| Équations équilibrées la veille | Équations équilibrées le lendemain |
13 O2(g) + 2 C4H10(g) = 8 CO2(g) + 10 H2O(l)
(NH3OH){+} = N2O + e + H2O + H{+} =>
2(NH3OH){+} = N2O + 4e + H2O + 6 H{+}
C6HO1 + O2 = CO2 + H2O =>
4 C6HO1 + 23 O2 = 24 CO2 + 2 H2O
HFO4 = H + FO4 =>
HFO4 = H + FO4
SnCl2 + I2 = SnI4 + Cl2 =>
SnCl2 + 2 I2 = SnI4 + Cl2
CH3CH2CH2OH + Cr2O7{-2} + H{+} = CH3CH2CHO + Cr{+3} + H2O =>
3 CH3CH2CH2OH + Cr2O7{-2} + 8 H{+} = 3 CH3CH2CHO + 2 Cr{+3} + 7 H2O
K2Cr2O7 + HNO2 + H2SO4 = Cr2O3 + K2SO4 + HNO3 + H2O =>
K2Cr2O7 + 3 HNO2 + H2SO4 = Cr2O3 + K2SO4 + 3 HNO3 + H2O
KMnO4 + C4H10O = H2O + K2CO3 + MnO2 =>
8 KMnO4 + C4H10O = 5 H2O + 4 K2CO3 + 8 MnO2
C3H6 = C9H12 + H2 =>
3 C3H6 = C9H12 + 3 H2
Ag + H2SeO4 = Ag2(SeO4)3 + H2SeO3 + H2O =>
2 Ag + 6 H2SeO4 = Ag2(SeO4)3 + 3 H2SeO3 + 3 H2O
Na3PO4 + CaCl2 = NaCl + Ca3(PO4)2 =>
2 Na3PO4 + 3 CaCl2 = 6 NaCl + Ca3(PO4)2
HNO3 + HS2 = NO + S + H2O =>
HNO3 + 3 HS2 = NO + 6 S + 2 H2O
HNO3 + (CaOH)2 = (CaNO3)2 + H2O =>
2 HNO3 + (CaOH)2 = (CaNO3)2 + 2 H2O
H2 + O2 + S = HSO3 =>
H2 + 3 O2 + 2 S = 2 HSO3
Pb(NO3)2 + HCl = Pb + Cl(NO3)3 + H2 =>
3 Pb(NO3)2 + 2 HCl = 3 Pb + 2 Cl(NO3)3 + H2
FeO + Ba = Fe + BaO =>
FeO + Ba = Fe + BaO
CH4N2O + H2SO4 = SH4N2O3 + H2 + CO2 =>
CH4N2O + H2SO4 = SH4N2O3 + H2 + CO2
KCr2 + Br2 + KOH = K2CrO4 + KBr + H2O =>
2 KCr2 + 13 Br2 + 32 KOH = 4 K2CrO4 + 26 KBr + 16 H2O
SnCl2 + Na2SO3 + HCl = S + H2[SnCl6] + H2O + NaCl =>
2 SnCl2 + Na2SO3 + 10 HCl = S + 2 H2[SnCl6] + 3 H2O + 2 NaCl
FeCO3 + HI = CO2 + FeI2 + H2O =>
FeCO3 + 2 HI = CO2 + FeI2 + H2O
FePO4 + HNO3 = H3PO4 + Fe(NO3)3 =>
FePO4 + 3 HNO3 = H3PO4 + Fe(NO3)3
C2H4O2 + C12H24O2 = C39H74O6 + H2O =>
9 C2H4O2 + 31 C12H24O2 = 10 C39H74O6 + 20 H2O
Mg + Cu2(NO3) = Mg2(NO3) + Cu =>
2 Mg + Cu2(NO3) = Mg2(NO3) + 2 Cu
KH2PO4 + AgNO3 = KH2NO3 + AgPO4 =>
KH2PO4 + AgNO3 = KH2NO3 + AgPO4
Ca + HNO3 = H + Ca(NO3)2 =>
Ca + 2 HNO3 = 2 H + Ca(NO3)2
NH4NO3 + Na2CO3 = NaNO3 + NH3 + CO2 + H2O =>
2 NH4NO3 + Na2CO3 = 2 NaNO3 + 2 NH3 + CO2 + H2O
CuCl2 + AgNO3 = Cu(NO3)2(aq) + AgCl =>
CuCl2 + 2 AgNO3 = Cu(NO3)2(aq) + 2 AgCl
C8H10 + O2 = C6H4(COOH)2 + H2O =>
C8H10 + 3 O2 = C6H4(COOH)2 + 2 H2O
Mg3(PO4)2 + K2C2O4 = MgC2O4 + K3PO4 =>
Mg3(PO4)2 + 3 K2C2O4 = 3 MgC2O4 + 2 K3PO4
OH{-} + V + H2O = HV6O17{3-} + H2 =>
3 OH{-} + 6 V + 14 H2O = HV6O17{3-} + 15 H2
HCOOCH2CH3 + H2SO4 = COH2SO4 + CH3CH2OH =>
HCOOCH2CH3 + H2SO4 = COH2SO4 + CH3CH2OH
CaC2 + CaO = Ca + CO2 =>
CaC2 + 4 CaO = 5 Ca + 2 CO2
Cr2O7{2-} + H3O{+} + e = Cr{3} + H2O =>
Cr2O7{2-} + 14 H3O{+} + 6e = 2 Cr{3} + 21 H2O
C6H5COOH + Na2CO3 = C6H5COONa + H2CO3 =>
2 C6H5COOH + Na2CO3 = 2 C6H5COONa + H2CO3
Na2CO3 + H2O = Na2(OH) + HCO3 =>
Na2CO3 + H2O = Na2(OH) + HCO3
FeCl3 = iron + chlorine =>
2 FeCl3 = 2 Fe + 3 Cl2
Ag{+} + Fe = Fe{3+} + Ag =>
3 Ag{+} + Fe = Fe{3+} + 3 Ag
C3H8 + S2O3{2-} + H2O = HCO3{-} + HS{-} + H{+} =>
2 C3H8 + 5 S2O3{2-} + 3 H2O = 6 HCO3{-} + 10 HS{-} + 6 H{+}
KBr + H2SO4 + MnO2 = Br2MnSO4 + H2O + KHSO4 =>
2 KBr + 3 H2SO4 + MnO2 = Br2MnSO4 + 2 H2O + 2 KHSO4
Mg2NO3 + KI = Mg2I + KNO3 =>
Mg2NO3 + KI = Mg2I + KNO3
Na(OH) + CO2 = H2O + Na2(CO3) =>
2 Na(OH) + CO2 = H2O + Na2(CO3)
Fe2(s) + HCl(aq) = FeCl3(aq) + H2(g) =>
Fe2(s) + 6 HCl(aq) = 2 FeCl3(aq) + 3 H2(g)
CH4N2O + C2H5OH + H2O2 = C6H13NO2 + H2O =>
2 CH4N2O + 11 C2H5OH + 6 H2O2 = 4 C6H13NO2 + 17 H2O
Cr(NO3)3 + BeI2 = CrI3 + Be(NO3)2 =>
2 Cr(NO3)3 + 3 BeI2 = 2 CrI3 + 3 Be(NO3)2
H2SO4 + Na4Fe(CN)6 + KMnO4 = CO2 + Fe2(SO4)3 + H2O + HNO3 + KHSO4 + MnSO4 + NaHSO4 =>
299 H2SO4 + 10 Na4Fe(CN)6 + 122 KMnO4 = 60 CO2 + 5 Fe2(SO4)3 + 188 H2O + 60 HNO3 + 122 KHSO4 + 122 MnSO4 + 40 NaHSO4
FeCl3 + H2S + H2O = FeCl2 + H2SO4 + HCl =>
8 FeCl3 + H2S + 4 H2O = 8 FeCl2 + H2SO4 + 8 HCl
NCl3 + NO = N2 + Cl2O =>
4 NCl3 + 6 NO = 5 N2 + 6 Cl2O
NO + H2O = NH3 + O3 =>
6 NO + 9 H2O = 6 NH3 + 5 O3
Mn3O(CH3COO)7 + HCl = Cl2 + Mn(CH3COO)2 + CH3COOH + H2O =>
2 Mn3O(CH3COO)7 + 6 HCl = 3 Cl2 + 6 Mn(CH3COO)2 + 2 CH3COOH + 2 H2O
Cr(NO3)3 + BaSO4 = Cr2(SO4)3 + Ba(NO3)2 =>
2 Cr(NO3)3 + 3 BaSO4 = Cr2(SO4)3 + 3 Ba(NO3)2
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