| Équations équilibrées la veille | Équations équilibrées le lendemain |
CH4 + 2 O2 = CO2 + 2 H2O
Na3Fe(CN)6 + Pb(C2O4)2 = Na2C2O4 + Pb3(Fe(CN)6)4 =>
4 Na3Fe(CN)6 + 3 Pb(C2O4)2 = 6 Na2C2O4 + Pb3(Fe(CN)6)4
FeS + K2O2 = Fe2O3 + K2SO4 + K2O =>
2 FeS + 9 K2O2 = Fe2O3 + 2 K2SO4 + 7 K2O
NaHCO3 = NaOH + CO2 =>
NaHCO3 = NaOH + CO2
FeCl3 + NH3 = FeH3 + NCl3 =>
FeCl3 + NH3 = FeH3 + NCl3
[Cu(NH3)4]SO4 + HNO3 = Cu(NO3)2 + H2SO4 + NH3 =>
[Cu(NH3)4]SO4 + 2 HNO3 = Cu(NO3)2 + H2SO4 + 4 NH3
C21H48 + O2 = CO2 + H2O =>
C21H48 + 33 O2 = 21 CO2 + 24 H2O
P + N2 = PN =>
2 P + N2 = 2 PN
Mg(s)(Cl(l)O(g)3)2 = Mg(ClO3)2 =>
Mg(s)(Cl(l)O(g)3)2 = Mg(ClO3)2
As + NaOCl = As2O3 + NaCl =>
2 As + 3 NaOCl = As2O3 + 3 NaCl
KClO3 + H2O = Cl2O5 + KOH =>
2 KClO3 + H2O = Cl2O5 + 2 KOH
FeCl2 + K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + KCl =>
3 FeCl2 + 2 K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + 6 KCl
Mg(NO3)2 + (NH4)2C2O4 = MgC2O4 + (NH4)2(NO3)2 =>
Mg(NO3)2 + (NH4)2C2O4 = MgC2O4 + (NH4)2(NO3)2
NH2NHCOCONH2 + H2O = N2H4 + NH3 + H2C2O4 =>
NH2NHCOCONH2 + 2 H2O = N2H4 + NH3 + H2C2O4
Fe(OH)2 + HNO3 = Fe(NO3)2 + H2O =>
Fe(OH)2 + 2 HNO3 = Fe(NO3)2 + 2 H2O
I + H2SO4 = HI + SO4 =>
2 I + H2SO4 = 2 HI + SO4
CO2 + H2O = H2CO3 =>
CO2 + H2O = H2CO3
KMnO4 + FeSO4 + KOH + H2O = K2SO4 + MnO2 + Fe(OH)4 =>
2 KMnO4 + 3 FeSO4 + 4 KOH + 4 H2O = 3 K2SO4 + 2 MnO2 + 3 Fe(OH)4
KMnO4 + H2SO4 + (N2H5)2SO4 = MnSO4 + H2O + N2 + K2SO4 =>
8 KMnO4 + 7 H2SO4 + 5(N2H5)2SO4 = 8 MnSO4 + 32 H2O + 10 N2 + 4 K2SO4
C6H5CHO + NaHSO3 = C6H5COH2SO3Na =>
C6H5CHO + NaHSO3 = C6H5COH2SO3Na
H2 + NO2 = H2O + N2O =>
3 H2 + 2 NO2 = 3 H2O + N2O
C2H6O + C12H22O11 = C20H40O2 + H2O =>
54 C2H6O + C12H22O11 = 6 C20H40O2 + 53 H2O
MoS2 + HNO3 = H2O + SO2 + N2 + MoO3 =>
5 MoS2 + 14 HNO3 = 7 H2O + 10 SO2 + 7 N2 + 5 MoO3
H2C = CH2 = CH3CHO =>
H2C = CH2
BaF2 + H2SO4(aq) = BaSO4 + HF(aq) =>
BaF2 + H2SO4(aq) = BaSO4 + 2 HF(aq)
C6H12 + Cl2 = C6Cl12 + HCl =>
C6H12 + 12 Cl2 = C6Cl12 + 12 HCl
KNO3 + KI + H2SO4 = NO + K2SO4 + H2O + I2 =>
2 KNO3 + 6 KI + 4 H2SO4 = 2 NO + 4 K2SO4 + 4 H2O + 3 I2
K3Fe(CN)6 + H2SO4 = K2SO4 + Fe2(SO4)3 + HCN =>
2 K3Fe(CN)6 + 6 H2SO4 = 3 K2SO4 + Fe2(SO4)3 + 12 HCN
MgCO3(g) = CO2(g) + MgO(s) =>
MgCO3(g) = CO2(g) + MgO(s)
KMnO4 + Na2C2O4 + H2O = MnO2 + NaOH + CO2 + KOH =>
2 KMnO4 + 3 Na2C2O4 + 4 H2O = 2 MnO2 + 6 NaOH + 6 CO2 + 2 KOH
S + O2 = SO2 =>
S + O2 = SO2
C8H18 + NaOH + NH4ClO4 = CO2 + H2O + N2 + NaCl =>
C8H18 + 10 NaOH + 10 NH4ClO4 = 8 CO2 + 34 H2O + 5 N2 + 10 NaCl
HO5 = H2O + O =>
2 HO5 = H2O + 9 O
C4H10 + Cl2 = C4H8Cl2 + HCl =>
C4H10 + 2 Cl2 = C4H8Cl2 + 2 HCl
H3P = P2 + H2 =>
2 H3P = P2 + 3 H2
NaCrO2 + PbO2 + NaOH = Na2CrO4 + Na2PbO2 + H2O =>
2 NaCrO2 + 3 PbO2 + 8 NaOH = 2 Na2CrO4 + 3 Na2PbO2 + 4 H2O
C18H34O2 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + CO2 + H2O =>
C18H34O2 + 17 K2Cr2O7 + 68 H2SO4 = 17 Cr2(SO4)3 + 17 K2SO4 + 18 CO2 + 85 H2O
FeCl2 + NH4OH = Fe(OH)2 + NH4Cl =>
FeCl2 + 2 NH4OH = Fe(OH)2 + 2 NH4Cl
HI + HNO2 = I + NO + H2O =>
HI + HNO2 = I + NO + H2O
SiO2 + H2SO4 = SiH4 + SO3 + O2 =>
SiO2 + 2 H2SO4 = SiH4 + 2 SO3 + 2 O2
C10H8 + N2 + H2O = HCN + N2O =>
C10H8 + 6 N2 + H2O = 10 HCN + N2O
KMnO4 + H2O + K2S = K2SO4 + MnO2 + KOH =>
8 KMnO4 + 4 H2O + 3 K2S = 3 K2SO4 + 8 MnO2 + 8 KOH
K3PO4 + H2SO3 = H3PO4 + K2SO3 =>
2 K3PO4 + 3 H2SO3 = 2 H3PO4 + 3 K2SO3
C6H12O6 + NO2 = CO2 + H2O + N2 =>
C6H12O6 + 6 NO2 = 6 CO2 + 6 H2O + 3 N2
AgS + HClO3 + HCl = AgCl + H2O + S2 =>
6 AgS + HClO3 + 5 HCl = 6 AgCl + 3 H2O + 3 S2
I + H2SO4 = HI + SO4 =>
2 I + H2SO4 = 2 HI + SO4
Na2CO3 + C2H4O = H2O + CO2 + NaC2H3O2 =>
5 Na2CO3 + 8 C2H4O = H2O + CO2 + 10 NaC2H3O2
Cu2CO3(OH)2 + H2CO3 = Cu3(CO3)2(OH)2 + H2O =>
3 Cu2CO3(OH)2 + H2CO3 = 2 Cu3(CO3)2(OH)2 + 2 H2O
La + NO3 = LaNO3 =>
La + NO3 = LaNO3
C6H6O2 + HOCl = CH2O + HCl + CO2 =>
C6H6O2 + 7 HOCl = 3 CH2O + 7 HCl + 3 CO2
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