| Équations équilibrées la veille |
Pb(CH3COO)2 + H2S = PbS + 2 CH3COOH
Al + CrO3 = Al2O3 + Cr =>
2 Al + CrO3 = Al2O3 + Cr
MnCl2 + KOH = Mn(OH)2 + KCl =>
MnCl2 + 2 KOH = Mn(OH)2 + 2 KCl
AgNO3 + KCSN = AgSCN + KNO3 =>
AgNO3 + KCSN = AgSCN + KNO3
HClO3 + HCl = H2O + Cl2 =>
HClO3 + 5 HCl = 3 H2O + 3 Cl2
AgNO3 + KCSN = AgSCN + KNO3 =>
AgNO3 + KCSN = AgSCN + KNO3
AlCl3 + KOH = KCl3 + AlOH =>
AlCl3 + KOH = KCl3 + AlOH
Al + CrO3 = Al2O3 + Cr =>
2 Al + CrO3 = Al2O3 + Cr
CrO7{-2} + NO2{-} + H{+} = Cr{+3} + NO3{-} + H2O =>
2 CrO7{-2} + 9 NO2{-} + 10 H{+} = 2 Cr{+3} + 9 NO3{-} + 5 H2O
FeBr2 + KCl = FeCl2 + KBr =>
FeBr2 + 2 KCl = FeCl2 + 2 KBr
N2 + H2 = NNH3 =>
2 N2 + 3 H2 = 2 NNH3
Fe2(SO4)3 + KCSN = K3Fe(SCN)6 + K2SO4 =>
Fe2(SO4)3 + 12 KCSN = 2 K3Fe(SCN)6 + 3 K2SO4
HClO3 + Ba(OH)2 = Ba(ClO3)2 + H2O =>
2 HClO3 + Ba(OH)2 = Ba(ClO3)2 + 2 H2O
CrO3 + Si = Cr + SiO2 =>
2 CrO3 + 3 Si = 2 Cr + 3 SiO2
C2H4O2 + O2 = CO2 + H2O4 =>
C2H4O2 + 5 O2 = 2 CO2 + 2 H2O4
Li + FeBr2 = LiBr + Fe =>
2 Li + FeBr2 = 2 LiBr + Fe
FeBr2 + Br2 = FeBr3 =>
2 FeBr2 + Br2 = 2 FeBr3
(NH4)2Cr2O7 = NH3 + H2O + Cr2O3 + O2 =>
2(NH4)2Cr2O7 = 4 NH3 + 2 H2O + 2 Cr2O3 + 3 O2
Cu + SCN = Cu(SCN)2 =>
Cu + 2 SCN = Cu(SCN)2
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
FeBr2 + K2CO3 = FeCO3 + KBr =>
FeBr2 + K2CO3 = FeCO3 + 2 KBr
Pb + HF = PbF2 + H2 =>
Pb + 2 HF = PbF2 + H2
Ba + CuBr = Cu + BaBr =>
Ba + CuBr = Cu + BaBr
NaCN(aq) + HCN(aq) = NaH(aq) + CN(aq) =>
NaCN(aq) + HCN(aq) = NaH(aq) + 2 CN(aq)
As2O3 + NO3{-} + OH{-} = AsO4{3-} + NO + H2O =>
3 As2O3 + 4 NO3{-} + 14 OH{-} = 6 AsO4{3-} + 4 NO + 7 H2O
AgNO3 + KCSN = AgSCN + KNO3 =>
AgNO3 + KCSN = AgSCN + KNO3
Fe(NH4)2(SO4)2*6H2O + H2C2O4 + K2C2O4 + H2O2 = K3Fe(C2O4)32H2O + (NH4)2SO4 + H2SO4 + H2O =>
2 Fe(NH4)2(SO4)2*6H2O + 61 H2C2O4 + 3 K2C2O4 + 59 H2O2 = 2 K3Fe(C2O4)32H2O + 2(NH4)2SO4 + 2 H2SO4 + 128 H2O
HCOOH + KOH = K(HCOO) + H2O =>
HCOOH + KOH = K(HCOO) + H2O
C2H6O + MnO4{-} + H{+} = C2H4O2 + Mn{2+} + H2O =>
5 C2H6O + 4 MnO4{-} + 12 H{+} = 5 C2H4O2 + 4 Mn{2+} + 11 H2O
Fe2O3(s) + C(g) = Fe(s) + CO(g) =>
Fe2O3(s) + 3 C(g) = 2 Fe(s) + 3 CO(g)
Mg + CuCl2 = MgCl2 + Cu =>
Mg + CuCl2 = MgCl2 + Cu
Pb(CH3COO)2 + KI = PbI2 + CH3COOK =>
Pb(CH3COO)2 + 2 KI = PbI2 + 2 CH3COOK
LiOH + Na2SO4 = Li2(SO4) + NaOH =>
2 LiOH + Na2SO4 = Li2(SO4) + 2 NaOH
FeSO4 + H2SO4 + HNO3 + (NH4)2SO4 = NH4Fe(SO4)2 + H2O =>
16 FeSO4 + 9 H2SO4 + 2 HNO3 + 7(NH4)2SO4 = 16 NH4Fe(SO4)2 + 6 H2O
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
C + H2 + O2 + N2 = C3H7NO2 =>
6 C + 7 H2 + 2 O2 + N2 = 2 C3H7NO2
ZnO2 + Al = ZnO + AlO =>
ZnO2 + Al = ZnO + AlO
Na2(C2O4) + Al(NO3)3 = Na(NO3) + Al2(C2O4)3 =>
3 Na2(C2O4) + 2 Al(NO3)3 = 6 Na(NO3) + Al2(C2O4)3
Ra + Cl2 = RaCl2 =>
Ra + Cl2 = RaCl2
(NH4)Cr2O7 + O2 = NH4O + CrO7 =>
(NH4)Cr2O7 + 4 O2 = NH4O + 2 CrO7
Fe2(SO4)3 + KCSN = K3Fe(SCN)6 + K2SO4 =>
Fe2(SO4)3 + 12 KCSN = 2 K3Fe(SCN)6 + 3 K2SO4
NaNO3 + Cu + H2SO4 = Cu(NO3)2 + NO2 + Na2SO4 + H2O =>
4 NaNO3 + Cu + 2 H2SO4 = Cu(NO3)2 + 2 NO2 + 2 Na2SO4 + 2 H2O
CaCO3 + C2H4O2 = Ca(C2H4O2)2 + H2O + CO2 =>
4 CaCO3 + 9 C2H4O2 = 4 Ca(C2H4O2)2 + 2 H2O + 6 CO2
Cu + Br2 = Cu2Br2 =>
2 Cu + Br2 = Cu2Br2
Ra + H2O = Ra(OH)2 + H2 =>
Ra + 2 H2O = Ra(OH)2 + H2
Cu2O + CH3COOH + O2 = Cu(CH3COO)2 + H2O =>
2 Cu2O + 8 CH3COOH + O2 = 4 Cu(CH3COO)2 + 4 H2O
Cr2(SO4)3 + KCl3 + KOH = K2CrO4 + KCl + K2SO4 + H2O =>
Cr2(SO4)3 + 3 KCl3 + 16 KOH = 2 K2CrO4 + 9 KCl + 3 K2SO4 + 8 H2O
AgNO3 + KCSN = AgSCN + KNO3 =>
AgNO3 + KCSN = AgSCN + KNO3
Ra + C = RaC2 =>
Ra + 2 C = RaC2
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