| Équations équilibrées la veille | Équations équilibrées le lendemain |
7 K2Cr2O7 + 6 NH3*H2O = 7 Cr2O3 + 14 KOH + 6 NO2 + 8 H2O
FeS2 + O2 = Fe2O36 + SO2 =>
2 FeS2 + 22 O2 = Fe2O36 + 4 SO2
HOCl + H2O2 = HClO3 + H2O =>
HOCl + 2 H2O2 = HClO3 + 2 H2O
Cu + S = Cu2S5 =>
2 Cu + 5 S = Cu2S5
SC2 + C = SC3 =>
SC2 + C = SC3
[Ni(NH3)6]Cl2 + KCN + H2O = K2[Ni(CN)4] + NH4OH + KCl =>
[Ni(NH3)6]Cl2 + 4 KCN + 6 H2O = K2[Ni(CN)4] + 6 NH4OH + 2 KCl
BF3(g) + H2O(l) = HF(l) + B2O3 =>
2 BF3(g) + 3 H2O(l) = 6 HF(l) + B2O3
CaO + H3PO4 = Ca3(PO4)2 + H2O =>
3 CaO + 2 H3PO4 = Ca3(PO4)2 + 3 H2O
CH3CH2OHNaOH = CH3CH2ONaH2O =>
CH3CH2OHNaOH = CH3CH2ONaH2O
Ba(NO3)2(aq) + K2(CrO4)(aq) = Ba(CrO4)(aq) + K(NO3)(aq) =>
Ba(NO3)2(aq) + K2(CrO4)(aq) = Ba(CrO4)(aq) + 2 K(NO3)(aq)
HNO3 + H2SO4 + Hg = Hg2SO4 + H2O + NO =>
2 HNO3 + 3 H2SO4 + 6 Hg = 3 Hg2SO4 + 4 H2O + 2 NO
C6H12 + O2 = H2C8H8O4 + H2O =>
8 C6H12 + 21 O2 = 6 H2C8H8O4 + 18 H2O
MnS + H2O2 = MnO2SO4 + H2O =>
MnS + 6 H2O2 = MnO2SO4 + 6 H2O
H2O4 = O2 + H2O =>
2 H2O4 = 3 O2 + 2 H2O
PbI2 + NaOH = Pb(OH)2 + NaI =>
PbI2 + 2 NaOH = Pb(OH)2 + 2 NaI
KF + HCl = KFCl + H2 =>
2 KF + 2 HCl = 2 KFCl + H2
Na(OH) + Br2 = Na(BrO3) + NaBr + H2O =>
6 Na(OH) + 3 Br2 = Na(BrO3) + 5 NaBr + 3 H2O
FeSO4(aq)Na2CO3(aq) = FeCO3(aq)Na2SO4(s) =>
FeSO4(aq)Na2CO3(aq) = FeCO3(aq)Na2SO4(s)
H2SO4(l) = H2O(l) + SO3(g) =>
H2SO4(l) = H2O(l) + SO3(g)
H2 + H2WO4 = W + H2O =>
3 H2 + H2WO4 = W + 4 H2O
MgSO4 + Na2HPO4 = MgHPO4 + Na2SO4 =>
MgSO4 + Na2HPO4 = MgHPO4 + Na2SO4
MnO2 + NaNO3 + NaOH = Na2MnO4 + NaNO2 + H2O =>
MnO2 + NaNO3 + 2 NaOH = Na2MnO4 + NaNO2 + H2O
Na2O2 + CO = NaCO + O =>
Na2O2 + 2 CO = 2 NaCO + 2 O
C5H12 + Br2 = C6H14 + HBr =>
6 C5H12 + Br2 = 5 C6H14 + 2 HBr
KPO4 + Pb(NO3)2 = KNO3 + Pb(PO4)2 =>
2 KPO4 + Pb(NO3)2 = 2 KNO3 + Pb(PO4)2
P4 + O2 = P2O3 =>
P4 + 3 O2 = 2 P2O3
HClO(aq) + Ca(OH)2(aq) = H2O(l) + Ca(ClO)2(aq) =>
2 HClO(aq) + Ca(OH)2(aq) = 2 H2O(l) + Ca(ClO)2(aq)
(NH4)2C2O4 + BaCl2 = NH4Cl + BaC2O4 =>
(NH4)2C2O4 + BaCl2 = 2 NH4Cl + BaC2O4
SO2(s) + HF(l) = SF4(g) + H2O(l) =>
SO2(s) + 4 HF(l) = SF4(g) + 2 H2O(l)
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Ca(SO4) = CaO + SO2 + O2 =>
2 Ca(SO4) = 2 CaO + 2 SO2 + O2
KClHNO3 = KNO3HCl =>
KClHNO3 = KNO3HCl
C10H12O3 + H2O = CO2 + CH4 =>
4 C10H12O3 + 22 H2O = 17 CO2 + 23 CH4
MgSO4 + Na2HPO4 = MgHPO4 + Na2SO4 =>
MgSO4 + Na2HPO4 = MgHPO4 + Na2SO4
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
CaCO3 + MgCO = CaO + MgO + CO =>
CaCO3 + MgCO = CaO + MgO + 2 CO
Cu + Si = CuSi =>
Cu + Si = CuSi
K3PO3 + Sr(NO3)2 = Sr3(PO3)2 + KNO3 =>
2 K3PO3 + 3 Sr(NO3)2 = Sr3(PO3)2 + 6 KNO3
C3H8O + Cr2O7{2-} + H{+} = C3H6O + H2O + Cr{3+} =>
3 C3H8O + Cr2O7{2-} + 8 H{+} = 3 C3H6O + 7 H2O + 2 Cr{3+}
KOH + FeCl2 = Fe(OH)2 + KCl =>
2 KOH + FeCl2 = Fe(OH)2 + 2 KCl
NaOH(s) + H2SO4(c) = Na2SO4 + H2O =>
2 NaOH(s) + H2SO4(c) = Na2SO4 + 2 H2O
Fe2O3 + Ca(OH)2 = Ca(FeO2)2 + H2O =>
Fe2O3 + Ca(OH)2 = Ca(FeO2)2 + H2O
H2NCH2CH2OH + H2O = OH + H2NCH2CH2OH2 =>
H2NCH2CH2OH + H2O = OH + H2NCH2CH2OH2
Mg(s) + HCl(aq) = H2Mg(l) + Cl2(g) =>
Mg(s) + 2 HCl(aq) = H2Mg(l) + Cl2(g)
(NH4)3PO4 + MgCl2 = MgNH4PO4 + NH4Cl =>
(NH4)3PO4 + MgCl2 = MgNH4PO4 + 2 NH4Cl
N2O(g) + NH3(g) = N2(g) + H2O(g) =>
3 N2O(g) + 2 NH3(g) = 4 N2(g) + 3 H2O(g)
I(s) + Cl2 = ICl3 =>
2 I(s) + 3 Cl2 = 2 ICl3
Al(OH)3(s) + HCl(aq) = H2O + AlCl3 =>
Al(OH)3(s) + 3 HCl(aq) = 3 H2O + AlCl3
VO2 + Fe{3+} + H2O = V2O5 + Fe{2+} + H{+} =>
2 VO2 + 2 Fe{3+} + H2O = V2O5 + 2 Fe{2+} + 2 H{+}
Ca(CH3COOH)2 + Ca(OH)2 = Ca(CH3COO) + H2O =>
Ca(CH3COOH)2 + Ca(OH)2 = 2 Ca(CH3COO) + 2 H2O
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