| Équations équilibrées la veille |
CuS + 8 HNO2 = CuSO4 + 8 NO + 4 H2O
NaBr + NaOH = OHBr + Na =>
NaBr + NaOH = OHBr + 2 Na
[Co(CN)6]{4-} + O2 + H2O = [Co(CN)6]{3-} + OH{-} =>
4[Co(CN)6]{4-} + O2 + 2 H2O = 4[Co(CN)6]{3-} + 4 OH{-}
CuSO4(aq) + H2S(aq) = CuS(s) + H2SO4(aq) =>
CuSO4(aq) + H2S(aq) = CuS(s) + H2SO4(aq)
NaOH + SH = SOH + NaH =>
NaOH + SH = SOH + NaH
CuSO4(aq) + KI(aq) = CuI(s) + KI3(aq) + K2SO4(aq) =>
2 CuSO4(aq) + 5 KI(aq) = 2 CuI(s) + KI3(aq) + 2 K2SO4(aq)
Al + NaOH = Na3Al2O3 + H3 =>
2 Al + 3 NaOH = Na3Al2O3 + H3
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
BaNO3 + KPO4 = KNO3 + BaPO4 =>
BaNO3 + KPO4 = KNO3 + BaPO4
PbO + (NH3) = H2O + N2 + Pb =>
3 PbO + 2(NH3) = 3 H2O + N2 + 3 Pb
CaSO3 + Na3N = Na2SO3 + Ca3N2 =>
3 CaSO3 + 2 Na3N = 3 Na2SO3 + Ca3N2
CuSO4*5H2O + KI = CuI + I2 + K2SO4 + H2O =>
2 CuSO4*5H2O + 4 KI = 2 CuI + I2 + 2 K2SO4 + 10 H2O
CuSO4(aq) + NH4Cl(aq) = CuCl(aq) + NH4SO4(aq) =>
CuSO4(aq) + NH4Cl(aq) = CuCl(aq) + NH4SO4(aq)
Cl2 + KOH = KCl + KClO3 + H2O =>
3 Cl2 + 6 KOH = 5 KCl + KClO3 + 3 H2O
CuSO4 + NH3 = Cu(NH3)4SO4 =>
CuSO4 + 4 NH3 = Cu(NH3)4SO4
Hg2 + HF = HgF2 + H2 =>
Hg2 + 4 HF = 2 HgF2 + 2 H2
CuSO4 + NH3 = CuNH3 + SO4 =>
CuSO4 + NH3 = CuNH3 + SO4
CuSO4 + NaCl + Na2SO3 + H2O = CuCl + Na2SO4 + H2SO4 =>
2 CuSO4 + 2 NaCl + Na2SO3 + H2O = 2 CuCl + 2 Na2SO4 + H2SO4
Fe(OH)2 + NaClO + H2O = Fe(OH)3 + NaCl =>
2 Fe(OH)2 + NaClO + H2O = 2 Fe(OH)3 + NaCl
F(g) + H2O(g) = HF(g) + O2(g) =>
4 F(g) + 2 H2O(g) = 4 HF(g) + O2(g)
I2(g) + HCl(g) = HI(g) + Cl2(g) =>
I2(g) + 2 HCl(g) = 2 HI(g) + Cl2(g)
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
F2(g) + NaI(aq) = FI + Na =>
F2(g) + 2 NaI(aq) = 2 FI + 2 Na
F2 + PbCl4 = PbF + Cl2 =>
F2 + 2 PbCl4 = 2 PbF + 4 Cl2
Cu{2} + NH4OH = Cu(NH3)4{+2} + H2O =>
Cu{2} + 4 NH4OH = Cu(NH3)4{+2} + 4 H2O
C8 + O2 = CO2 = H2O =>
C8 + 8 O2 = 8 CO2
K(s) + Co2{+} = Co + K{+} =>
K(s) + Co2{+} = 2 Co + K{+}
Al(SO)4 + Ca(OH)2 = Al(OH)2 + Ca(SO)4 =>
Al(SO)4 + Ca(OH)2 = Al(OH)2 + Ca(SO)4
Ti(C2O4)2 + NaOH = TiO2 + Na2C2O4 + H2O =>
Ti(C2O4)2 + 4 NaOH = TiO2 + 2 Na2C2O4 + 2 H2O
F2 = F =>
F2 = 2 F
CH3COOH + LiAlH4 + H2O = C2H5OH + LiOH + Al(OH)3 =>
2 CH3COOH + LiAlH4 + 2 H2O = 2 C2H5OH + LiOH + Al(OH)3
Cu + KNO3 + HCl = KCl + CuCl2 + NO + H2O =>
3 Cu + 2 KNO3 + 8 HCl = 2 KCl + 3 CuCl2 + 2 NO + 4 H2O
Cr(OH)3 + NaOH = NaCrO2 + H2O =>
Cr(OH)3 + NaOH = NaCrO2 + 2 H2O
Fe(CN)2 + KCN = K4[Fe(CN)6] =>
Fe(CN)2 + 4 KCN = K4[Fe(CN)6]
CO + I2 + H2O = HI + H2CO3 =>
CO + I2 + 2 H2O = 2 HI + H2CO3
O2 + KCl + MnO2 = Mn(ClO3)2 + K2O =>
5 O2 + 4 KCl + 2 MnO2 = 2 Mn(ClO3)2 + 2 K2O
K2S + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O =>
3 K2S + 4 K2Cr2O7 + 16 H2SO4 = 4 Cr2(SO4)3 + 7 K2SO4 + 16 H2O
(Co(NO2)6){4-} + NO2{-} + H{+} = (Co(NO2)6){3-} + NO + H2O =>
(Co(NO2)6){4-} + NO2{-} + 2 H{+} = (Co(NO2)6){3-} + NO + H2O
Fe(CN)3 + KCN = K3[Fe(CN)6] =>
Fe(CN)3 + 3 KCN = K3[Fe(CN)6]
Fe(NO3)2 + H2O = Fe(OH)NO3 + HNO3 =>
Fe(NO3)2 + H2O = Fe(OH)NO3 + HNO3
OH{-} + H{+} = H2O(l) =>
OH{-} + H{+} = H2O(l)
AuCl2 + Al = AlCl3 + Au =>
3 AuCl2 + 2 Al = 2 AlCl3 + 3 Au
Fe(C2H3O2)3 + K2CO3 = KC2H3O2 + Fe2(CO3)3 =>
2 Fe(C2H3O2)3 + 3 K2CO3 = 6 KC2H3O2 + Fe2(CO3)3
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
(OH{-}) + H{+} = H2O =>
(OH{-}) + H{+} = H2O
Fe(NO3)2 + H2O = FeOHNO3 + HNO3 =>
Fe(NO3)2 + H2O = FeOHNO3 + HNO3
Fe2 + AgNO3 = Fe(NO3)3 + Ag =>
Fe2 + 6 AgNO3 = 2 Fe(NO3)3 + 6 Ag
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
FeCl2 + K2Cr2O7 + HCl = KCl + CrCl3 + H2O + FeCl3 =>
6 FeCl2 + K2Cr2O7 + 14 HCl = 2 KCl + 2 CrCl3 + 7 H2O + 6 FeCl3
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