| Équations équilibrées la veille |
2 C6H2O2 + 11 O2 = 12 CO2 + 2 H2O
H2O + Se + Cd2{+} = Cd + SeO32{-} + H{+} =>
32 H2O + Se + 63 Cd2{+} = 126 Cd + SeO32{-} + 64 H{+}
CH3C(Br)(CH3)CH3 + KOH = C4H8 + KBr + H2O =>
CH3C(Br)(CH3)CH3 + KOH = C4H8 + KBr + H2O
Na2B4O7 + CuSO4 + H2O = CuO + H3BO3 + Na2SO4 =>
Na2B4O7 + CuSO4 + 6 H2O = CuO + 4 H3BO3 + Na2SO4
Pb(OH)4 + Ca(NO2)2 = Ca(OH)2 + Pb(NO2)4 =>
Pb(OH)4 + 2 Ca(NO2)2 = 2 Ca(OH)2 + Pb(NO2)4
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
Na3PO4 + H2O = NaOH + H3PO4 =>
Na3PO4 + 3 H2O = 3 NaOH + H3PO4
Ba(NO3)2 + H3PO4 = Ba3(PO4)2 + HNO3 =>
3 Ba(NO3)2 + 2 H3PO4 = Ba3(PO4)2 + 6 HNO3
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
BaBr2 + H2SO4 = HBr + BaSO4 =>
BaBr2 + H2SO4 = 2 HBr + BaSO4
CaO + Na = Na2O + Ca =>
CaO + 2 Na = Na2O + Ca
NO2 + oxygen + water = HNO3 =>
4 NO2 + O2 + 2 H2O = 4 HNO3
XeO3 = Xe + O2 =>
2 XeO3 = 2 Xe + 3 O2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Ca(HCO3)2 + FeCl3 = Fe(OH)3 + CaCl2 + CO2 =>
3 Ca(HCO3)2 + 2 FeCl3 = 2 Fe(OH)3 + 3 CaCl2 + 6 CO2
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
Br2 + NaI = I2 + NaBr =>
Br2 + 2 NaI = I2 + 2 NaBr
Al2O3(s) + CO(g) = Al(s) + CO2(g)* =>
Al2O3(s) + 3 CO(g) = 2 Al(s) + 3 CO2(g)*
Cu + H2SO4 = CuSO4 + H2O + SO2 =>
Cu + 2 H2SO4 = CuSO4 + 2 H2O + SO2
Fe(NO3)2 + O2 = FeO + NO3 =>
2 Fe(NO3)2 + O2 = 2 FeO + 4 NO3
CaSO3 + NaCl = Na2SO3 + CaCl2 =>
CaSO3 + 2 NaCl = Na2SO3 + CaCl2
Pb2{+} + S2{-} = PbS(s) =>
Pb2{+} + S2{-} = 2 PbS(s)
Sn3(PO4)4 + Na2CO3 = Sn2(CO3)4 + Na3PO4 =>
2 Sn3(PO4)4 + 12 Na2CO3 = 3 Sn2(CO3)4 + 8 Na3PO4
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
C4H8Cl2 + Na = NaCl + C4H8 =>
C4H8Cl2 + 2 Na = 2 NaCl + C4H8
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Ca + AgNO3 = Ag + Ca(NO3)2 =>
Ca + 2 AgNO3 = 2 Ag + Ca(NO3)2
COCl2 + H2O = HCl + CO2 =>
COCl2 + H2O = 2 HCl + CO2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
HNO3 + I2 = NO + HIO3 + H2O =>
10 HNO3 + 3 I2 = 10 NO + 6 HIO3 + 2 H2O
C2H5OH + CO2 = CH3CO2H =>
2 C2H5OH + 2 CO2 = 3 CH3CO2H
C2O + H2O = HCO =>
C2O + H2O = 2 HCO
N2S4 = N + S =>
N2S4 = 2 N + 4 S
PCl5 + H2O = POCl3 + HCl =>
PCl5 + H2O = POCl3 + 2 HCl
(NH4)3PO4 + NiCO3 = (NH4)2CO3 + Ni3(PO4)2 =>
2(NH4)3PO4 + 3 NiCO3 = 3(NH4)2CO3 + Ni3(PO4)2
Pb(C2H5)4 + O2 = PbO + H2O + CO2 =>
2 Pb(C2H5)4 + 27 O2 = 2 PbO + 20 H2O + 16 CO2
NaHCO3(s) = Na2CO3(s)CO2(g)H2O(g) =>
2 NaHCO3(s) = Na2CO3(s)CO2(g)H2O(g)
HgO + Cl2 = HgCl + O2 =>
2 HgO + Cl2 = 2 HgCl + O2
Al + Br2 = AlBr3 =>
2 Al + 3 Br2 = 2 AlBr3
Fe2(SO4)3 + AlPO4 = FePO4 + Al2(SO4)3 =>
Fe2(SO4)3 + 2 AlPO4 = 2 FePO4 + Al2(SO4)3
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2S3O12 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2S3O12 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
Al + Cu(NO3)2 = Al(NO3)3 + Cu =>
2 Al + 3 Cu(NO3)2 = 2 Al(NO3)3 + 3 Cu
KHSO3 + Ba(OH)2 = K2SO3 + BaSO3 + H2O =>
2 KHSO3 + Ba(OH)2 = K2SO3 + BaSO3 + 2 H2O
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
N2O3 = N + O =>
N2O3 = 2 N + 3 O
N2 + O2 = N2O3 =>
2 N2 + 3 O2 = 2 N2O3
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
COOHCH2CH2COOH + NH3 = C8H17O3N2 + H2O + CO2 =>
37 COOHCH2CH2COOH + 28 NH3 = 14 C8H17O3N2 + 34 H2O + 36 CO2
HClNaNo3 = NaClHNo3 =>
HClNaNo3 = NaClHNo3
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