| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
A = A{+} + {-} =>
A = A{+} + e
CH3COCH3 + NaOH = CH3COONa + CH4 =>
CH3COCH3 + NaOH = CH3COONa + CH4
C2H5NO2 + CuCO3 + NaOH = C2HNO2Na2Cu + H2O + CO2 =>
C2H5NO2 + CuCO3 + 2 NaOH = C2HNO2Na2Cu + 3 H2O + CO2
BaCl + ZnSO4 = BaSO4 + ClZn =>
BaCl + ZnSO4 = BaSO4 + ClZn
V2O5 + Ca = V10 + CaO =>
5 V2O5 + 25 Ca = V10 + 25 CaO
PbH + H2O = PbO + H2 =>
2 PbH + 2 H2O = 2 PbO + 3 H2
K2CrO4 + NaNO2 + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O + NaNO3 =>
2 K2CrO4 + 3 NaNO2 + 5 H2SO4 = Cr2(SO4)3 + 2 K2SO4 + 5 H2O + 3 NaNO3
Ti2(CO3)4 + HCl = HOH + CO2 + TiCl4 =>
Ti2(CO3)4 + 8 HCl = 4 HOH + 4 CO2 + 2 TiCl4
Mn(SO4) + (NH4)(S2O8) + H2O = MnO2 + H2SO4 + (NH4)2(SO4) =>
3 Mn(SO4) + 2(NH4)(S2O8) + 6 H2O = 3 MnO2 + 6 H2SO4 + (NH4)2(SO4)
A2(SO4)3 = A2O3 + SO2 + O2 =>
2 A2(SO4)3 = 2 A2O3 + 6 SO2 + 3 O2
CaSO4 = Ca{+} + SO4{-} =>
CaSO4 = Ca{+} + SO4{-}
C3OH + CrO3 + H2SO4 = CO + Cr2(SO4)3 + H2O =>
6 C3OH + 10 CrO3 + 15 H2SO4 = 18 CO + 5 Cr2(SO4)3 + 18 H2O
NaOH + H3PO4 = NaOHPO4 + H =>
NaOH + H3PO4 = NaOHPO4 + 3 H
(C2H5)2O + I2 = C2H5I + O2 =>
2(C2H5)2O + 2 I2 = 4 C2H5I + O2
C3H7OH + H2SO4 = SO2 + H2O + CHO =>
2 C3H7OH + 9 H2SO4 = 9 SO2 + 14 H2O + 6 CHO
Al + Cu + HCl = CuCl2 + AlH =>
2 Al + Cu + 2 HCl = CuCl2 + 2 AlH
HOH + N2O5 = N2O6H2 =>
HOH + N2O5 = N2O6H2
CH3COOH + OH = H2O + CHOO =>
CH3COOH + 6 OH = 4 H2O + 2 CHOO
FeS(s) + HCl(aq) = H2S(g) + FeCl2(s) =>
FeS(s) + 2 HCl(aq) = H2S(g) + FeCl2(s)
NH4NO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + NH4OH(s) =>
2 NH4NO3(aq) + Ba(OH)2(aq) = Ba(NO3)2(aq) + 2 NH4OH(s)
K2[PtCl4] + KOH + PPh3 + C2H5OH = Pt(PPh3)4 + KCl + CH3CHO + H2O =>
K2[PtCl4] + 2 KOH + 4 PPh3 + C2H5OH = Pt(PPh3)4 + 4 KCl + CH3CHO + 2 H2O
Al4(SiO4)3 + Ca(C2H3O2)2 = Ca2SiO4 + Al(C2H3O2)3 =>
Al4(SiO4)3 + 6 Ca(C2H3O2)2 = 3 Ca2SiO4 + 4 Al(C2H3O2)3
Na2CrO4 + CrSO4 + H2O = Cr(OH)4 + Na2SO4 =>
Na2CrO4 + CrSO4 + 4 H2O = 2 Cr(OH)4 + Na2SO4
K2CrO5 + KI + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O + I2 =>
2 K2CrO5 + 10 KI + 10 H2SO4 = Cr2(SO4)3 + 7 K2SO4 + 10 H2O + 5 I2
C6H114 + O2 = CO + H2O =>
2 C6H114 + 63 O2 = 12 CO + 114 H2O
C4H2 + O2 = CO2 + H2O =>
2 C4H2 + 9 O2 = 8 CO2 + 2 H2O
Co(SO4) + KI + KIO3 + H2O = Co(OH)2 + K2(SO4) + I2 =>
3 Co(SO4) + 5 KI + KIO3 + 3 H2O = 3 Co(OH)2 + 3 K2(SO4) + 3 I2
NiCl2 + Na2CO3 = NaCl + NiCO3 =>
NiCl2 + Na2CO3 = 2 NaCl + NiCO3
KOH + HBr = KBr1 + H2O =>
KOH + HBr = KBr1 + H2O
K2Cr2O7 + Na2C2O4 + H2SO4 = K2S04 + Cr2(SO4)3 + Na2SO4 + H2O + CO2 =>
K2Cr2O7 + 16 Na2C2O4 + 23 H2SO4 = K2S04 + Cr2(SO4)3 + 16 Na2SO4 + 23 H2O + 32 CO2
K2SnO2 + H2O = Sn + K2Sn(OH)6 + KOH =>
2 K2SnO2 + 4 H2O = Sn + K2Sn(OH)6 + 2 KOH
S2O8{2-} + H{+} + CoW12O40{6-} = CoW12O40{5-} + HSO4{-} =>
S2O8{2-} + 2 H{+} + 2 CoW12O40{6-} = 2 CoW12O40{5-} + 2 HSO4{-}
C4H60 + O2 = CO2 + H2O =>
C4H60 + 19 O2 = 4 CO2 + 30 H2O
Fe3O4 + CO = CO2 + Fe =>
Fe3O4 + 4 CO = 4 CO2 + 3 Fe
KMnO4 + HBr = MnBr2 + KBr2 + H2O + Br2 =>
KMnO4 + 8 HBr = MnBr2 + KBr2 + 4 H2O + 2 Br2
C6H180 + O2 = CO2 + H2O =>
C6H180 + 51 O2 = 6 CO2 + 90 H2O
CuS + NaCB = Cu(CB)2 + Na2S =>
CuS + 2 NaCB = Cu(CB)2 + Na2S
K2CO3 + H2CO3 = KHCO3 =>
K2CO3 + H2CO3 = 2 KHCO3
C3H15O + O2 = CO2 + H2O =>
4 C3H15O + 25 O2 = 12 CO2 + 30 H2O
Ba(OH)2 + H4P2O7 = Ba2P2O7 + H2O =>
2 Ba(OH)2 + H4P2O7 = Ba2P2O7 + 4 H2O
Ca + HCl = CaCl2 + H2 = ? =>
Ca + 2 HCl = CaCl2 + H2
KC8H4O4 + NaOH = KOH + NaC8H4O4 =>
KC8H4O4 + NaOH = KOH + NaC8H4O4
Co(SO4) + KI + KIO3 + H2O = Co(OH)2 + K2(SO4) + I2 =>
3 Co(SO4) + 5 KI + KIO3 + 3 H2O = 3 Co(OH)2 + 3 K2(SO4) + 3 I2
CuO + H2SiO3 = H2O + CuSiO3 =>
CuO + H2SiO3 = H2O + CuSiO3
C6H15N = C6H6 + NH3 + CH4 =>
3 C6H15N = 2 C6H6 + 3 NH3 + 6 CH4
CO(NH2)2 + H2O = NH3 + H2NCOOH = CO2 + NH3 =>
CO(NH2)2 + H2O = NH3 + H2NCOOH
Ba(OH)*2 + AlCl*3 = Al(OH)*3 + BaCl*2 =>
Ba(OH)*2 + AlCl*3 = Al(OH)*3 + BaCl*2
FeCl3 + NaOH = FeO + NaHCl3 =>
FeCl3 + NaOH = FeO + NaHCl3
NH4ClO3 + MgCO3 = (NH4)2CO3 + Mg(ClO3)2 =>
2 NH4ClO3 + MgCO3 = (NH4)2CO3 + Mg(ClO3)2
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