| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 HCl + 2 HI = 3 H2 + 2 Cl2I
Cu{+} = Cu{2+} + {-} =>
Cu{+} = Cu{2+} + e
HCl + Pb = PbCl2 + H2 =>
2 HCl + Pb = PbCl2 + H2
MgS + H2 = H2S + Mg =>
MgS + H2 = H2S + Mg
C + MgO = CO2 + Mg =>
C + 2 MgO = CO2 + 2 Mg
H2PO2 + Mg(OH)2 = MgPO2 + H2O =>
H2PO2 + Mg(OH)2 = MgPO2 + 2 H2O
Al(IO3)3 + H2O = Al(OH)3 + HIO3 =>
Al(IO3)3 + 3 H2O = Al(OH)3 + 3 HIO3
Cr2S3 + H2O = H2S + Cr(OH)3 =>
Cr2S3 + 6 H2O = 3 H2S + 2 Cr(OH)3
CH3COOH + H2O = CH3COOHH2O =>
CH3COOH + H2O = CH3COOHH2O
Ba3N2 + H2SO4 = BaSO4 + NH3 =>
Ba3N2 + 3 H2SO4 = 3 BaSO4 + 2 NH3
Hg + HCl + H2O = Hg2Cl2 + H4O =>
2 Hg + 2 HCl + H2O = Hg2Cl2 + H4O
Cr2O3 + Mn2O7 = CrO3 + Mn2O3 =>
4 Cr2O3 + 3 Mn2O7 = 8 CrO3 + 3 Mn2O3
KOH + Zn(OH)2 = Zn(OH)4{2-} + K{+} =>
2 KOH + Zn(OH)2 = Zn(OH)4{2-} + 2 K{+}
CrO3 + CaO = CaCrO4 =>
CrO3 + CaO = CaCrO4
FeK3PO4 + BaCl2 = FeCl2 + BaK3PO4 =>
FeK3PO4 + BaCl2 = FeCl2 + BaK3PO4
Y2O3 + NH4Y2F7 = Y5O4F7 + NH4F =>
8 Y2O3 + 7 NH4Y2F7 = 6 Y5O4F7 + 7 NH4F
Cu3(CO3) + (OH)2 + HCl = CuCl2 + H2O + CO2 =>
Cu3(CO3) + 2(OH)2 + 6 HCl = 3 CuCl2 + 5 H2O + CO2
PH3 + O2 = H2O + PO5 =>
4 PH3 + 13 O2 = 6 H2O + 4 PO5
H2 + Se03 + Cu(OH)2 = CuSe03 + H2O =>
H2 + Se03 + Cu(OH)2 = CuSe03 + 2 H2O
H2SO3 + NaMnO4 = MnSO4 + H2SO4 + Na2SO4 + H2O =>
5 H2SO3 + 2 NaMnO4 = 2 MnSO4 + 2 H2SO4 + Na2SO4 + 3 H2O
KClO3 + P4 = PO + KCl =>
4 KClO3 + 3 P4 = 12 PO + 4 KCl
Zn + H2O + NH3 = Zn[(NH3)4](OH)2 + H2 =>
Zn + 2 H2O + 4 NH3 = Zn[(NH3)4](OH)2 + H2
Ca5(Po4)3F + H2SO4 = Ca(H2Po4)2 + CaSO4 + HF =>
2 Ca5(Po4)3F + 7 H2SO4 = 3 Ca(H2Po4)2 + 7 CaSO4 + 2 HF
NaOH + NaClO + I5 = NaIO3 + NaCl + H2O =>
10 NaOH + 25 NaClO + 2 I5 = 10 NaIO3 + 25 NaCl + 5 H2O
CoCl2 + NH4{+} + OH{-} = Co(OH)2 + NH4Cl =>
CoCl2 + 2 NH4{+} + 2 OH{-} = Co(OH)2 + 2 NH4Cl
Pb + BiCl3 = PbCl4 + Bi =>
3 Pb + 4 BiCl3 = 3 PbCl4 + 4 Bi
BaNO3 + NaHCO3 = NaNO3 + BaHCO3 =>
BaNO3 + NaHCO3 = NaNO3 + BaHCO3
K2Cr2O7(s) + HBr(aq) = KBr(aq) + CrBr3(aq) + Br2(l) + H2O(l) =>
K2Cr2O7(s) + 14 HBr(aq) = 2 KBr(aq) + 2 CrBr3(aq) + 3 Br2(l) + 7 H2O(l)
C7H22 + O2 = CO2 + H2O =>
2 C7H22 + 25 O2 = 14 CO2 + 22 H2O
CH2Cl + NaOH = CH2O + NaCl + H2 =>
2 CH2Cl + 2 NaOH = 2 CH2O + 2 NaCl + H2
CH2OCu(OH)2 = HCOOHCuH2O =>
CH2OCu(OH)2 = HCOOHCuH2O
Ac(HO)3 = Ac2O3 + H2O =>
2 Ac(HO)3 = Ac2O3 + 3 H2O
HCl(aq) + Zn(s) = ZnCl(aq) + H2(g) =>
2 HCl(aq) + 2 Zn(s) = 2 ZnCl(aq) + H2(g)
Mg(OH)2 + (NH4)2SO4 = NH4OH + MgSO4 =>
Mg(OH)2 + (NH4)2SO4 = 2 NH4OH + MgSO4
CaO(s)H2O(l) = Ca(OH)2(aq) =>
CaO(s)H2O(l) = Ca(OH)2(aq)
KAlFeCN + Zn = KCN + ZnAlFe =>
KAlFeCN + Zn = KCN + ZnAlFe
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Cu{+} + e = Cu =>
Cu{+} + e = Cu
Al2(SO4)3 + H2O = AlOHSO4 + H2SO4 =>
Al2(SO4)3 + 2 H2O = 2 AlOHSO4 + H2SO4
K4Fe(CN)6 + HNO3 + CH3COOH = K3[Fe(CN)6] + CH3COOK + NO + H2O =>
3 K4Fe(CN)6 + HNO3 + 3 CH3COOH = 3 K3[Fe(CN)6] + 3 CH3COOK + NO + 2 H2O
HCIO + H2O2 = H2CO3 + HI =>
HCIO + H2O2 = H2CO3 + HI
K3PO4(aq) + Ca(OH)2(aq) = Ca3(PO4)2(s) + KOH(aq) =>
2 K3PO4(aq) + 3 Ca(OH)2(aq) = Ca3(PO4)2(s) + 6 KOH(aq)
NaN3 + NaMnO4 + H2O = N2 + MnO2 + NaOH =>
6 NaN3 + 2 NaMnO4 + 4 H2O = 9 N2 + 2 MnO2 + 8 NaOH
AlCl3 + MgBr2 = MgCl2 + AlBr3 =>
2 AlCl3 + 3 MgBr2 = 3 MgCl2 + 2 AlBr3
HNO3 + H2S = NO + S8 + H2O =>
16 HNO3 + 24 H2S = 16 NO + 3 S8 + 32 H2O
CuMgCl2 = CuCl2Mg =>
CuMgCl2 = CuCl2Mg
C4H5 + O2 = C2O4 + H =>
C4H5 + 4 O2 = 2 C2O4 + 5 H
Cl2O3 + KMnO4 + H2SO4 = Cl2O5 + MnSO4 + K2SO4 + H2O =>
5 Cl2O3 + 4 KMnO4 + 6 H2SO4 = 5 Cl2O5 + 4 MnSO4 + 2 K2SO4 + 6 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Zn(l) + Fe2O3(l) = Fe(l) + ZnO(s) =>
3 Zn(l) + Fe2O3(l) = 2 Fe(l) + 3 ZnO(s)
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