| Équations équilibrées la veille | Équations équilibrées le lendemain |
Na + OH = NaOH
CH3CH2CH2CH2OH + Cr2O72{-} + H{+} = CH3CH2CH2COOH + Cr3{+} + H2O =>
427 CH3CH2CH2CH2OH + 12 Cr2O72{-} + 20 H{+} = 427 CH3CH2CH2COOH + 8 Cr3{+} + 437 H2O
Na2HPO4 = H2O + Na4P2O7 =>
2 Na2HPO4 = H2O + Na4P2O7
Cu2O + Pb(NO3)2 = Cu(NO3) + PbO =>
Cu2O + Pb(NO3)2 = 2 Cu(NO3) + PbO
Ca2SiO4 + H2SO4 = CaSO4 + H2O + SiO2 =>
Ca2SiO4 + 2 H2SO4 = 2 CaSO4 + 2 H2O + SiO2
K2Cr2O7 + H2 = K2Cr2O5 + H2O =>
K2Cr2O7 + 2 H2 = K2Cr2O5 + 2 H2O
SiBr4 + H2O = SiO2 + HBr =>
SiBr4 + 2 H2O = SiO2 + 4 HBr
AgNO3 + NH4OH + NaOH = [Ag(NH3)2]OH + NaNO3 + H2O =>
AgNO3 + 2 NH4OH + NaOH = [Ag(NH3)2]OH + NaNO3 + 2 H2O
CaCO3(s) + HNO3(ac) = Ca(NO3)2(ac) + CO2(g) + H2O(l) =>
CaCO3(s) + 2 HNO3(ac) = Ca(NO3)2(ac) + CO2(g) + H2O(l)
FeSO4 + Br = FeBr2 + SO4 =>
FeSO4 + 2 Br = FeBr2 + SO4
HI + Rb2CO3 = CO2 + H2O + RbI =>
2 HI + Rb2CO3 = CO2 + H2O + 2 RbI
N2O5 + SO3 = NO2 + SO4 =>
N2O5 + SO3 = 2 NO2 + SO4
(NH4)2SO3 + KMnO4 + H2SO4 = MnSO4 + K2SO4 + (NH4)2SO4 + H2O =>
5(NH4)2SO3 + 2 KMnO4 + 3 H2SO4 = 2 MnSO4 + K2SO4 + 5(NH4)2SO4 + 3 H2O
MnO2 + KClO3 + KOH = K2MnO4 + KCl + H2O =>
3 MnO2 + KClO3 + 6 KOH = 3 K2MnO4 + KCl + 3 H2O
FeCl3(aq) + KSCN(aq) = Fe(SCN)3(aq) + KCl(aq) =>
FeCl3(aq) + 3 KSCN(aq) = Fe(SCN)3(aq) + 3 KCl(aq)
Mg(HCO3)2 + H{+} = Mg{+2} + H2CO3 =>
Mg(HCO3)2 + 2 H{+} = Mg{+2} + 2 H2CO3
C5H8O2 + NaH + HCa = C5H12O2 + NaCa =>
C5H8O2 + 2 NaH + 2 HCa = C5H12O2 + 2 NaCa
BaCO3 + HCl = BaCl2 + H2O + CO2 =>
BaCO3 + 2 HCl = BaCl2 + H2O + CO2
Mg(HCO3)2 + H{+} = Mg{+2} + H2CO3 =>
Mg(HCO3)2 + 2 H{+} = Mg{+2} + 2 H2CO3
C4H10 = C8H18 + H2 =>
2 C4H10 = C8H18 + H2
C2O2(CH3)2 + NH2CH3 = COCN(CH3)3 + H2O =>
C2O2(CH3)2 + NH2CH3 = COCN(CH3)3 + H2O
CoS2 = CoS + S2 =>
2 CoS2 = 2 CoS + S2
Zn(OH)2 + HCl = ZnCl2 + H2O =>
Zn(OH)2 + 2 HCl = ZnCl2 + 2 H2O
C4H10 = C + H =>
C4H10 = 4 C + 10 H
NH3(g) + CuSO4(s) = Cu(NH3)4SO4(s) =>
4 NH3(g) + CuSO4(s) = Cu(NH3)4SO4(s)
CO2 + NH3 = OC(NH2)2 + H2O =>
CO2 + 2 NH3 = OC(NH2)2 + H2O
NaHCO3 + HCI = NaCI + H2O + CO2 =>
NaHCO3 + HCI = NaCI + H2O + CO2
Al + Ag2(SO4)3 = Al(SO4) + Ag =>
3 Al + Ag2(SO4)3 = 3 Al(SO4) + 2 Ag
Na + CH3COOH = NaCH3COO + H2 =>
2 Na + 2 CH3COOH = 2 NaCH3COO + H2
S + NaClO + NaOH = Na2SO4 + NaCl + H2O =>
S + 3 NaClO + 2 NaOH = Na2SO4 + 3 NaCl + H2O
Mg(OH)2 = MgO + water =>
Mg(OH)2 = MgO + H2O
Al + KOH + H2O = K[Al(O2)] + H2 =>
2 Al + 2 KOH + 2 H2O = 2 K[Al(O2)] + 3 H2
Pb(NO3)2(aq) + Cu2SO4(aq) = PbSO4(s) + CuNO3(aq) =>
Pb(NO3)2(aq) + Cu2SO4(aq) = PbSO4(s) + 2 CuNO3(aq)
NaBiO3 + HCl = BiOCl + Cl2 + NaCl + H2O =>
NaBiO3 + 4 HCl = BiOCl + Cl2 + NaCl + 2 H2O
CsNO2 + NH4Br + H2O = NH4OH + CsBr + HNO2 =>
CsNO2 + NH4Br + H2O = NH4OH + CsBr + HNO2
K2CO3 + ZnCl2 = KCl + ZnCO3 =>
K2CO3 + ZnCl2 = 2 KCl + ZnCO3
Ag2S + Cl = AgCl + S =>
Ag2S + 2 Cl = 2 AgCl + S
XBa(NO3)2 + XNaCl = XNaNO3 + XBaCl2 =>
XBa(NO3)2 + 2 XNaCl = 2 XNaNO3 + XBaCl2
KOH + S(OH)2 = K2SO2 + H2O =>
2 KOH + S(OH)2 = K2SO2 + 2 H2O
CuS + NO3{-} + H{+} = Cu{+2} + S8 + NO + H2O =>
24 CuS + 16 NO3{-} + 64 H{+} = 24 Cu{+2} + 3 S8 + 16 NO + 32 H2O
AgNo3 + H2S = Ag2S + HNo3 =>
2 AgNo3 + H2S = Ag2S + 2 HNo3
MnO2 + K2CO3 + KOH = K2MnO4 + KCO + H2O =>
3 MnO2 + 2 K2CO3 + 4 KOH = 3 K2MnO4 + 2 KCO + 2 H2O
H2 + HCO3{-} + H{+} = CH4 + H2O =>
4 H2 + HCO3{-} + H{+} = CH4 + 3 H2O
Sn + H3AsO3 = H2 + Sn3(AsO3)4 =>
3 Sn + 4 H3AsO3 = 6 H2 + Sn3(AsO3)4
LiOH(aq) + HCN(aq) = Li(CN)(aq) + H2O(aq) =>
LiOH(aq) + HCN(aq) = Li(CN)(aq) + H2O(aq)
Ba + F2 = BaF2 =>
Ba + F2 = BaF2
C6H12O2 + H2O = C3H6O2 + C3H8O =>
C6H12O2 + H2O = C3H6O2 + C3H8O
K2Cr2O7 + KI + HNO3 = KNO3 + Cr(NO3)3 + I2 + H2O =>
K2Cr2O7 + 6 KI + 14 HNO3 = 8 KNO3 + 2 Cr(NO3)3 + 3 I2 + 7 H2O
HPO3 + KAsO3 + Mn(PO3)3 = H2O + As(PO3)3 + KPO3 + KMnO4 =>
4 HPO3 + 2 KAsO3 + Mn(PO3)3 = 2 H2O + 2 As(PO3)3 + KPO3 + KMnO4
Fe(NO3)3(aq) + NH4NCS(aq) = FeNCS(aq) + NH4(NO3)3 =>
Fe(NO3)3(aq) + NH4NCS(aq) = FeNCS(aq) + NH4(NO3)3
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| Équations équilibrées la veille | Équations équilibrées le lendemain |
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