| Équations équilibrées la veille |
2 PbI2 = Pb2 + 4 I1
H4Si + O2 = SiO2 + H2O =>
H4Si + 2 O2 = SiO2 + 2 H2O
(d)CH3NH2(g) + O2(g) = CO2(g) + H2O(g) + N2(g) =>
4(d)CH3NH2(g) + 9 O2(g) = 4 CO2(g) + 10 H2O(g) + 2 N2(g)
RbNO2 + O2 = Rb(NO3) =>
2 RbNO2 + O2 = 2 Rb(NO3)
NaOH + H2F2 = NaF + H2O =>
2 NaOH + H2F2 = 2 NaF + 2 H2O
NaNO2(s) + NH4Cl(s) = N2(g) + NaCl(s) + H2O(l) =>
NaNO2(s) + NH4Cl(s) = N2(g) + NaCl(s) + 2 H2O(l)
Ag + Cu(NO3)2 = Ag(NO3)2 + Cu =>
Ag + Cu(NO3)2 = Ag(NO3)2 + Cu
N02 + H2O + O2 = HNO3 =>
2 N02 + 2 H2O + 5 O2 = 4 HNO3
Ni + V = Ni99V4 =>
99 Ni + 4 V = Ni99V4
K2CrO4 + Na2SO3 + HCl = KCl + Na2SO4 + CrCl2 + H2O =>
K2CrO4 + 2 Na2SO3 + 4 HCl = 2 KCl + 2 Na2SO4 + CrCl2 + 2 H2O
NO2 + NH2 = NOH3 + NO =>
3 NO2 + 3 NH2 = 2 NOH3 + 4 NO
NiCl2 + Ca = Ni + CaCl =>
NiCl2 + 2 Ca = Ni + 2 CaCl
NaCrO2 + PbO2 + NaOH = NaPbO2 + Na2CrO4 + H2O =>
NaCrO2 + 3 PbO2 + 4 NaOH = 3 NaPbO2 + Na2CrO4 + 2 H2O
Na2HPO4 + NaOH = Na3PO4 + H2O =>
Na2HPO4 + NaOH = Na3PO4 + H2O
[Co(NH3)6] + NO2 + Cl = [Co(NH3)5(ONO)]Cl2 + NH3 =>
[Co(NH3)6] + NO2 + 2 Cl = [Co(NH3)5(ONO)]Cl2 + NH3
(NH4)ClO4 = N2 + O2 + Cl2 + H2O =>
2(NH4)ClO4 = N2 + 2 O2 + Cl2 + 4 H2O
Fe + MnO4 + H2SO4 = FeSO4 + Mn + H2O =>
4 Fe + MnO4 + 4 H2SO4 = 4 FeSO4 + Mn + 4 H2O
Z + O2 = ZO =>
2 Z + O2 = 2 ZO
Na3[Al(OH)6] + CO2 = Al(OH)3 + H2O + Na2CO3 =>
2 Na3[Al(OH)6] + 3 CO2 = 2 Al(OH)3 + 3 H2O + 3 Na2CO3
AgNO3(aq) + CoCl2(aq) = AgCl2 + CoNO3 =>
AgNO3(aq) + CoCl2(aq) = AgCl2 + CoNO3
Co2Co3 = Co2 =>
2 Co2Co3 = 5 Co2
BCl3 + H2O = H3BO3 + HCl =>
BCl3 + 3 H2O = H3BO3 + 3 HCl
K2ClO3 = K + Cl2 + O2 =>
2 K2ClO3 = 4 K + Cl2 + 3 O2
H2(s) + I2(s) = HI(s) =>
H2(s) + I2(s) = 2 HI(s)
KMnO4 + K2S + H2O = MnO2 + KOH + S =>
2 KMnO4 + 3 K2S + 4 H2O = 2 MnO2 + 8 KOH + 3 S
N2 + F2 = NF3 =>
N2 + 3 F2 = 2 NF3
CH3COCH3 + H2 = CH3CO + CH4 =>
2 CH3COCH3 + H2 = 2 CH3CO + 2 CH4
MoS2 + O2 = Mo + SO2 =>
MoS2 + 2 O2 = Mo + 2 SO2
CN{-} + Cl2 + H2O = CNO{-} + HCl =>
CN{-} + Cl2 + H2O = CNO{-} + 2 HCl
Zn + AgNO3 = Ag + Zn1(NO3)2 =>
Zn + 2 AgNO3 = 2 Ag + Zn1(NO3)2
CuCl2 + H2CO3 = CuCO3 + HCl =>
CuCl2 + H2CO3 = CuCO3 + 2 HCl
K2CrO4 + FeSO4 + H2SO4 = Fe2(SO4)3 + CrSO4 + K2SO4 + H2O =>
K2CrO4 + 4 FeSO4 + 4 H2SO4 = 2 Fe2(SO4)3 + CrSO4 + K2SO4 + 4 H2O
Fe2 + Cl8 = Fe4Cl9 =>
16 Fe2 + 9 Cl8 = 8 Fe4Cl9
NaHCO3(aq) + Fe(NO3)3(aq) = Na2(NO3)3(aq) + Fe(HCO3)2(s) =>
2 NaHCO3(aq) + Fe(NO3)3(aq) = Na2(NO3)3(aq) + Fe(HCO3)2(s)
Cu(SO)4(aq) + NaOH(aq) = Cu(OH)2(s) + Na2(SO)4 =>
Cu(SO)4(aq) + 2 NaOH(aq) = Cu(OH)2(s) + Na2(SO)4
SiF4 = SiF + F2 =>
2 SiF4 = 2 SiF + 3 F2
Na2Cr2O7 + H2SO4 + H2O2 = CrO5 + Na2SO4 + H2O =>
Na2Cr2O7 + H2SO4 + 4 H2O2 = 2 CrO5 + Na2SO4 + 5 H2O
K2Cr2O7 + H2 + H2SO4 = Cr2(SO4)3 + KSO4 + H2O =>
K2Cr2O7 + 2 H2 + 5 H2SO4 = Cr2(SO4)3 + 2 KSO4 + 7 H2O
Ba + HOH = Ba(OH)2 + H2 =>
Ba + 2 HOH = Ba(OH)2 + H2
Cs2 + H2O = CsOH + H2 =>
Cs2 + 2 H2O = 2 CsOH + H2
KNO3 + H2SiO3 = KSiO3 + H2NO3 =>
KNO3 + H2SiO3 = KSiO3 + H2NO3
KOH + H3PO4 = K2(HPO4) + H2O =>
2 KOH + H3PO4 = K2(HPO4) + 2 H2O
HCO2 + NH3 = CONH2 + H2O =>
HCO2 + NH3 = CONH2 + H2O
Na2Cr2O7 + H2SO4 + H2O2 = H3CrO8 + H2O + Na2SO4 =>
Na2Cr2O7 + H2SO4 + 7 H2O2 = 2 H3CrO8 + 5 H2O + Na2SO4
Na2S + H3PO4 = NaH2PO4 + H2S =>
Na2S + 2 H3PO4 = 2 NaH2PO4 + H2S
P4O7 + NaOH = Na2HPO4 + Na2HPO3 + H2O =>
P4O7 + 8 NaOH = Na2HPO4 + 3 Na2HPO3 + 2 H2O
(NH4)2S + Cu(NO3)2 = (NH4)NO3 + CuS =>
(NH4)2S + Cu(NO3)2 = 2(NH4)NO3 + CuS
FeSO4 + H3Po4 = Fe3(Po4)2 + H2SO4 =>
3 FeSO4 + 2 H3Po4 = Fe3(Po4)2 + 3 H2SO4
CN{-} + Cl2 + H2O = CNO{-} + HCl =>
CN{-} + Cl2 + H2O = CNO{-} + 2 HCl
Hg2(NO3)2 + Pb = Pb(NO3)2 + Hg2 =>
Hg2(NO3)2 + Pb = Pb(NO3)2 + Hg2
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