| Équations équilibrées la veille |
16 Na2S2O4 + 4 K2Cr2O7 + 9 H2SO4 = 16 Na2SO4 + 4 K2SO4 + 4 Cr2(SO4)3 + 9 H2S
(NH4)2CO3 + Mg2(SO4)2 = (NH4)2SO4 + MgCO3 =>
2(NH4)2CO3 + Mg2(SO4)2 = 2(NH4)2SO4 + 2 MgCO3
N2 + O3 = N2O5 =>
3 N2 + 5 O3 = 3 N2O5
SiO2 + NaOH = Na2SiO3 + H2O =>
SiO2 + 2 NaOH = Na2SiO3 + H2O
LiOH + SO2 = Li2SO3 + H2O =>
2 LiOH + SO2 = Li2SO3 + H2O
Ba(C2H3O2)2 + Al2(SO4)3 = Ba(SO4) + Al(C2H3O2)3 =>
3 Ba(C2H3O2)2 + Al2(SO4)3 = 3 Ba(SO4) + 2 Al(C2H3O2)3
[Co(SCN)2(H2O)4] + H2O = [Co(SCN)2(H2O)8] =>
[Co(SCN)2(H2O)4] + 4 H2O = [Co(SCN)2(H2O)8]
Li + Si = Li2Si =>
2 Li + Si = Li2Si
V + N2 = V2N5 =>
4 V + 5 N2 = 2 V2N5
(NH4)2(SO4) + Al(OH)3 = NH3 + H2O + Al2(SO4)3 =>
3(NH4)2(SO4) + 2 Al(OH)3 = 6 NH3 + 6 H2O + Al2(SO4)3
C2H5Br + C6H6 = C6H5Br + C2H6 =>
C2H5Br + C6H6 = C6H5Br + C2H6
Pb(ClO4)2 = PbCl2 + O2 =>
Pb(ClO4)2 = PbCl2 + 4 O2
FeSO4 + Na2S = FeS + Na2SO4 =>
FeSO4 + Na2S = FeS + Na2SO4
Ba(NO3)2(aq) + (NH4)2CO3(aq) = BaCO3 + NH4NO3 =>
Ba(NO3)2(aq) + (NH4)2CO3(aq) = BaCO3 + 2 NH4NO3
CaS + C = CaC2 + S =>
CaS + 2 C = CaC2 + S
Al(NO3)3 + KI = AlI3 + KNO3 =>
Al(NO3)3 + 3 KI = AlI3 + 3 KNO3
PbCO3 + HCl = PbCl2 + H2CO3 =>
PbCO3 + 2 HCl = PbCl2 + H2CO3
Al(NO3)3 + KI = AlI3 + KNO3 =>
Al(NO3)3 + 3 KI = AlI3 + 3 KNO3
Sn + H{+} + H3AsO4 = Sn{2+} + H3AsO3 + H2O =>
Sn + 2 H{+} + H3AsO4 = Sn{2+} + H3AsO3 + H2O
Na2S2O4 + K2Cr2O7 + H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + H2O =>
Na2S2O4 + K2Cr2O7 + 3 H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + 3 H2O
Pb(ClO4)2 = PbO + Cl2 + O2 =>
2 Pb(ClO4)2 = 2 PbO + 2 Cl2 + 7 O2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Ba(NO3)2(aq) + (NH4)2CO3(aq) = BaCO3(s) + NH4NO3(aq) =>
Ba(NO3)2(aq) + (NH4)2CO3(aq) = BaCO3(s) + 2 NH4NO3(aq)
N2 + Ce2 = NCe =>
N2 + Ce2 = 2 NCe
C9H8 + Cr2O7{-2} + H3O{+} = C9H8O4 + Cr{+3} + H2O =>
3 C9H8 + 4 Cr2O7{-2} + 32 H3O{+} = 3 C9H8O4 + 8 Cr{+3} + 48 H2O
FeSO4 + Br2 + KSCN = Fe(SCN)3 + KBr + K2SO4 =>
2 FeSO4 + Br2 + 6 KSCN = 2 Fe(SCN)3 + 2 KBr + 2 K2SO4
Na2S2O4 + K2Cr2O7 + H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + H2O =>
Na2S2O4 + K2Cr2O7 + 3 H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + 3 H2O
K(g) + Cl2(g) = KCl(g) =>
2 K(g) + Cl2(g) = 2 KCl(g)
Fe(OH)3 + Cl2 = FeCl3 + H2O + O2 =>
4 Fe(OH)3 + 6 Cl2 = 4 FeCl3 + 6 H2O + 3 O2
C17H33COONa + Fe2(SO4)3 = (C17H33COO)3Fe + Na2SO4 =>
6 C17H33COONa + Fe2(SO4)3 = 2(C17H33COO)3Fe + 3 Na2SO4
ZnCl2 + Hg = HgCl + Zn =>
ZnCl2 + 2 Hg = 2 HgCl + Zn
Na2S2O4 + K2Cr2O7 + H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + H2S =>
16 Na2S2O4 + 4 K2Cr2O7 + 9 H2SO4 = 16 Na2SO4 + 4 K2SO4 + 4 Cr2(SO4)3 + 9 H2S
NaSCN + H2SO4 = HSCN + Na2SO4 =>
2 NaSCN + H2SO4 = 2 HSCN + Na2SO4
MnO4{-} + Cl{-} + H{+} = Mn{2+} + Cl2 + H2O =>
2 MnO4{-} + 10 Cl{-} + 16 H{+} = 2 Mn{2+} + 5 Cl2 + 8 H2O
Li + Si = Li2Si =>
2 Li + Si = Li2Si
Na2S2O4 + K2Cr2O7 + H2SO4 = Na2SO4 + K2SO4 + Cr2(SO4)3 + H2S =>
16 Na2S2O4 + 4 K2Cr2O7 + 9 H2SO4 = 16 Na2SO4 + 4 K2SO4 + 4 Cr2(SO4)3 + 9 H2S
Fe(OH)3 + Cl2 = FeCl3 + OH =>
2 Fe(OH)3 + 3 Cl2 = 2 FeCl3 + 6 OH
Pb(No3)2(ac) + Na2S(ac) = PbS(s) + NaNo3(ac) =>
Pb(No3)2(ac) + Na2S(ac) = PbS(s) + 2 NaNo3(ac)
Li + Si = Li4Si =>
4 Li + Si = Li4Si
Au + HNO3 = AuNO3 + H2 =>
2 Au + 2 HNO3 = 2 AuNO3 + H2
Fe(OH)3 + Cl2 = FeCl3 + OH =>
2 Fe(OH)3 + 3 Cl2 = 2 FeCl3 + 6 OH
MnO4{-} + I{-} + OH{-} = MnO4{2-} + IO3{-} + H2O =>
6 MnO4{-} + I{-} + 6 OH{-} = 6 MnO4{2-} + IO3{-} + 3 H2O
Ca + ClO4 = CaClO4 =>
Ca + ClO4 = CaClO4
H2PO4{-} + NaOH = NaHPO4{-} + H2O =>
H2PO4{-} + NaOH = NaHPO4{-} + H2O
Na2SO4 + Zn = ZnSO4 + Na2 =>
Na2SO4 + Zn = ZnSO4 + Na2
Al(NO3)3 + KI = AlI3 + KNO3 =>
Al(NO3)3 + 3 KI = AlI3 + 3 KNO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Zn(NO3)2 + NH3 + H2O = Zn + NH4NO3 =>
4 Zn(NO3)2 + 10 NH3 + 3 H2O = 4 Zn + 9 NH4NO3
Li + Si = LiSi =>
Li + Si = LiSi
Fe(OH)3 + Cl2 = FeCl3 + H2O + O2 =>
4 Fe(OH)3 + 6 Cl2 = 4 FeCl3 + 6 H2O + 3 O2
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