| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 V(s) + O2(g) = 2 V2O(s)
Na2SeO3 + HCl + H2S = Cl2 + Se + Na2S + H2O =>
Na2SeO3 + 4 HCl + H2S = 2 Cl2 + Se + Na2S + 3 H2O
NH4ClO4 + KNO3 = KClO4 + NH4NO3 =>
NH4ClO4 + KNO3 = KClO4 + NH4NO3
Al + MgSO4 = Al2(SO4)3 + Mg =>
2 Al + 3 MgSO4 = Al2(SO4)3 + 3 Mg
Da + O = Da2O =>
2 Da + O = Da2O
HNO3(aq) + Fe(s) = Fe(NO3)2 + NO2(g) + H2O(l) =>
4 HNO3(aq) + Fe(s) = Fe(NO3)2 + 2 NO2(g) + 2 H2O(l)
Cr2(SO4)3 + Mn(NO3)2 + Na2CO3 = NO + CO2 + Na2CrO4 + Na2MnO4 + Na2SO4 =>
Cr2(SO4)3 + 3 Mn(NO3)2 + 8 Na2CO3 = 6 NO + 8 CO2 + 2 Na2CrO4 + 3 Na2MnO4 + 3 Na2SO4
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
NiO + B2O3 + Mg = NiB + MgO =>
2 NiO + B2O3 + 5 Mg = 2 NiB + 5 MgO
CS + Cl2 = CSCl =>
2 CS + Cl2 = 2 CSCl
C3H6O3 + CO2 = C4H6O5 =>
C3H6O3 + CO2 = C4H6O5
PbO2 + H2SO4 + H = PbSO4 + H2O =>
PbO2 + H2SO4 + 2 H = PbSO4 + 2 H2O
NH3 + O2 = H2O + NO(g) =>
4 NH3 + 5 O2 = 6 H2O + 4 NO(g)
H{+} + I{-} + SO4{2-} = I2 + H2S + H2O =>
10 H{+} + 8 I{-} + SO4{2-} = 4 I2 + H2S + 4 H2O
I2 + NaOH + Na2S2O3 = H2O + Na2SO4 + NaI =>
4 I2 + 10 NaOH + Na2S2O3 = 5 H2O + 2 Na2SO4 + 8 NaI
CH3CH2OH + H2O2 = CH3COOH + H2O =>
CH3CH2OH + 2 H2O2 = CH3COOH + 3 H2O
ReCl5 + Re3Cl9 = ReCl4 =>
3 ReCl5 + Re3Cl9 = 6 ReCl4
NH4Cl(aq) + NaOH = NaCl + NH4OH =>
NH4Cl(aq) + NaOH = NaCl + NH4OH
KBr + H2SO4 = BrH + SO4HK =>
KBr + H2SO4 = BrH + SO4HK
Au(CN)3 + Cu = Au + (Cu(CN)3)2 =>
2 Au(CN)3 + 2 Cu = 2 Au + (Cu(CN)3)2
Na + Al2O2 = Al + Na2O =>
4 Na + Al2O2 = 2 Al + 2 Na2O
CH3COOH(aq) + NaHCO3(s) = NaCH3COO(s) + CO2(g) + H2O(l) =>
CH3COOH(aq) + NaHCO3(s) = NaCH3COO(s) + CO2(g) + H2O(l)
Fe + Br1 = FeBr3 =>
Fe + 3 Br1 = FeBr3
KC2H3O2 + Na2S = K2S + NaC2H3O2 =>
2 KC2H3O2 + Na2S = K2S + 2 NaC2H3O2
HSO4 + SrCl = HCl + SrSO4 =>
HSO4 + SrCl = HCl + SrSO4
H2SO4 + CO2 = H2SCO6 =>
H2SO4 + CO2 = H2SCO6
C4H10(g) + O2(g) = CO2(g) + H2O(v) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(v)
CoCl2*6H2O + AlCl3*6H2O = CoAl2O4 + H2O + HCl =>
CoCl2*6H2O + 2 AlCl3*6H2O = CoAl2O4 + 14 H2O + 8 HCl
C6H5C2H3 + K2Cr2O7 + H2SO4 = CO2 + Cr2(SO4)3 + K2SO4 + H2O =>
3 C6H5C2H3 + 20 K2Cr2O7 + 80 H2SO4 = 24 CO2 + 20 Cr2(SO4)3 + 20 K2SO4 + 92 H2O
NaCl(aq) + H2SO4(aq) = Na2SO4(s) + HCl(g) =>
2 NaCl(aq) + H2SO4(aq) = Na2SO4(s) + 2 HCl(g)
KMnO4 + H2O + Cu = Cu(OH)2 + MnO2 + KOH =>
2 KMnO4 + 4 H2O + 3 Cu = 3 Cu(OH)2 + 2 MnO2 + 2 KOH
HNO3 + Al = N2O + Al(NO3)3 + H2O =>
30 HNO3 + 8 Al = 3 N2O + 8 Al(NO3)3 + 15 H2O
HMnO4 + Cr = Cr(MnO4)4 + MnO + H2O =>
24 HMnO4 + 5 Cr = 5 Cr(MnO4)4 + 4 MnO + 12 H2O
KNO3(s) + C12H22O11(s) + S(s) = N2(g) + CO2(g) + K2S(s) + H2O(l) =>
8 KNO3(s) + C12H22O11(s) + 4 S(s) = 4 N2(g) + 12 CO2(g) + 4 K2S(s) + 11 H2O(l)
NH4NO3 + H2NO3 = N + H2O2 =>
NH4NO3 + H2NO3 = 3 N + 3 H2O2
Cu(OH)2 + SO2 = H2O + CuSO3 =>
Cu(OH)2 + SO2 = H2O + CuSO3
Zn + Al(OH)3 = Zn(OH)2 + Al =>
3 Zn + 2 Al(OH)3 = 3 Zn(OH)2 + 2 Al
BaCO3 + H3O{+} = Ba{2+} + H2CO3 + H2O =>
BaCO3 + 2 H3O{+} = Ba{2+} + H2CO3 + 2 H2O
PbS + H2O + O2 = PbO + H2SO4 =>
PbS + H2O + 2 O2 = PbO + H2SO4
Mg3(PO4)2 + NaClO3 = Mg(ClO3)2 + Na3PO4 =>
Mg3(PO4)2 + 6 NaClO3 = 3 Mg(ClO3)2 + 2 Na3PO4
CH3CH2CH + O2 = H2O + CHCOOH =>
4 CH3CH2CH + 9 O2 = 6 H2O + 6 CHCOOH
C2H5CHO + O = C2H5COOH =>
C2H5CHO + O = C2H5COOH
OsCl3 + H2 = OsCl2 + HCl =>
2 OsCl3 + H2 = 2 OsCl2 + 2 HCl
Fe2 + CuSO4 = Fe2SO4 + Cu =>
Fe2 + CuSO4 = Fe2SO4 + Cu
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
C17H36 + O2 = CO2 + H2O =>
C17H36 + 26 O2 = 17 CO2 + 18 H2O
Cd{+2} + S{-2} = CdS =>
Cd{+2} + S{-2} = CdS
Mg(s) + AgCl(aq) = Ag(s) + MgCl2(aq) =>
Mg(s) + 2 AgCl(aq) = 2 Ag(s) + MgCl2(aq)
Cu(s) + MgSO4(aq) = Cu(SO4)(aq) + Mg(s) =>
Cu(s) + MgSO4(aq) = Cu(SO4)(aq) + Mg(s)
C11H10 + KMnO4 + H2SO4 = C11H8O2 + K2SO4 + MnSO4 + H2O =>
5 C11H10 + 6 KMnO4 + 9 H2SO4 = 5 C11H8O2 + 3 K2SO4 + 6 MnSO4 + 14 H2O
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