Équations équilibrées la veille |
3 C2H4O + Cr2O7{2-} + 8 H{+} = 3 C2H4O2 + 2 Cr{3+} + 4 H2O
AXY3(s) = AXY2(g) + Y2(l) =>
2 AXY3(s) = 2 AXY2(g) + Y2(l)
CH3Br + H2 = CH4 + Br =>
2 CH3Br + H2 = 2 CH4 + 2 Br
NaHO3 + CH3OOH = CH3COONa + CO2 + H2O =>
NaHO3 + 3 CH3OOH = CH3COONa + CO2 + 5 H2O
Al2Si2O7 + SiO2 + Na2SiO3 = NaAlSi2O6 =>
Al2Si2O7 + SiO2 + Na2SiO3 = 2 NaAlSi2O6
PbCl2 + AgNO3 = Pb(NO3)2 + AgCl =>
PbCl2 + 2 AgNO3 = Pb(NO3)2 + 2 AgCl
Cl2 + NaBr = NaCl + Br2 =>
Cl2 + 2 NaBr = 2 NaCl + Br2
NaClO3 + Na2SO3 = Na2SO4 + NaCl =>
NaClO3 + 3 Na2SO3 = 3 Na2SO4 + NaCl
CaCO3 + Cl2 = CO3 + CaCl2 =>
CaCO3 + Cl2 = CO3 + CaCl2
Ca(ClO3)2 + H2CO3 = CaCO3 + HClO3 =>
Ca(ClO3)2 + H2CO3 = CaCO3 + 2 HClO3
As2S3 + HClO3 = AsO4 + S + HCl =>
3 As2S3 + 8 HClO3 = 6 AsO4 + 9 S + 8 HCl
Fe(SO4) + HNO3 + H2SO4 = Fe2(SO4)3 + N2O + H2O =>
8 Fe(SO4) + 2 HNO3 + 4 H2SO4 = 4 Fe2(SO4)3 + N2O + 5 H2O
FeSO4 + K3[Fe(CN)6] = Fe4[Fe(CN)6]3 + K2SO4 + K =>
4 FeSO4 + 3 K3[Fe(CN)6] = Fe4[Fe(CN)6]3 + 4 K2SO4 + K
Mn(NO3)2 + Na3(PO4) = NaNO3 + Mn3(PO4)2 =>
3 Mn(NO3)2 + 2 Na3(PO4) = 6 NaNO3 + Mn3(PO4)2
KHSO4 + RbOH = RbSO4 + H2KO =>
KHSO4 + RbOH = RbSO4 + H2KO
Na3[Cr(OH)6] + NaOH + PbO2 = Na2CrO4 + H2O + Na2PbO2 =>
2 Na3[Cr(OH)6] + 4 NaOH + 3 PbO2 = 2 Na2CrO4 + 8 H2O + 3 Na2PbO2
TiO2 + H = H2O + TiO =>
TiO2 + 2 H = H2O + TiO
Mg(s) + AgNO3(aq) = Mg(NO3)2(aq) + Ag(aq) =>
Mg(s) + 2 AgNO3(aq) = Mg(NO3)2(aq) + 2 Ag(aq)
SiO + H2 = SiH3OH =>
SiO + 2 H2 = SiH3OH
IH + H2SO4 = H2S + I2 + H2O =>
8 IH + H2SO4 = H2S + 4 I2 + 4 H2O
Pb(CH3COO)2 + Na2Cr2O7 + NaOH = PbOPbCrO4 + CH3COONa + H2O =>
4 Pb(CH3COO)2 + Na2Cr2O7 + 6 NaOH = 2 PbOPbCrO4 + 8 CH3COONa + 3 H2O
H3C6H5O7 + NaOH = H2O + Na3C6H5O7 =>
H3C6H5O7 + 3 NaOH = 3 H2O + Na3C6H5O7
Bi(OH)3 + Na2[Sn(OH)4] = Bi + [Sn(OH)6] + NaOH =>
4 Bi(OH)3 + 3 Na2[Sn(OH)4] = 4 Bi + 3[Sn(OH)6] + 6 NaOH
Mg(s) + FeCl3 = MgCl2 + Fe(s) =>
3 Mg(s) + 2 FeCl3 = 3 MgCl2 + 2 Fe(s)
Mg(OH)2 + H3A = H2O + Mg3A2 =>
3 Mg(OH)2 + 2 H3A = 6 H2O + Mg3A2
Zn + HCl = HCl2Zn + H2 =>
2 Zn + 4 HCl = 2 HCl2Zn + H2
MnO4{-} + AsO32{-} + H2O = MnO2 + AsO42{-} + OH{-} =>
20 MnO4{-} + 3 AsO32{-} + 10 H2O = 20 MnO2 + 3 AsO42{-} + 20 OH{-}
[Fe(H2O)5(SCN)]Cl2 + SnCl2 + H2O = SnO2 + [Fe(H2O)6]Cl2 + HSCN + HCl =>
2[Fe(H2O)5(SCN)]Cl2 + SnCl2 + 4 H2O = SnO2 + 2[Fe(H2O)6]Cl2 + 2 HSCN + 2 HCl
CrO3 + H2O + H2S = Cr(OH)3 + Cr2(SO4)3 =>
8 CrO3 + 6 H2O + 3 H2S = 6 Cr(OH)3 + Cr2(SO4)3
Cr2O3 + NaNO3 + NaOH = NaCrO4 + NaNO2 + H2O =>
Cr2O3 + 4 NaNO3 + 2 NaOH = 2 NaCrO4 + 4 NaNO2 + H2O
HNO3 + NaHCO3 = NaNO3 + H2O + CO2 =>
HNO3 + NaHCO3 = NaNO3 + H2O + CO2
Ca(HCO3)2 + Ca(OH)2 = CaCO3 + H2O =>
Ca(HCO3)2 + Ca(OH)2 = 2 CaCO3 + 2 H2O
In + O = InO =>
In + O = InO
Fe2{+} + BrO3{-} + H{+} = Fe{+} + Br{-} + H2O =>
6 Fe2{+} + BrO3{-} + 6 H{+} = 12 Fe{+} + Br{-} + 3 H2O
Ag + CrO4 = Ag2O3 + Cr =>
8 Ag + 3 CrO4 = 4 Ag2O3 + 3 Cr
Co(NO3)2 + NH4Cl = CoCl2 + NH4NO3 =>
Co(NO3)2 + 2 NH4Cl = CoCl2 + 2 NH4NO3
H2SO4 + S(OH)2 = S2O4 + H3O =>
2 H2SO4 + 4 S(OH)2 = 3 S2O4 + 4 H3O
C4H10O4 + HNO3 = C4H6N4O12 + H2O =>
C4H10O4 + 4 HNO3 = C4H6N4O12 + 4 H2O
MnO4 + Br2 = MnO2 + BrO3 =>
3 MnO4 + Br2 = 3 MnO2 + 2 BrO3
Al(CO3) + O2 = AlO3 + CO2 =>
Al(CO3) + O2 = AlO3 + CO2
Cu2S(s) + HNO3(ac) = Cu(NO3)2(ac) + CuSO4(ac) + NO2(g) + H2O(l) =>
Cu2S(s) + 12 HNO3(ac) = Cu(NO3)2(ac) + CuSO4(ac) + 10 NO2(g) + 6 H2O(l)
NO3 + Zn = ZnO + NO2 =>
NO3 + Zn = ZnO + NO2
Ba(NO3)2 + Mg + H2O = Ba(OH)2 + Mg(NO3)2 + NO2 =>
2 Ba(NO3)2 + Mg + 2 H2O = 2 Ba(OH)2 + Mg(NO3)2 + 2 NO2
BaO + Cl2 = BaCl2 + O =>
BaO + Cl2 = BaCl2 + O
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
HNO3(aq) + CaCO3(s) = H2CO3(s) + Ca(NO3)2(aq) =>
2 HNO3(aq) + CaCO3(s) = H2CO3(s) + Ca(NO3)2(aq)
H(NO3) + Ba(OH)2 = Ba(NO3)2 + HOH =>
2 H(NO3) + Ba(OH)2 = Ba(NO3)2 + 2 HOH
NaF + O = NaFO =>
NaF + O = NaFO
Co(OH)2 + HNO3 = CoNO3 + H + O =>
Co(OH)2 + HNO3 = CoNO3 + 3 H + 2 O
Na2CrO4 + KI + H2SO4 = I + Cr2(SO4)3 + Na2SO4 + K2SO4 + H2O =>
2 Na2CrO4 + 6 KI + 8 H2SO4 = 6 I + Cr2(SO4)3 + 2 Na2SO4 + 3 K2SO4 + 8 H2O
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