| Équations équilibrées la veille | Équations équilibrées le lendemain |
BaCr2O7 + 14 HCl = 3 Cl2 + 2 CrCl3 + 7 H2O + BaCl2
K[Al(OH)4] + HCl = AlCl3 + KOH + H2O =>
K[Al(OH)4] + 3 HCl = AlCl3 + KOH + 3 H2O
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
H2S2O3 = H2S + SO3 =>
H2S2O3 = H2S + SO3
Na2S2O3 + AgBr = NaBr + Na3(Ag(S2O3)2) =>
2 Na2S2O3 + AgBr = NaBr + Na3(Ag(S2O3)2)
Zn + NaOH + H2O = Na2Zn(OH)4 + H2 =>
Zn + 2 NaOH + 2 H2O = Na2Zn(OH)4 + H2
CaCO3(s) + HCl(aq) = H2O(l) + CO2(g) + CaCl2(aq) =>
CaCO3(s) + 2 HCl(aq) = H2O(l) + CO2(g) + CaCl2(aq)
P2 + O2 = P4O10 =>
2 P2 + 5 O2 = P4O10
CH4 + Cl2 = CH3Cl + HCl =>
CH4 + Cl2 = CH3Cl + HCl
Cl2 + O2 = ClO2 =>
Cl2 + 2 O2 = 2 ClO2
Sn + HCl = SnCl2 + H2 =>
Sn + 2 HCl = SnCl2 + H2
H3PO2 + NaOH = Na2HPO2 + H2O =>
H3PO2 + 2 NaOH = Na2HPO2 + 2 H2O
HOOCCOOH + NaOH = NaOOCCOOH + H2O =>
HOOCCOOH + NaOH = NaOOCCOOH + H2O
NaClO2 + H2SO4 = Na2SO4 + ClO2 + H2 =>
2 NaClO2 + H2SO4 = Na2SO4 + 2 ClO2 + H2
Cl2 + KBr = KCl + Br2 =>
Cl2 + 2 KBr = 2 KCl + Br2
C2H4O + Cl2 = CCl4 + HCl + HClO =>
C2H4O + 6 Cl2 = 2 CCl4 + 3 HCl + HClO
C3H6O3 + NaOH = NaC3H5O3 + H2O =>
C3H6O3 + NaOH = NaC3H5O3 + H2O
CoCl2 + Na2CO3 = CoCO3 + NaCl =>
CoCl2 + Na2CO3 = CoCO3 + 2 NaCl
CH3CHO + Cu(OH)2 = Cu2O + CO2 + H2O =>
CH3CHO + 10 Cu(OH)2 = 5 Cu2O + 2 CO2 + 12 H2O
TeF6 + H2O = HF + H6TeO6 =>
TeF6 + 6 H2O = 6 HF + H6TeO6
Sb2S3 + HNO3 = H3SbO4 + H2SO4 + NO2 + H2O =>
Sb2S3 + 28 HNO3 = 2 H3SbO4 + 3 H2SO4 + 28 NO2 + 8 H2O
Ag(s) + H2S(g) = Ag2S(s) + H2(g) =>
2 Ag(s) + H2S(g) = Ag2S(s) + H2(g)
K2CO3 + Fe2(SO4)3 = K2(SO4) + Fe2(CO3)3 =>
3 K2CO3 + Fe2(SO4)3 = 3 K2(SO4) + Fe2(CO3)3
Mn + H2SO4 = MnSO4 + H2 =>
Mn + H2SO4 = MnSO4 + H2
C + HO = CHO =>
C + HO = CHO
C7H12(l) + O2(g) = CO2(g) + H2O(g) =>
C7H12(l) + 10 O2(g) = 7 CO2(g) + 6 H2O(g)
NH4Cl + AgNO3 = NH4NO3 + AgCl =>
NH4Cl + AgNO3 = NH4NO3 + AgCl
Cr(OH)3 + Na2CO3 + KClO3 = KCl + CO2 + H2O9 + Na2CrO4 =>
2 Cr(OH)3 + 2 Na2CO3 + 9 KClO3 = 9 KCl + 2 CO2 + 3 H2O9 + 2 Na2CrO4
Li + HCl = LiCl + H2 =>
2 Li + 2 HCl = 2 LiCl + H2
MnO + NaOH = Na2MnO2 + H2O =>
MnO + 2 NaOH = Na2MnO2 + H2O
HBr + AgCl3 = HCl + AgBr3 =>
3 HBr + AgCl3 = 3 HCl + AgBr3
BaCO3 + H2SO3 = BaSO3 + H2CO3 =>
BaCO3 + H2SO3 = BaSO3 + H2CO3
WF6 + H2O = WOF4 + HF =>
WF6 + H2O = WOF4 + 2 HF
C4H6O5 + NaOH = Na2C4H4O5 + H2O =>
C4H6O5 + 2 NaOH = Na2C4H4O5 + 2 H2O
Al2(CO3)3 + Mg(OH)2 = Al(OH)3 + MgCO3 =>
Al2(CO3)3 + 3 Mg(OH)2 = 2 Al(OH)3 + 3 MgCO3
CH3CH2COOC3H7 + H2O = C3H7OH + CH3CH2COOH =>
CH3CH2COOC3H7 + H2O = C3H7OH + CH3CH2COOH
Al(OH)2Cl + HCl = AlOHCl2 + H2O =>
Al(OH)2Cl + HCl = AlOHCl2 + H2O
Si + HNO3 + HF = H2SiF6 + NO + H2O =>
3 Si + 4 HNO3 + 18 HF = 3 H2SiF6 + 4 NO + 8 H2O
Pt + O2 = PtO =>
2 Pt + O2 = 2 PtO
Mg + HNO3 = Mg(NO3)2 + NO2 + H2O =>
Mg + 4 HNO3 = Mg(NO3)2 + 2 NO2 + 2 H2O
C6H14 + H2SO4 = C6H14O3S + H2O =>
C6H14 + H2SO4 = C6H14O3S + H2O
Fe(NO3)3(aq) + NaOH(aq) = Fe(OH)3 + Na(NO3) =>
Fe(NO3)3(aq) + 3 NaOH(aq) = Fe(OH)3 + 3 Na(NO3)
Fe(s) + Cu(NO3)2 = Fe(NO3)2 + Cu =>
Fe(s) + Cu(NO3)2 = Fe(NO3)2 + Cu
Xe(g) + F2(g) = XeF4(g) =>
Xe(g) + 2 F2(g) = XeF4(g)
Na2S2O3 + KClO3 + H2O = Na2S4O6 + Cl + NaOH + K =>
6 Na2S2O3 + KClO3 + 3 H2O = 3 Na2S4O6 + Cl + 6 NaOH + K
P4 + IO3{-} + OH{-} = HPO3{2-} + I2 + H2O =>
5 P4 + 12 IO3{-} + 28 OH{-} = 20 HPO3{2-} + 6 I2 + 4 H2O
Fe(HCO3)3 = Fe(OH)3 + CO2 =>
Fe(HCO3)3 = Fe(OH)3 + 3 CO2
K2Cr2O7 + Na2S + H2O = Cr2O3 + S + KOH + NaOH =>
K2Cr2O7 + 3 Na2S + 4 H2O = Cr2O3 + 3 S + 2 KOH + 6 NaOH
Na2HPO4 + KOH = Na3PO4 + K3PO4 + H2O =>
3 Na2HPO4 + 3 KOH = 2 Na3PO4 + K3PO4 + 3 H2O
CaCO3 + (NH4)2HPO4 = Ca5(PO4)3(OH)(s) + CO2 + NH3 + H2O =>
5 CaCO3 + 3(NH4)2HPO4 = Ca5(PO4)3(OH)(s) + 5 CO2 + 6 NH3 + 4 H2O
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