| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Na2F + CuSO4 = Na2SO4 + CuF =>
Na2F + CuSO4 = Na2SO4 + CuF
CuO + SiO2 = CuSiO3 =>
CuO + SiO2 = CuSiO3
C4H9OH + Mg = C4H9OMg + H2 =>
2 C4H9OH + 2 Mg = 2 C4H9OMg + H2
CuCl + O2 = CuClO3 =>
2 CuCl + 3 O2 = 2 CuClO3
Cu + H2O + NaCl = Cu(NaOH) + H + Cl =>
Cu + H2O + NaCl = Cu(NaOH) + H + Cl
MnI2 + HNO3 + NaBiO3 = HMnO4 + I2 + Bi(NO3)2 + NaNO3 + H2O =>
3 MnI2 + 21 HNO3 + 7 NaBiO3 = 3 HMnO4 + 3 I2 + 7 Bi(NO3)2 + 7 NaNO3 + 9 H2O
K + Mg(OH)2 = KOH + Mg =>
2 K + Mg(OH)2 = 2 KOH + Mg
Fe(NO3)2 + Na2CrO4 = NaNO3 + Fe2(CrO4)2 =>
2 Fe(NO3)2 + 2 Na2CrO4 = 4 NaNO3 + Fe2(CrO4)2
C2H4O2 + Cl2 = C2H3O2Cl + HCl =>
C2H4O2 + Cl2 = C2H3O2Cl + HCl
C3H3N + H2O + N2 = C3H6 + NO =>
4 C3H3N + 6 H2O + N2 = 4 C3H6 + 6 NO
MnO4 + H2C2O4 + H{+} = Mn2{+} + CO2 + H2O =>
4 MnO4 + 15 H2C2O4 + 2 H{+} = 2 Mn2{+} + 30 CO2 + 16 H2O
K[Zn(OH)3] + H2S = Zn(OH)2 + K2S + H2O =>
2 K[Zn(OH)3] + H2S = 2 Zn(OH)2 + K2S + 2 H2O
CH3COO(ac) + H2O(l) = CH3COOH(ac) + OH(ac) =>
CH3COO(ac) + H2O(l) = CH3COOH(ac) + OH(ac)
Cu(s) + MnO4{-} + H{+} = Cu{2+}(aq) + Mn{2+} + H2O =>
5 Cu(s) + 2 MnO4{-} + 16 H{+} = 5 Cu{2+}(aq) + 2 Mn{2+} + 8 H2O
S2O4{2-} + H{+} = H2O1 + SO2 + S =>
2 S2O4{2-} + 4 H{+} = 2 H2O1 + 3 SO2 + S
KAl(SO4)2 + NaOH = K[Al(SO4)2](OH)4 + Na2 =>
KAl(SO4)2 + 4 NaOH = K[Al(SO4)2](OH)4 + 2 Na2
C2H4NO + O2 = CO2 + H2O + N =>
2 C2H4NO + 5 O2 = 4 CO2 + 4 H2O + 2 N
H2O + Mo + MoO4{2-} = Mo(OH)3 + OH{-} =>
4 H2O + Mo + MoO4{2-} = 2 Mo(OH)3 + 2 OH{-}
KMnO4 + Fe + HCl = FeCl2 + MnCl2 + KCl + H2O =>
2 KMnO4 + 5 Fe + 16 HCl = 5 FeCl2 + 2 MnCl2 + 2 KCl + 8 H2O
Mn3O4 + KClO3 + K2CO3 = K2MnO4 + KCl3 + CO2 =>
8 Mn3O4 + 15 KClO3 + 19 K2CO3 = 24 K2MnO4 + 5 KCl3 + 19 CO2
O + M + H = OMH2 =>
O + M + 2 H = OMH2
NaH2CO3 + HCl = NaHCl + H2CO3 =>
NaH2CO3 + HCl = NaHCl + H2CO3
HCl + Mg = MgH2 + Cl =>
2 HCl + Mg = MgH2 + 2 Cl
Pb + KOH + H2O = H2 + K2[Pb(OH)4] =>
Pb + 2 KOH + 2 H2O = H2 + K2[Pb(OH)4]
S + HNO3 = H2SO4 + NO =>
S + 2 HNO3 = H2SO4 + 2 NO
BeCl2(aq) + AgNO3(aq) = BeNO3 + AgCl2 =>
BeCl2(aq) + AgNO3(aq) = BeNO3 + AgCl2
CrCl2 + H2O2 + H2SO4 = CrSO4 + HClO4 + H2O =>
CrCl2 + 8 H2O2 + H2SO4 = CrSO4 + 2 HClO4 + 8 H2O
Cr2O72{-} + F{-} + H{+} = Cr3{+} + H2O + F2 =>
6 Cr2O72{-} + 854 F{-} + 864 H{+} = 4 Cr3{+} + 432 H2O + 427 F2
KNO3 + CH2O = CO2 + H2O + N2 + K2O =>
4 KNO3 + 5 CH2O = 5 CO2 + 5 H2O + 2 N2 + 2 K2O
CH3CHClCOOH + NaHCO3 = CH3CHClCOONa + CO2 + H2O =>
CH3CHClCOOH + NaHCO3 = CH3CHClCOONa + CO2 + H2O
Na2[Sn(OH)4] + NaOH + Bi(NO3)3 = Bi + Na2[Sn(OH)6] + NaNO3 =>
3 Na2[Sn(OH)4] + 6 NaOH + 2 Bi(NO3)3 = 2 Bi + 3 Na2[Sn(OH)6] + 6 NaNO3
(b)N2O5 + H2O = HNO3 =>
(b)N2O5 + H2O = 2 HNO3
F2 + Al = F2Al2 =>
F2 + 2 Al = F2Al2
KMnO4 + H2SO4 + Sb = K2SO4 + MnSO4 + H2O + SbO3 =>
6 KMnO4 + 9 H2SO4 + 5 Sb = 3 K2SO4 + 6 MnSO4 + 9 H2O + 5 SbO3
BaO2 = BaO + O2 =>
2 BaO2 = 2 BaO + O2
FeS2 + O2 = Fe2O3 + SO6 =>
4 FeS2 + 27 O2 = 2 Fe2O3 + 8 SO6
KMnO4 + H2SO4 = MnSO4 + K2MnO4 + H2O + O2 =>
4 KMnO4 + 2 H2SO4 = 2 MnSO4 + 2 K2MnO4 + 2 H2O + 3 O2
H2SO4 + KI = K2SO4 + I2 + H2 =>
H2SO4 + 2 KI = K2SO4 + I2 + H2
I2 + FeF3 = F2 + FeI3 =>
3 I2 + 2 FeF3 = 3 F2 + 2 FeI3
Na2HPO4*H2O = P2O5 + NaOH + H2O =>
2 Na2HPO4*H2O = P2O5 + 4 NaOH + H2O
SO2 + O3 + H2O = sulfuricacid =>
3 SO2 + O3 + 3 H2O = 3 H2SO4
KBr + CI{2} = KCI + Br{2} =>
KBr + CI{2} = KCI + Br{2}
PbCl2 + CO + H2O = CO2 + Pb + HCl =>
PbCl2 + CO + H2O = CO2 + Pb + 2 HCl
CaSO4 + H2CO3 = CaCO3 + H2SO4 =>
CaSO4 + H2CO3 = CaCO3 + H2SO4
MnO4{-} + H{+} + Hg2{2+} = Mn{2+} + H2O + Hg{2+} =>
2 MnO4{-} + 16 H{+} + 5 Hg2{2+} = 2 Mn{2+} + 8 H2O + 10 Hg{2+}
H3PO3 + K2Cr2O7 + H2SO4 = H3PO4 + K2SO4 + Cr2(SO4)2 + H2O =>
4 H3PO3 + K2Cr2O7 + 3 H2SO4 = 4 H3PO4 + K2SO4 + Cr2(SO4)2 + 3 H2O
Fe + HCl + O2 = FeCl2 + H2O =>
2 Fe + 4 HCl + O2 = 2 FeCl2 + 2 H2O
CrCl3 + I2 + NaOH = Na2CrO4 + NaI + H2O + NaCl =>
2 CrCl3 + 3 I2 + 16 NaOH = 2 Na2CrO4 + 6 NaI + 8 H2O + 6 NaCl
NaHCO3(aq) + NiCl2(aq) = NaCl(s) + Ni(HCO3)2(aq) =>
2 NaHCO3(aq) + NiCl2(aq) = 2 NaCl(s) + Ni(HCO3)2(aq)
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