| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 KI + 2 H2SO4 + 2 NaNO2 = K2SO4 + 2 I + 2 NO + 2 H2O + Na2SO4
Mg + H2SO4 = Mg4O + H2S =>
16 Mg + H2SO4 = 4 Mg4O + H2S
NH4Cl + Ca(OH)2 = CaCl2 + NH3 + H2O =>
2 NH4Cl + Ca(OH)2 = CaCl2 + 2 NH3 + 2 H2O
NaOHKHF = NaKFH2O =>
NaOHKHF = NaKFH2O
Sb2O3(s) + NaOH(ac) = NaSbO2(ac) + H2O(i) =>
Sb2O3(s) + 2 NaOH(ac) = 2 NaSbO2(ac) + H2O(i)
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Na2O + H2O = sodiumhydroxide =>
Na2O + H2O = 2 NaOH
HCOH + Cl2 = CO + HCl =>
HCOH + Cl2 = CO + 2 HCl
KI + HClO = I2 + KCl + H2O + KClO =>
2 KI + 2 HClO = I2 + KCl + H2O + KClO
Na2H3IO6 = Na3H2IO6 + H5IO6 =>
3 Na2H3IO6 = 2 Na3H2IO6 + H5IO6
PbO2 + CH3SO3H + H = Pb(CH3SO3)2 + H2O =>
PbO2 + 2 CH3SO3H + 2 H = Pb(CH3SO3)2 + 2 H2O
N2O10 = N2O3 + O2 =>
2 N2O10 = 2 N2O3 + 7 O2
NaOHKHF = NaKFH2O =>
NaOHKHF = NaKFH2O
KClFeSO4 = KSO4FeCl =>
KClFeSO4 = KSO4FeCl
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
HBrO4 + HSbF6 = BrO3{+} + SbF6{-} + H2O =>
HBrO4 + HSbF6 = BrO3{+} + SbF6{-} + H2O
AlO2 + H2O = H2OO2 + Al =>
AlO2 + H2O = H2OO2 + Al
Zn + Pb{2+}(NO3) = Zn{2+}(NO3) + Pb =>
Zn + Pb{2+}(NO3) = Zn{2+}(NO3) + Pb
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
H2P = PH3 + P2H =>
5 H2P = 3 PH3 + P2H
HF + NaF = HNa + F =>
HF + NaF = HNa + 2 F
H2SO4 + Al2(SiO3)3 = H2SiO3 + Al2(SO4)3 =>
3 H2SO4 + Al2(SiO3)3 = 3 H2SiO3 + Al2(SO4)3
Ba(HS03)2 + H2SO4 = BaSO3 + SO2 + H2O =>
Ba(HS03)2 + 14 H2SO4 = BaSO3 + 19 SO2 + 15 H2O
HO2 = H2O + O =>
2 HO2 = H2O + 3 O
C6H5C2H3 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + C6H5C2H5O2 + H2O =>
3 C6H5C2H3 + K2Cr2O7 + 4 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 C6H5C2H5O2 + H2O
C4H6 = C + H2 =>
C4H6 = 4 C + 3 H2
CaBr2 + Na2(CO3) = CaCO3 + NaBr =>
CaBr2 + Na2(CO3) = CaCO3 + 2 NaBr
KOH + H4SiO4 = KH3SiO4 + H2O =>
KOH + H4SiO4 = KH3SiO4 + H2O
K + Fe2S3 = KFe2S3 =>
K + Fe2S3 = KFe2S3
C2H6O + Cr2O72{-} + H{+} = C2H4O + H2O + Cr3{+} =>
427 C2H6O + 6 Cr2O72{-} + 10 H{+} = 427 C2H4O + 432 H2O + 4 Cr3{+}
H2O + K + PbO2 + KCl = KPb(OH)3 + KClO3 =>
9 H2O + 6 K + 6 PbO2 + KCl = 6 KPb(OH)3 + KClO3
Ni2 + Pb = NiPb2 =>
Ni2 + 4 Pb = 2 NiPb2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
(NH4)2SO4(aq) + Ba(NO3)2(aq) = BaSO4(s) + NH4NO3(g) =>
(NH4)2SO4(aq) + Ba(NO3)2(aq) = BaSO4(s) + 2 NH4NO3(g)
Ca(OH)2 + NH4Cl = NH4OH + CaCl2 =>
Ca(OH)2 + 2 NH4Cl = 2 NH4OH + CaCl2
K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O + O2 =>
2 K2Cr2O7 + 8 H2SO4 = 2 K2SO4 + 2 Cr2(SO4)3 + 8 H2O + 3 O2
Be + I2 = BeI =>
2 Be + I2 = 2 BeI
Fe(SCN)3 + H3PO4 = H3[Fe(PO4)2] + HSCN =>
Fe(SCN)3 + 2 H3PO4 = H3[Fe(PO4)2] + 3 HSCN
Cr(OH)3 + CuCl2 = Cu(OH)2 + CrCl3 =>
2 Cr(OH)3 + 3 CuCl2 = 3 Cu(OH)2 + 2 CrCl3
Cr(s) + HCl(aq) = CrCl3(a) + H2(g) =>
2 Cr(s) + 6 HCl(aq) = 2 CrCl3(a) + 3 H2(g)
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
K2Cr2O7 + KI + H2SO4 = K2SO4 + Cr2SO4 + H2O + I2 =>
K2Cr2O7 + 10 KI + 7 H2SO4 = 6 K2SO4 + Cr2SO4 + 7 H2O + 5 I2
S8 + H2O = S2O32{2-} + S2{2-} + H{+} =>
8 S8 + 32 H2O = S2O32{2-} + 31 S2{2-} + 64 H{+}
Fe(OH)3 + H2(SO4) = Fe2(SO4)3 + H(OH) =>
2 Fe(OH)3 + 3 H2(SO4) = Fe2(SO4)3 + 6 H(OH)
Al + FeO = Al2O3 + Fe =>
2 Al + 3 FeO = Al2O3 + 3 Fe
BaCl2(ac) + (NH4)2CO3(ac) = BaCO3(s) + NH4Cl(aq) =>
BaCl2(ac) + (NH4)2CO3(ac) = BaCO3(s) + 2 NH4Cl(aq)
Sr + Cl + H2O = HCl + SrOH =>
Sr + Cl + H2O = HCl + SrOH
CH3CH2CH(oh)CHCH2CH3 + KMnO4 + H2O = CH3CH2CH(OH)CH(OH)CH2CH3 + KOH + MnO2 =>
3 CH3CH2CH(oh)CHCH2CH3 + 2 KMnO4 + 4 H2O = 3 CH3CH2CH(OH)CH(OH)CH2CH3 + 2 KOH + 2 MnO2
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O =>
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O
CuS + HNO3 = Cu(NO3)1 + S + NO + H2O =>
3 CuS + 4 HNO3 = 3 Cu(NO3)1 + 3 S + NO + 2 H2O
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