| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 K + O2 = 2 K2O
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
K2Cr2O7 + H2(SO4) + C2H5(OH) = Cr2(SO4)3 + K2(SO4) + CH3COOH + H2O =>
2 K2Cr2O7 + 8 H2(SO4) + 3 C2H5(OH) = 2 Cr2(SO4)3 + 2 K2(SO4) + 3 CH3COOH + 11 H2O
H2 + (SO4)2 = H(SO4) =>
H2 + (SO4)2 = 2 H(SO4)
Zn(NO3)2NH4OH = Zn(OH)NH4(NO3)2 =>
Zn(NO3)2NH4OH = Zn(OH)NH4(NO3)2
K2Cr2O7 + KI + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O + I2 =>
K2Cr2O7 + 6 KI + 7 H2SO4 = Cr2(SO4)3 + 4 K2SO4 + 7 H2O + 3 I2
Pb(C2H3O2)2 = Pb + C2H3O2 =>
Pb(C2H3O2)2 = Pb + 2 C2H3O2
(NH4)2Cr2O7 + AgNO3 = (Ag)2Cr2O7 + (NH4)(NO3) =>
(NH4)2Cr2O7 + 2 AgNO3 = (Ag)2Cr2O7 + 2(NH4)(NO3)
SO2 + NaOH + Br2 = Na2SO4 + BrNa + H2O =>
SO2 + 4 NaOH + Br2 = Na2SO4 + 2 BrNa + 2 H2O
AgNO3 + C2H5NS = NSNO3 + AgC2H5 =>
AgNO3 + C2H5NS = NSNO3 + AgC2H5
C4H12O14 = C4O8H12O6 =>
C4H12O14 = C4O8H12O6
Ca2 = Ca0 =>
Ca2 = 2 Ca0
MnO4{-} + S2O3{2-} + H{+} = SO4{-} + Mn{2+} + H2O =>
2 MnO4{-} + S2O3{2-} + 6 H{+} = 2 SO4{-} + 2 Mn{2+} + 3 H2O
Zn(OH)2 + N2O5 = Zn(NO3)2 + H2O =>
Zn(OH)2 + N2O5 = Zn(NO3)2 + H2O
K[Al(OH)4] + Na2SO4 = Al2(SO4)3 + KOH + NaOH =>
2 K[Al(OH)4] + 3 Na2SO4 = Al2(SO4)3 + 2 KOH + 6 NaOH
Al3 + H2O = Al(OH)4 + H2 =>
Al3 + 12 H2O = 3 Al(OH)4 + 6 H2
Mg(OH)2 + H2SO4 = MgSO4 + (H2O) =>
Mg(OH)2 + H2SO4 = MgSO4 + 2(H2O)
Fe(oh)3 + O2 + H2O = Fe(OH)2 =>
2 Fe(oh)3 + 3 O2 + 6 H2O = 6 Fe(OH)2
Na3(IrCl6) + NaOH + H2O + O2 = Ir(OH)4 + NaCl =>
4 Na3(IrCl6) + 12 NaOH + 2 H2O + O2 = 4 Ir(OH)4 + 24 NaCl
NaI + O2 = NaIO2 =>
NaI + O2 = NaIO2
SrO + H2O = SrOH + O2 =>
4 SrO + 2 H2O = 4 SrOH + O2
C7H5N + NaOH + H2O = NaC6H5CO2 + NH3 =>
C7H5N + NaOH + H2O = NaC6H5CO2 + NH3
FeSO4 + ZnNO3 = FeNO3 + ZnSO4 =>
FeSO4 + ZnNO3 = FeNO3 + ZnSO4
FeCl3 + KCO3 = Fe2(CO3)3 + KCl2 =>
2 FeCl3 + 3 KCO3 = Fe2(CO3)3 + 3 KCl2
C2H4 + HCI = C2H4CI2 =>
C2H4 + 4 HCI = 2 C2H4CI2
K2Cr2O7 + NaOH + H2O2 = Na3[Cr(OH)6] + KOH + O2 =>
2 K2Cr2O7 + 12 NaOH + 8 H2O2 = 4 Na3[Cr(OH)6] + 4 KOH + 7 O2
SO2 + Na2S = S2 + NaO =>
SO2 + Na2S = S2 + 2 NaO
Ca(OH)2(aq) + H2C2O4*2H2O(s) = CaC2O4(s) + H2O(l) =>
Ca(OH)2(aq) + H2C2O4*2H2O(s) = CaC2O4(s) + 4 H2O(l)
C6H12O6 + V2O5 + HCl = VOCl2 + H2O + CO2 =>
C6H12O6 + 12 V2O5 + 48 HCl = 24 VOCl2 + 30 H2O + 6 CO2
Mg3N2 + H2O = Mg(OH)2 + NH3 =>
Mg3N2 + 6 H2O = 3 Mg(OH)2 + 2 NH3
FeCl3 + NH4SCN = [Fe(SCN)]Cl2 + NH4Cl =>
FeCl3 + NH4SCN = [Fe(SCN)]Cl2 + NH4Cl
CuCl2 + AgNO3 = AgCl + Cu(NO3)2 =>
CuCl2 + 2 AgNO3 = 2 AgCl + Cu(NO3)2
Ni2O3 = Ni + O2 =>
2 Ni2O3 = 4 Ni + 3 O2
FeS + Cr2O7{2-} + H{+} = S2O3{2-} + Cr{3+} + Fe{3+} + H2O =>
6 FeS + 5 Cr2O7{2-} + 52 H{+} = 3 S2O3{2-} + 10 Cr{3+} + 6 Fe{3+} + 26 H2O
K2O(s) + H2O = KOH =>
K2O(s) + H2O = 2 KOH
Al2(SO4)3 + (Na3)PO4 = (Na3)2(SO4)3 + AlPO4 =>
Al2(SO4)3 + 2(Na3)PO4 = (Na3)2(SO4)3 + 2 AlPO4
C2H6O + O2 = CO2 + H2O =>
C2H6O + 3 O2 = 2 CO2 + 3 H2O
P2Cl4 + O2 = PO4 + Cl2 =>
P2Cl4 + 4 O2 = 2 PO4 + 2 Cl2
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
HI + MnO = MnI + I2 + H2O =>
4 HI + 2 MnO = 2 MnI + I2 + 2 H2O
Zn + CuClO3 = Cu + ZnClO3 =>
Zn + CuClO3 = Cu + ZnClO3
Li2S(aq) + HNO2(aq) = LiNO2(aq) + H2S(g) =>
Li2S(aq) + 2 HNO2(aq) = 2 LiNO2(aq) + H2S(g)
CuNo2 + NaOH = Cu(OH)2 + NaNo =>
CuNo2 + 2 NaOH = Cu(OH)2 + 2 NaNo
Co(ClO3)2 = CoCl2 + O =>
Co(ClO3)2 = CoCl2 + 6 O
Sb2(CO3)5 + HCl = SbCl5 + H2O + CO2 =>
Sb2(CO3)5 + 10 HCl = 2 SbCl5 + 5 H2O + 5 CO2
C2H3O2 + NaCO3 = CO2 + NaC2H3O2 + H2O =>
9 C2H3O2 + 7 NaCO3 = 11 CO2 + 7 NaC2H3O2 + 3 H2O
Cr(NO3)3 + Ca(OH)2 = Ca(NO3)2 + Cr(OH)3 =>
2 Cr(NO3)3 + 3 Ca(OH)2 = 3 Ca(NO3)2 + 2 Cr(OH)3
[Cr(N2H4CO)6]4[Cr(CN)6]3 + KMn2O4 + H2SO4 = K2Cr2O7 + MnSO4 + CO2 + KNO3 + K2SO4 + H2O =>
2[Cr(N2H4CO)6]4[Cr(CN)6]3 + 392 KMn2O4 + 907 H2SO4 = 6.9999999999999K2Cr2O7 + 784 MnSO4 + 84 CO2 + 132 KNO3 + 123 K2SO4 + 1003 H2O
CH3COONaNaOH = Na2CO3CH4 =>
CH3COONaNaOH = Na2CO3CH4
NaOH + Ni(NO3)2 = Ni(OH)2 + NaNO3 =>
2 NaOH + Ni(NO3)2 = Ni(OH)2 + 2 NaNO3
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