| Équations équilibrées la veille |
4 K2Cr2O7 + 3(NH4)2S + 16 H2SO4 = 4 Cr2(SO4)3 + 3(NH4)2SO4 + 4 K2SO4 + 16 H2O
FeSe + I2 = FeI2 + Se =>
FeSe + I2 = FeI2 + Se
C6H7NaO6 + FeCl3 = FeCl2 + CO + H2 + NaCl =>
2 C6H7NaO6 + 2 FeCl3 = 2 FeCl2 + 12 CO + 7 H2 + 2 NaCl
H3PO4 + Al2O3 = AlPO4 + H2O =>
2 H3PO4 + Al2O3 = 2 AlPO4 + 3 H2O
KMnO4 + C2H6O + H2SO4 = C4H8O2 + MnSO4 + K2SO4 + H2O =>
4 KMnO4 + 10 C2H6O + 6 H2SO4 = 5 C4H8O2 + 4 MnSO4 + 2 K2SO4 + 16 H2O
(NH4)3Cr2O7 = Cr + O3 + N2 + H2O =>
6(NH4)3Cr2O7 = 12 Cr + 2 O3 + 9 N2 + 36 H2O
Na2CO3 + Cu(NO3)2 = CuCO3 + NaNO3 =>
Na2CO3 + Cu(NO3)2 = CuCO3 + 2 NaNO3
Ba + Pb(SO4)2 = Pb + Ba(SO4)2 =>
Ba + Pb(SO4)2 = Pb + Ba(SO4)2
Na2SO3 + H2O = NaOH + SO2 =>
Na2SO3 + H2O = 2 NaOH + SO2
CrI3(ac) + KOH(ac) + Cl2(g) = K2CrO4(ac) + KIO4(ac) + KCl(ac) + H2O(l) =>
2 CrI3(ac) + 64 KOH(ac) + 27 Cl2(g) = 2 K2CrO4(ac) + 6 KIO4(ac) + 54 KCl(ac) + 32 H2O(l)
AlCl3 + H2O = Al(OH)3 + Cl + H3O =>
AlCl3 + 6 H2O = Al(OH)3 + 3 Cl + 3 H3O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Na2CrO4 + H2SO4 + H2O2 = H2CrO6 + H2O + Na2SO4 =>
Na2CrO4 + H2SO4 + 2 H2O2 = H2CrO6 + 2 H2O + Na2SO4
Na2S + Cl2 = NaCl + S =>
Na2S + Cl2 = 2 NaCl + S
NaOH + HF + AI(OH)3 = Na3AIF6 + H2O =>
3 NaOH + 6 HF + AI(OH)3 = Na3AIF6 + 6 H2O
H2SO4(aq) + H2O(l) = H3O(aq) + (SO4)2(aq) =>
2 H2SO4(aq) + 4 H2O(l) = 4 H3O(aq) + (SO4)2(aq)
Na2CrO3 + H2SO4 = Na2(SO4) + H2CrO3 =>
Na2CrO3 + H2SO4 = Na2(SO4) + H2CrO3
ZnCr2O7 + Na = Na2Cr2O7 + Zn =>
ZnCr2O7 + 2 Na = Na2Cr2O7 + Zn
AgC2H3O2 + K2CrO4 = Ag2CrO4 + KC2H3O2 =>
2 AgC2H3O2 + K2CrO4 = Ag2CrO4 + 2 KC2H3O2
HNO3 + HBr0 = NO + Br2 + H2O =>
2 HNO3 + 6 HBr0 = 2 NO + 3 Br2 + 4 H2O
H2O + Ca(HCO3)2 = H2CO3 + Ca(OH)2 =>
2 H2O + Ca(HCO3)2 = 2 H2CO3 + Ca(OH)2
CN2OH4 + H2O = NH3 + H2CO3 =>
CN2OH4 + 2 H2O = 2 NH3 + H2CO3
H + Ti = TiH3 =>
3 H + Ti = TiH3
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
H2SO4 + Ba(NO3) = H2(NO3) + BaSO4 =>
H2SO4 + Ba(NO3) = H2(NO3) + BaSO4
C3H7OH + O2 = C2H3O2 + H =>
2 C3H7OH + 2 O2 = 3 C2H3O2 + 7 H
(HOOCCH2)2C(OH)COOH + O2 = CO2 + H2O =>
2(HOOCCH2)2C(OH)COOH + 9 O2 = 12 CO2 + 8 H2O
N(g) + O2(g) = N2O3(g) =>
4 N(g) + 3 O2(g) = 2 N2O3(g)
HCO3 + AlOH = H2O + AlCO3 =>
HCO3 + AlOH = H2O + AlCO3
C10H16 + CI = C + HCI =>
C10H16 + 16 CI = 10 C + 16 HCI
CuNO3 + Na2O = CuO + Na2(NO3) =>
CuNO3 + Na2O = CuO + Na2(NO3)
MgO(s) + Si(l) = Mg(s) + SiO2(l) =>
2 MgO(s) + Si(l) = 2 Mg(s) + SiO2(l)
SnCl4 + H2S = SnCl2 + S + HCl =>
SnCl4 + H2S = SnCl2 + S + 2 HCl
SiBr2 = Si + Br2 =>
SiBr2 = Si + Br2
Zn + Cu = Zn2Cu =>
2 Zn + Cu = Zn2Cu
Hg(NO3)2 + NaCl = HgCl2 + Na2(NO3)2 =>
Hg(NO3)2 + 2 NaCl = HgCl2 + Na2(NO3)2
Zn + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + H2O + ZnSO4 + K2SO4 =>
3 Zn + K2Cr2O7 + 7 H2SO4 = Cr2(SO4)3 + 7 H2O + 3 ZnSO4 + K2SO4
X(NH)2 + H2O2 + OH{-} = XO2{-} + H2O + N2 =>
2 X(NH)2 + 5 H2O2 + 2 OH{-} = 2 XO2{-} + 8 H2O + 2 N2
CH4O + Na2Cr2O7 + H2SO4 = CH2O2 + Cr2(SO4) + Na2SO4 + H2O =>
5 CH4O + 2 Na2Cr2O7 + 4 H2SO4 = 5 CH2O2 + 2 Cr2(SO4) + 2 Na2SO4 + 9 H2O
Cr + H2SeO4 = Se + H2CrO4 =>
Cr + H2SeO4 = Se + H2CrO4
KClO3 + KOH + CrCl3 = K2CrO4 + H2O + KCl =>
KClO3 + 10 KOH + 2 CrCl3 = 2 K2CrO4 + 5 H2O + 7 KCl
AlFe(SO4)3 = AlFe + SO4 =>
AlFe(SO4)3 = AlFe + 3 SO4
SiH3 + O2 = SiO + H2O3 =>
4 SiH3 + 11 O2 = 4 SiO + 6 H2O3
I + P + H2O = PH4I + H3PO4 =>
5 I + 9 P + 16 H2O = 5 PH4I + 4 H3PO4
C9H8O4 + CH3OH = C10H10O4 + C2H6O2 =>
6 C9H8O4 + 14 CH3OH = 5 C10H10O4 + 9 C2H6O2
Ar2Cl = Ar + Cl =>
Ar2Cl = 2 Ar + Cl
Fe2O3 + NH3 = Fe3O4 + N2 + H2O =>
9 Fe2O3 + 2 NH3 = 6 Fe3O4 + N2 + 3 H2O
CrI3 + Na(OH) + Cl2 = NaIO7 + Na2Cr2O7 + NaCl + H2O =>
2 CrI3 + 98 Na(OH) + 45 Cl2 = 6 NaIO7 + Na2Cr2O7 + 90 NaCl + 49 H2O
NH2OH + Fe + H = NH4 + Fe(OH) =>
NH2OH + Fe + 2 H = NH4 + Fe(OH)
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
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