| Équations équilibrées la veille |
5 K2Cr2O7 + 6 C2H6OH + 20 H2SO4 = 5 Cr2(SO4)3 + 6 CH3COOH + 5 K2SO4 + 29 H2O
Al + H4SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H4SO4 = Al2(SO4)3 + 6 H2
ZnS + HCl = ZnCl2 + H2S = =>
ZnS + 2 HCl = ZnCl2 + H2S
K2HPO4 + AgNO3 = Ag3PO4 + KNO3 + HNO3 =>
K2HPO4 + 3 AgNO3 = Ag3PO4 + 2 KNO3 + HNO3
Na(s) + Cl2(g) = NaCl(s) =>
2 Na(s) + Cl2(g) = 2 NaCl(s)
Ag2C2 + HCl = C2H2 + AgCl =>
Ag2C2 + 2 HCl = C2H2 + 2 AgCl
H2S + NaOH = Na2S + H2O =>
H2S + 2 NaOH = Na2S + 2 H2O
HC3H5O3 + H2O = C3H5O3{-} + H3O{+} =>
HC3H5O3 + H2O = C3H5O3{-} + H3O{+}
Zn + NaOH + NaNO3 = Na2ZnO2 + NaNO2 + H2O =>
Zn + 2 NaOH + NaNO3 = Na2ZnO2 + NaNO2 + H2O
Pb(NO3)2 + NaCI = PbCI + (NO3)2Na =>
Pb(NO3)2 + NaCI = PbCI + (NO3)2Na
BCl3 + P4 + H2 = BP + HCl =>
4 BCl3 + P4 + 6 H2 = 4 BP + 12 HCl
Mg(I)2 + NaOH = Mg(OH)2 + NaI =>
Mg(I)2 + 2 NaOH = Mg(OH)2 + 2 NaI
I(g) + K(s) = KI =>
I(g) + K(s) = KI
Na2CO3 + HCl = NaCl + C2O4 + H2O =>
2 Na2CO3 + 4 HCl = 4 NaCl + C2O4 + 2 H2O
Ca(OH)2 + NaHCO3 = Na2CO3 + CaCO3 + H2O =>
Ca(OH)2 + 2 NaHCO3 = Na2CO3 + CaCO3 + 2 H2O
SO3{-2} + H{+} = SO2 + H2O =>
SO3{-2} + 2 H{+} = SO2 + H2O
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O =>
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O
LiBr + Cl2 = LiCl + Br2 =>
2 LiBr + Cl2 = 2 LiCl + Br2
BaS + Al = BaAl + S =>
BaS + Al = BaAl + S
BrO3{-} + Cl{-} + H{+} = Br2 + ClO4{-} + H2O =>
8 BrO3{-} + 5 Cl{-} + 8 H{+} = 4 Br2 + 5 ClO4{-} + 4 H2O
C2H5SH + O2 = SO2 + H2O + CO2 =>
2 C2H5SH + 9 O2 = 2 SO2 + 6 H2O + 4 CO2
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O =>
Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O
Al2S3(aq) + O2(g) = Al2O3(s) + SO2(g) =>
2 Al2S3(aq) + 9 O2(g) = 2 Al2O3(s) + 6 SO2(g)
Ni(NO3)2(aq) + BaCl2(aq) = NiCl2(aq) + Ba(NO3)2(aq) =>
Ni(NO3)2(aq) + BaCl2(aq) = NiCl2(aq) + Ba(NO3)2(aq)
Na3(PO4) + ZnCl2 = NaCl + Zn3(PO4)2 =>
2 Na3(PO4) + 3 ZnCl2 = 6 NaCl + Zn3(PO4)2
NiCl2 + Cl2 + KOH = NiOOH + KCl + H2O =>
2 NiCl2 + Cl2 + 6 KOH = 2 NiOOH + 6 KCl + 2 H2O
C3H8 + Cl = C3H7Cl + HCl =>
C3H8 + 2 Cl = C3H7Cl + HCl
CH2NH2 + O8 = CO2 + H2O + N2 =>
2 CH2NH2 + O8 = 2 CO2 + 4 H2O + N2
RbClNa = RbNaCl =>
RbClNa = RbNaCl
Cl{-} + H2O = ClO3{-} + H =>
Cl{-} + 3 H2O = ClO3{-} + 6 H
(a)NH4NO3(s) = (b)N2O(g) + (c)H2O =>
(a)NH4NO3(s) = (b)N2O(g) + 2(c)H2O
Hg(NO3)2(s) = HgO(s) + NO2(g) + O =>
Hg(NO3)2(s) = HgO(s) + 2 NO2(g) + O
Sn + HgCl2 = SnCl4 + Hg =>
Sn + 2 HgCl2 = SnCl4 + 2 Hg
Br2(g) + Ca(s) = CaBr(s) =>
Br2(g) + 2 Ca(s) = 2 CaBr(s)
BaCl2(aq) + KI(aq) = BaI2(aq) + KCl(aq) =>
BaCl2(aq) + 2 KI(aq) = BaI2(aq) + 2 KCl(aq)
FeAsS + O2 + H2SO4 = FeSO4 + H3AsO3 + S =>
2 FeAsS + O2 + 3 H2SO4 = 2 FeSO4 + 2 H3AsO3 + 3 S
CO + KOH = K2CO3 + H2 =>
CO + 2 KOH = K2CO3 + H2
(NH4)2PtCl6 = NH4Cl + Pt + Cl2 =>
(NH4)2PtCl6 = 2 NH4Cl + Pt + 2 Cl2
CuCO3*Cu(OH)2(s) + H2SO4 = CuSO4 + CO2 + H2O =>
CuCO3*Cu(OH)2(s) + 2 H2SO4 = 2 CuSO4 + CO2 + 3 H2O
Ba{2+} + CO3{2-} = BaCO3 =>
Ba{2+} + CO3{2-} = BaCO3
P2 + S = P2S =>
P2 + S = P2S
KMnO4 + HAsO2 + H2O + HCl = KCl + MnCl2 + H3AsO4 =>
2 KMnO4 + 5 HAsO2 + 2 H2O + 6 HCl = 2 KCl + 2 MnCl2 + 5 H3AsO4
NaNO2 + KI + H2SO4 = I2 + NO + Na2SO4 + K2SO4 + H2O =>
2 NaNO2 + 2 KI + 2 H2SO4 = I2 + 2 NO + Na2SO4 + K2SO4 + 2 H2O
Na3[Fe(OH)6] + H2SO4 = H2O + Fe(OH)3 + Na2SO4 =>
2 Na3[Fe(OH)6] + 3 H2SO4 = 6 H2O + 2 Fe(OH)3 + 3 Na2SO4
NaCl + HNo3 = NaNo3 + HCl =>
NaCl + HNo3 = NaNo3 + HCl
SnO2 + NaOH + H2O = Na2Sn(OH)6 =>
SnO2 + 2 NaOH + 2 H2O = Na2Sn(OH)6
KI + H2SO4 + NaNO2 = K2SO4 + Na2SO4 + I + NO + H2O =>
2 KI + 2 H2SO4 + 2 NaNO2 = K2SO4 + Na2SO4 + 2 I + 2 NO + 2 H2O
CaO + HNO3 = Ca(NO3)2 + H2O =>
CaO + 2 HNO3 = Ca(NO3)2 + H2O
HNO3 + Al(OH)3 = Al(NO3)3 + H2O =>
3 HNO3 + Al(OH)3 = Al(NO3)3 + 3 H2O
ZnCl2 + NaOH = Na2[Zn(OH)4] + NaCl =>
ZnCl2 + 4 NaOH = Na2[Zn(OH)4] + 2 NaCl
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