| Équations équilibrées la veille |
I2 + 2 Na2S2O3 = 2 NaI + Na2S4O6
K2CO3 + NH4Cl = KCl + (NH4)2CO3 =>
K2CO3 + 2 NH4Cl = 2 KCl + (NH4)2CO3
(NH4)2SO4(ac) + Ca(NO3)2(ac) = CaSO4(ac) + N2O(g) + H2O(l) =>
(NH4)2SO4(ac) + Ca(NO3)2(ac) = CaSO4(ac) + 2 N2O(g) + 4 H2O(l)
NH3 + K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + N2 + H2O =>
2 NH3 + K2Cr2O7 + 4 H2SO4 = K2SO4 + Cr2(SO4)3 + N2 + 7 H2O
Na2B4O7 + H2SO4 + H2O = H3BO3 + Na2SO4 =>
Na2B4O7 + H2SO4 + 5 H2O = 4 H3BO3 + Na2SO4
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Al(OH)3 + SiO2 = Al4(SiO4)3 + H2O =>
4 Al(OH)3 + 3 SiO2 = Al4(SiO4)3 + 6 H2O
CH2O + H2O = CH2O2 + H2 =>
CH2O + H2O = CH2O2 + H2
BaCl2(aq) + Na2SO4(aq) = BaSO4 + NaCl =>
BaCl2(aq) + Na2SO4(aq) = BaSO4 + 2 NaCl
Li + Pb(OH)2 = Pb + LiOH =>
2 Li + Pb(OH)2 = Pb + 2 LiOH
NaHCO3 + O2 = Na2O + HCO3 =>
4 NaHCO3 + O2 = 2 Na2O + 4 HCO3
KMnO4(s) + HCl(aq) = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4(s) + 16 HCl(aq) = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Cl2 + NaOH = Na2ClO3 + NaCl + H2O =>
5 Cl2 + 12 NaOH = 2 Na2ClO3 + 8 NaCl + 6 H2O
S8 = S6 =>
3 S8 = 4 S6
AgNO3 + Ca(NO3)2 = Ag(NO3)2 + CaNO3 =>
AgNO3 + Ca(NO3)2 = Ag(NO3)2 + CaNO3
MnO4{-} + VO{2+} + H2O = V(OH)4{+} + Mn{2+} + H{+} =>
MnO4{-} + 5 VO{2+} + 11 H2O = 5 V(OH)4{+} + Mn{2+} + 2 H{+}
AgNO3 + KCl = AgCl + KNO3 =>
AgNO3 + KCl = AgCl + KNO3
MnO4(aq){2-} + H{+} = MnO2 + MnO4(aq){-} + OH{-} =>
3 MnO4(aq){2-} + 2 H{+} = MnO2 + 2 MnO4(aq){-} + 2 OH{-}
KHCO3 = K2CO3 + H2O + CO2 =>
2 KHCO3 = K2CO3 + H2O + CO2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Zn + Au(NO2)2 = Zn(NO2)2 + Au =>
Zn + Au(NO2)2 = Zn(NO2)2 + Au
O2 + Cl2 = OCl2 =>
O2 + 2 Cl2 = 2 OCl2
CuOH = Cu2OH2O =>
2 CuOH = Cu2OH2O
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
HCN + CuSO4 = H2SO4 + Cu(CN)2 =>
2 HCN + CuSO4 = H2SO4 + Cu(CN)2
(CH3)2CHOH(g) + O2(g) = CO2(g) + H2O(g) =>
2(CH3)2CHOH(g) + 9 O2(g) = 6 CO2(g) + 8 H2O(g)
C5H9O + O2 = CO2 + H2O =>
4 C5H9O + 27 O2 = 20 CO2 + 18 H2O
Fe + CuCl2 = FeCl2 + Cu =>
Fe + CuCl2 = FeCl2 + Cu
KNO{3} = KNO{2} + {2} =>
2 KNO{3} = 2 KNO{2} + {2}
C83H8 + H2O = H2 + CO2 =>
C83H8 + 166 H2O = 170 H2 + 83 CO2
CaO + C = CaC2 + CO =>
CaO + 3 C = CaC2 + CO
HI(aq) + Al(s) = Al(I)3(s) + H2 =>
6 HI(aq) + 2 Al(s) = 2 Al(I)3(s) + 3 H2
CH3CHO + OH{-} + Cu(OH)2 = CH3COO{-} + Cu2O + H2O =>
CH3CHO + OH{-} + 2 Cu(OH)2 = CH3COO{-} + Cu2O + 3 H2O
K2O + H3PO4 = H2O + K3PO4 =>
3 K2O + 2 H3PO4 = 3 H2O + 2 K3PO4
Ca(OH)2 + CO2 = Ca2(CO3)2 + H2O =>
2 Ca(OH)2 + 2 CO2 = Ca2(CO3)2 + 2 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
AlCl3 + MgSO4 = Al2S3O12 + MgCl2 =>
2 AlCl3 + 3 MgSO4 = Al2S3O12 + 3 MgCl2
N2 + O2 = N2O =>
2 N2 + O2 = 2 N2O
Rb2(CO3) + Ag3(PO4) = Ag2(CO3) + Rb3(PO4) =>
3 Rb2(CO3) + 2 Ag3(PO4) = 3 Ag2(CO3) + 2 Rb3(PO4)
BaCl2 + NaNO3 = Ba(NO3)2 + NaCl =>
BaCl2 + 2 NaNO3 = Ba(NO3)2 + 2 NaCl
Cu + H2O + CO2 = CuCO(OH)2 =>
Cu + H2O + CO2 = CuCO(OH)2
Z + CaCl = Z2Cl + Ca =>
2 Z + CaCl = Z2Cl + Ca
K2 + N = K3N =>
3 K2 + 2 N = 2 K3N
K3PO4 + Ca(NO3)2 = Ca3(PO4)2 + K(NO3) =>
2 K3PO4 + 3 Ca(NO3)2 = Ca3(PO4)2 + 6 K(NO3)
Cl2 + NaOH = H2O + NaCl + NaClO =>
Cl2 + 2 NaOH = H2O + NaCl + NaClO
Cu(OH)2 = CuO + H2O =>
Cu(OH)2 = CuO + H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
MgS + H2O = Mg(OH)2 + Mg(SH)2 =>
2 MgS + 2 H2O = Mg(OH)2 + Mg(SH)2
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
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