) = 2 K(OH)
Al(cr) + CuSO4(aq) = Al2(SO4)3(aq) + Cu(cr) =>
2 Al(cr) + 3 CuSO4(aq) = Al2(SO4)3(aq) + 3 Cu(cr)
C6H5CH2CH2CH3 + KMnO4 + H2SO4 = C6H5COOH + MnSO4 + K2SO4 + H2O =>
35 C6H5CH2CH2CH3 + 66 KMnO4 + 99 H2SO4 = 45 C6H5COOH + 66 MnSO4 + 33 K2SO4 + 174 H2O
Na2S + Na2Cr2O7 + HCl = S8 + CrCl3 + NaCl + H2O =>
24 Na2S + 8 Na2Cr2O7 + 112 HCl = 3 S8 + 16 CrCl3 + 64 NaCl + 56 H2O
[Fe(H2O)6]{3+} + OBr{-} + OH{-} = FeO4{-} + Br{-} + H2O =>
[Fe(H2O)6]{3+} + 2 OBr{-} + 4 OH{-} = FeO4{-} + 2 Br{-} + 8 H2O
Na + MgF2 = NaF + Mg =>
2 Na + MgF2 = 2 NaF + Mg
Al + Ca(OH)2 + H2O = Ca(Al(OH)4)2 + H2 =>
2 Al + Ca(OH)2 + 6 H2O = Ca(Al(OH)4)2 + 3 H2
K2SO4BaCl2 = BaSO4K2Cl2 =>
K2SO4BaCl2 = BaSO4K2Cl2
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