| Équations équilibrées la veille | Équations équilibrées le lendemain |
21 MnO2 + KNO2 + 42 HNO3 = 21 Mn(NO3)2 + KNO23 + 21 H2O
Mg + AlCl3 = MgCl2 + Al =>
3 Mg + 2 AlCl3 = 3 MgCl2 + 2 Al
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
Cu + KNO3 + KOH = K2CuO2 + KNO2 + H2O =>
Cu + KNO3 + 2 KOH = K2CuO2 + KNO2 + H2O
NaNO2 + Pb(NO3)4 = Pb(NO2)4 + NaNO3 =>
4 NaNO2 + Pb(NO3)4 = Pb(NO2)4 + 4 NaNO3
Li2O + Al2O3 = LiAlO2 =>
Li2O + Al2O3 = 2 LiAlO2
Cr2O3 + H2TeO4 = Cr(TeO4) + O2 + H2O =>
2 Cr2O3 + 4 H2TeO4 = 4 Cr(TeO4) + O2 + 4 H2O
Na + H2SO4 = Na2SO4 + H2 =>
2 Na + H2SO4 = Na2SO4 + H2
KNO3 + K2SO4 = K2NO3 + KSO4 =>
KNO3 + K2SO4 = K2NO3 + KSO4
C3H5(OH)3 + Na = C3H5(ONa)3 + H2 =>
2 C3H5(OH)3 + 6 Na = 2 C3H5(ONa)3 + 3 H2
CH3CH2CH2OH + Cr2O7{2-} + H{+} = CH3CH2COH + Cr{3+} + H2O =>
3 CH3CH2CH2OH + Cr2O7{2-} + 8 H{+} = 3 CH3CH2COH + 2 Cr{3+} + 7 H2O
HI + NHO3 = NO + I2 + H2O =>
6 HI + 2 NHO3 = 2 NO + 3 I2 + 4 H2O
KI + NO2 = KNO2 + I2 =>
2 KI + 2 NO2 = 2 KNO2 + I2
HNO2 + NaNO2 = HNO2Na + NO2 =>
HNO2 + NaNO2 = HNO2Na + NO2
KI + H2O2 = I2 + KOH =>
2 KI + H2O2 = I2 + 2 KOH
Cu + C2H5NO2COOH = H2 + CuC2H3NO2COOH =>
Cu + C2H5NO2COOH = H2 + CuC2H3NO2COOH
Al(OH)3 + AlCl3 = Al(OH)2Cl =>
2 Al(OH)3 + AlCl3 = 3 Al(OH)2Cl
CrO2 + HCl = CrCl2 + Cl2 + H2O =>
CrO2 + 4 HCl = CrCl2 + Cl2 + 2 H2O
C3H5(OH)3 + Na = C3H5(ONa2)3 + H2 =>
2 C3H5(OH)3 + 12 Na = 2 C3H5(ONa2)3 + 3 H2
Na + O2 = Na2O2 =>
2 Na + O2 = Na2O2
Cd(NO3)2 + NH3 + H2O = Cd(OH)2 + NH4NO3 =>
Cd(NO3)2 + 2 NH3 + 2 H2O = Cd(OH)2 + 2 NH4NO3
(NH4)3PO4 + NaOH = NH3 + Na3PO4 + H2O =>
(NH4)3PO4 + 3 NaOH = 3 NH3 + Na3PO4 + 3 H2O
H2SO4 + FeS = FeSO4 + H2S =>
H2SO4 + FeS = FeSO4 + H2S
HCl + CrO2 = CrCl2 + H2O + Cl =>
4 HCl + CrO2 = CrCl2 + 2 H2O + 2 Cl
Mg + F2 = MgF2 =>
Mg + F2 = MgF2
NaAl(OH)4 + HCl = AlCl3 + H2O + NaCl =>
NaAl(OH)4 + 4 HCl = AlCl3 + 4 H2O + NaCl
CrO2 + HCl = CrCl3 + Cl + H2O =>
CrO2 + 4 HCl = CrCl3 + Cl + 2 H2O
Fe2O3(g) + H2(g) = Fe(s) + H2O(g) =>
Fe2O3(g) + 3 H2(g) = 2 Fe(s) + 3 H2O(g)
Yb + S = YbS =>
Yb + S = YbS
HClO3 + P + H2O = H3PO4 + HCl =>
5 HClO3 + 6 P + 9 H2O = 6 H3PO4 + 5 HCl
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
CaCl2 + AgNO3 = AgCl + Ca(NO3)2 =>
CaCl2 + 2 AgNO3 = 2 AgCl + Ca(NO3)2
CrO2 + HCl = CrCl4 + H2O =>
CrO2 + 4 HCl = CrCl4 + 2 H2O
P4O10 + HCl = P4H + O10Cl =>
P4O10 + HCl = P4H + O10Cl
CH7 + O2 = CO2 + H2O =>
4 CH7 + 11 O2 = 4 CO2 + 14 H2O
Ga + NH4OH + H2O = NH4[Ga(OH)4] + H2 =>
2 Ga + 2 NH4OH + 6 H2O = 2 NH4[Ga(OH)4] + 3 H2
Al(NO3)3 + Pb = Pb(NO3)3 + Al =>
Al(NO3)3 + Pb = Pb(NO3)3 + Al
C6H6 + CH3Cl = C6H5CH3 + HCl =>
C6H6 + CH3Cl = C6H5CH3 + HCl
CaCl2 + H2SO4 = CaSO4 + HCl =>
CaCl2 + H2SO4 = CaSO4 + 2 HCl
AsH2 + O2 = As2O3 + H2O =>
4 AsH2 + 5 O2 = 2 As2O3 + 4 H2O
S4Cl2 + NH3 = N4S4 + NH4Cl + S8 =>
12 S4Cl2 + 32 NH3 = 2 N4S4 + 24 NH4Cl + 5 S8
Ba(HCO3)2 + H2SO4(aq) = BaSO4(aq) + H2O(l) + CO2(g) =>
Ba(HCO3)2 + H2SO4(aq) = BaSO4(aq) + 2 H2O(l) + 2 CO2(g)
CO2 + S = CS2 + O2 =>
CO2 + 2 S = CS2 + O2
Na + S = Na2S(classification) =>
2 Na + S = Na2S(classification)
Fe(OH)3 + P2O5 = Fe2O3 + P(OH)5 =>
10 Fe(OH)3 + 3 P2O5 = 5 Fe2O3 + 6 P(OH)5
MgO + LiF = MgF2 + Li2O =>
MgO + 2 LiF = MgF2 + Li2O
K + ClO3 = KCl + O =>
K + ClO3 = KCl + 3 O
Mn2(SO4)3 = MnSO4 + O2 + SO3 =>
2 Mn2(SO4)3 = 4 MnSO4 + O2 + 2 SO3
CuSO4 + K3[Fe(CN)6] + H2O = Cu3[Fe(CN)6]2 + H2SO4 + KOH =>
3 CuSO4 + 2 K3[Fe(CN)6] + 6 H2O = Cu3[Fe(CN)6]2 + 3 H2SO4 + 6 KOH
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
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