| Équations équilibrées la veille |
2 Al + 3 CrO = Al2O3 + 3 Cr
K2Cr2O7 + H2O = H2Cr2O7 + K2O =>
K2Cr2O7 + H2O = H2Cr2O7 + K2O
Ca(NO3)2 + (NH4)2C2O4 = CaC2O4 + NH4NO3 =>
Ca(NO3)2 + (NH4)2C2O4 = CaC2O4 + 2 NH4NO3
C2H5OH + O3 = CO2 + H2O =>
C2H5OH + 2 O3 = 2 CO2 + 3 H2O
Ba(OH)2 + NH4NO3 = NH3 + Ba(NO3)2 + H2O =>
Ba(OH)2 + 2 NH4NO3 = 2 NH3 + Ba(NO3)2 + 2 H2O
K2Cr2O7 + KI + H2SO4 = K2SO4 + Cr2SO4I3 + I2 + H2O =>
2 K2Cr2O7 + 20 KI + 14 H2SO4 = 12 K2SO4 + 2 Cr2SO4I3 + 7 I2 + 14 H2O
FeCl2 + K4[Fe(CN)6] = Fe4[Fe(CN)6]2 + KCl =>
4 FeCl2 + 2 K4[Fe(CN)6] = Fe4[Fe(CN)6]2 + 8 KCl
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
NaCH3CO2 + H2O = NaOH + CH3COOH =>
NaCH3CO2 + H2O = NaOH + CH3COOH
CaS + HAt = CaAt2 + H2S =>
CaS + 2 HAt = CaAt2 + H2S
Al + F{-} + H3O{+} = AlF3 + H2O + H2 =>
2 Al + 6 F{-} + 6 H3O{+} = 2 AlF3 + 6 H2O + 3 H2
Ai + NaOH + H2O = NaAi(OH)4 + H2 =>
2 Ai + 2 NaOH + 6 H2O = 2 NaAi(OH)4 + 3 H2
Co + O + Na = CoONa =>
Co + O + Na = CoONa
Fe2(ClO3)2 = FeCl + O3 =>
Fe2(ClO3)2 = 2 FeCl + 2 O3
C3H6O2 + Mg = (C3H5O2)2Mg + H2 =>
2 C3H6O2 + Mg = (C3H5O2)2Mg + H2
KCl(s) + H2SO4(aq) = K2SO4(aq) + HCl(g) =>
2 KCl(s) + H2SO4(aq) = K2SO4(aq) + 2 HCl(g)
H2O + CH4 = H + CO2 =>
2 H2O + CH4 = 8 H + CO2
NH4ClO4 + KNO3 = N2 + KCl + O2 + H2O =>
2 NH4ClO4 + 2 KNO3 = 2 N2 + 2 KCl + 5 O2 + 4 H2O
X4 + Y = XY4 =>
X4 + 16 Y = 4 XY4
H{3}PO{4} = H{4}P2}O{7}+H{2}O =>
2 H{3}PO{4} = H{4}P2}O{7}+H{2}O
H4C2O2 + BaO2H2 = H2O + Ba(C2H3O2)2 =>
2 H4C2O2 + BaO2H2 = 2 H2O + Ba(C2H3O2)2
Cr2O7{-2} + H{+} + Cu = Cr{+3} + H2O + Cu{+2} =>
Cr2O7{-2} + 14 H{+} + 3 Cu = 2 Cr{+3} + 7 H2O + 3 Cu{+2}
P4 + I4 = PI4 =>
P4 + 4 I4 = 4 PI4
HCl + Na2(CO3) = H2O + NaCl + CO2 =>
2 HCl + Na2(CO3) = H2O + 2 NaCl + CO2
SiS2 + H2O = Si(OH)4 + H2S =>
SiS2 + 4 H2O = Si(OH)4 + 2 H2S
KMnO4 + KCl + H2SO4 = MnSO4 + K2SO4 + Cl + H2O =>
KMnO4 + 5 KCl + 4 H2SO4 = MnSO4 + 3 K2SO4 + 5 Cl + 4 H2O
Na{+} + Cl{-} = NaCl =>
Na{+} + Cl{-} = NaCl
(CH3)NH2 + O2 = H2O + CO2 + N2 =>
4(CH3)NH2 + 9 O2 = 10 H2O + 4 CO2 + 2 N2
C5H6O4N5SNa + H2O = CO2 + CH4 + NH3 + H2S + NaHCO3 =>
4 C5H6O4N5SNa + 26 H2O = 15 CO2 + CH4 + 20 NH3 + 4 H2S + 4 NaHCO3
CrN + HCl = CrCl + NH =>
CrN + HCl = CrCl + NH
Fe(OH)3 + Na2SO4 = Fe(OH)SO4 + NaOH =>
Fe(OH)3 + Na2SO4 = Fe(OH)SO4 + 2 NaOH
KCrO = KCr + O =>
KCrO = KCr + O
Na2CO3(s) + H2SO4(aq) = Na2SO4(aq) + H2O(g) + CO2(g) =>
Na2CO3(s) + H2SO4(aq) = Na2SO4(aq) + H2O(g) + CO2(g)
Zn(SO4)2 + BaCl = BaSO4 + ZnCl2 =>
Zn(SO4)2 + 2 BaCl = 2 BaSO4 + ZnCl2
Fe + CO2 = Fe2O3 + CO =>
2 Fe + 3 CO2 = Fe2O3 + 3 CO
Br2(g) + KI(aq) = I2(aq) + KBr(aq) =>
Br2(g) + 2 KI(aq) = I2(aq) + 2 KBr(aq)
(CH3COO)2Zn + H2S = ZnS + CH3COOH =>
(CH3COO)2Zn + H2S = ZnS + 2 CH3COOH
Fe + ClO = Fe(ClO)2 =>
Fe + 2 ClO = Fe(ClO)2
KIO3 + H2O2 + H2SO4 = K2SO4 + I2 + O2H2O =>
2 KIO3 + 3 H2O2 + H2SO4 = K2SO4 + I2 + 4 O2H2O
Na2CO3 + Cr(NO3)3 = NaNO3 + Cr2(CO3)3 =>
3 Na2CO3 + 2 Cr(NO3)3 = 6 NaNO3 + Cr2(CO3)3
SiO2 + HNO3 = SiO(NO3)2 + H2O =>
SiO2 + 2 HNO3 = SiO(NO3)2 + H2O
NO2 + NaOH = Na2NO3 + H2O =>
NO2 + 2 NaOH = Na2NO3 + H2O
NaH2PO4 + Ca(OH)2 = Ca3(PO4)2 + NaOH + H2O =>
2 NaH2PO4 + 3 Ca(OH)2 = Ca3(PO4)2 + 2 NaOH + 4 H2O
AgCl + SnCl2 = Ag + SnCl4 =>
2 AgCl + SnCl2 = 2 Ag + SnCl4
Co(NO3)2 + Na2SO4 = CoSO4 + NaNO3 =>
Co(NO3)2 + Na2SO4 = CoSO4 + 2 NaNO3
C5H10O2 + NaOH = C2H3NaO2 + C3H8O =>
C5H10O2 + NaOH = C2H3NaO2 + C3H8O
CaS + SO2 + H2O = CaSO4 + H2S =>
3 CaS + 4 SO2 + 4 H2O = 3 CaSO4 + 4 H2S
KMnO4 + H2SO4 + KBr = K2SO4 + Br2 + MnO + H2O =>
2 KMnO4 + 6 H2SO4 + 10 KBr = 6 K2SO4 + 5 Br2 + 2 MnO + 6 H2O
AlBr3 + Mg(OH)2 = Al(OH)3 + (MgBr2) =>
2 AlBr3 + 3 Mg(OH)2 = 2 Al(OH)3 + 3(MgBr2)
N2O4 + H2O = HNO3 + NO =>
3 N2O4 + 2 H2O = 4 HNO3 + 2 NO
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