| Équations équilibrées la veille | Équations équilibrées le lendemain |
K2Cr2O7 + Na2S = K2S + Na2Cr2O7
Ca3(PO4)2 + SiO2(s) + C(s) = CaSiO3(s) + P4(s) + CO(g) =>
2 Ca3(PO4)2 + 6 SiO2(s) + 10 C(s) = 6 CaSiO3(s) + P4(s) + 10 CO(g)
CH3C6H4NO2 + KMnO4 = COOHC6H4NO2 + MnO2 + KOH =>
CH3C6H4NO2 + 2 KMnO4 = COOHC6H4NO2 + 2 MnO2 + 2 KOH
NaNo3 + LiI = LiNo3 + NaI =>
NaNo3 + LiI = LiNo3 + NaI
HIO3 + H2SO4 = IO2{+} + SO4{-2} + H2O =>
2 HIO3 + H2SO4 = 2 IO2{+} + SO4{-2} + 2 H2O
Al + NaOH = Na2Al + O2 + H2 =>
Al + 2 NaOH = Na2Al + O2 + H2
Bi + HNO3 = BiNO32 + NO + H2O =>
3 Bi + 62 HNO3 = 3 BiNO32 + 59 NO + 31 H2O
K2SO4 + Ca(C2H3O2)2 = K2Ca(C2H3O2)2SO4 =>
K2SO4 + Ca(C2H3O2)2 = K2Ca(C2H3O2)2SO4
Na2O2 + H2CO3 = Na2CO3 + H2O + O2 =>
2 Na2O2 + 2 H2CO3 = 2 Na2CO3 + 2 H2O + O2
Cl2 + NaBr2 = NaCl + Br =>
Cl2 + 2 NaBr2 = 2 NaCl + 4 Br
P + HNO3 + HCl = H2PCl6 + NO + H2O =>
3 P + 4 HNO3 + 18 HCl = 3 H2PCl6 + 4 NO + 8 H2O
H2SO3 + Sn(OH)2 = H2O + SnSO3 =>
H2SO3 + Sn(OH)2 = 2 H2O + SnSO3
H3PO4(aq) + NaOH(aq) = H2O(s) + Na3PO4(aq) =>
H3PO4(aq) + 3 NaOH(aq) = 3 H2O(s) + Na3PO4(aq)
Bi(OH)5 + H2CO3 = Bi2(CO3)5 + H2O =>
2 Bi(OH)5 + 5 H2CO3 = Bi2(CO3)5 + 10 H2O
C6H8O7 + NaOH = C6H5O7Na3 + H2O =>
C6H8O7 + 3 NaOH = C6H5O7Na3 + 3 H2O
CoSO4 + KMnO4 + H2O = MnO2 + Co(OH)3 + K2SO4 + H2SO4 =>
6 CoSO4 + 2 KMnO4 + 14 H2O = 2 MnO2 + 6 Co(OH)3 + K2SO4 + 5 H2SO4
Mg + NH3 = Mg4N3 + H2 =>
8 Mg + 6 NH3 = 2 Mg4N3 + 9 H2
NaNO2 + HCl = N2O + H2O + NaCl + NaNO3 =>
4 NaNO2 + 2 HCl = N2O + H2O + 2 NaCl + 2 NaNO3
Li + HCl2 = LiCl3 + H2 =>
4 Li + 6 HCl2 = 4 LiCl3 + 3 H2
HCl + CaCO3 = CaCl2 + H2CO3 =>
2 HCl + CaCO3 = CaCl2 + H2CO3
C14H12O6S + H2O2 = H2O + CO2 + H2SO4 =>
C14H12O6S + 31 H2O2 = 36 H2O + 14 CO2 + H2SO4
V + Br2 = VBr =>
2 V + Br2 = 2 VBr
K[Ag(CN)2] + Zn = Zn(CN)2 + Ag + KCN =>
2 K[Ag(CN)2] + Zn = Zn(CN)2 + 2 Ag + 2 KCN
NH4OH(aq) + CH3COOH(aq) = C2H7NO2(aq) + H2O(l) =>
NH4OH(aq) + CH3COOH(aq) = C2H7NO2(aq) + H2O(l)
NaNo3 + LiI = LiNo3 + NaI =>
NaNo3 + LiI = LiNo3 + NaI
(NH4)2S(aq) + BaCl2(aq) = BaS(s) + NH4Cl(aq) =>
(NH4)2S(aq) + BaCl2(aq) = BaS(s) + 2 NH4Cl(aq)
Ca2Al3(SiO4)3(OH) + SiO2 = CaAl2Si2O8 + Ca3Al2Si3O12 + H2O =>
4 Ca2Al3(SiO4)3(OH) + SiO2 = 5 CaAl2Si2O8 + Ca3Al2Si3O12 + 2 H2O
Br2 + NaNO3 = NaBr + NO3 =>
Br2 + 2 NaNO3 = 2 NaBr + 2 NO3
Na2S2O3 + AgBr = Na[Ag(S2O3)] + NaBr =>
Na2S2O3 + AgBr = Na[Ag(S2O3)] + NaBr
Cu + H{+} + Cl{-} + H2O2 = CuCl2 + H2O =>
Cu + 2 H{+} + 2 Cl{-} + H2O2 = CuCl2 + 2 H2O
O2 + F = O2F =>
O2 + F = O2F
HCN + NaOH = NaO + H2CN =>
HCN + NaOH = NaO + H2CN
SbCl6 + H2O + NaCl = HSbNa + HCl + O =>
SbCl6 + 4 H2O + NaCl = HSbNa + 7 HCl + 4 O
Na2O + H3PO4 = H2O + Na3PO4 =>
3 Na2O + 2 H3PO4 = 3 H2O + 2 Na3PO4
Li(OH) + MgI2 = LiI + Mg(OH)2 =>
2 Li(OH) + MgI2 = 2 LiI + Mg(OH)2
KSO4 + Pb(NO3)2 = PbSO4 + K(NO3)2 =>
KSO4 + Pb(NO3)2 = PbSO4 + K(NO3)2
Pb(CH3COO)2 + Ag = Ag(CH3COO)2 + Pb =>
Pb(CH3COO)2 + Ag = Ag(CH3COO)2 + Pb
Pb(NO3)2 + Na2S = PbS + NaNO3 =>
Pb(NO3)2 + Na2S = PbS + 2 NaNO3
C4H9OOH + O2 = CO2 + H2O =>
2 C4H9OOH + 11 O2 = 8 CO2 + 10 H2O
(CH3(CH2)2CH3) + O2 = CO2 + H2O =>
2(CH3(CH2)2CH3) + 13 O2 = 8 CO2 + 10 H2O
FeCl3 + KJ = FeCl2 + J2 + KCl =>
2 FeCl3 + 2 KJ = 2 FeCl2 + J2 + 2 KCl
Na(CO3)2 + HC2H3O2 = H2O + CO2 + C2H3O2Na =>
8 Na(CO3)2 + 11 HC2H3O2 = 10 H2O + 22 CO2 + 8 C2H3O2Na
NH4F + KOH = KF + NH3 + H2O =>
NH4F + KOH = KF + NH3 + H2O
CoOHCl + NH4OH = [Co(NH3)6](OH)2 + NH4Cl + H2O =>
CoOHCl + 7 NH4OH = [Co(NH3)6](OH)2 + NH4Cl + 6 H2O
Al + NO3{-} + H2O = Al(OH)4{-} + NH3 + H{+} =>
8 Al + 3 NO3{-} + 23 H2O = 8 Al(OH)4{-} + 3 NH3 + 5 H{+}
Na2S2O3 + HNO3 = Na2SO4 + S + NO2 + H2O =>
Na2S2O3 + 2 HNO3 = Na2SO4 + S + 2 NO2 + H2O
Cu2CO3(OH)2H2O(s) = CuO(s) + CO2(g) + H2O(g) =>
Cu2CO3(OH)2H2O(s) = 2 CuO(s) + CO2(g) + 2 H2O(g)
Fe3O4 + CO(g) = CO2(g) + Fe =>
Fe3O4 + 4 CO(g) = 4 CO2(g) + 3 Fe
Cu3(PO4)2 + KCl = K3PO4 + CuCl2 =>
Cu3(PO4)2 + 6 KCl = 2 K3PO4 + 3 CuCl2
FeH3 + Cl2 = FeCl2 + HCl =>
2 FeH3 + 5 Cl2 = 2 FeCl2 + 6 HCl
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