| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 NaH2O = 2 NaOH + H2
HfCl4 + H2O = HfO2 + HCl =>
HfCl4 + 2 H2O = HfO2 + 4 HCl
K2S2O5 + H2O = HSO3{-} + K{+} =>
K2S2O5 + H2O = 2 HSO3{-} + 2 K{+}
Cr2O7{2-} + H2S + H{+} = Cr{3+} + S + H2O =>
Cr2O7{2-} + 3 H2S + 8 H{+} = 2 Cr{3+} + 3 S + 7 H2O
KNO2 + NaBiO3 + H2SO4 = Bi2(SO4)3 + KNO3 + Na2SO4 + H2O =>
2 KNO2 + 2 NaBiO3 + 4 H2SO4 = Bi2(SO4)3 + 2 KNO3 + Na2SO4 + 4 H2O
NaBr + C6H14 + Cl2 = NaCl + CBr2 + H =>
12 NaBr + C6H14 + 6 Cl2 = 12 NaCl + 6 CBr2 + 14 H
H3PO4 + LiOH = H2O + Li3PO4 =>
H3PO4 + 3 LiOH = 3 H2O + Li3PO4
Fe + HO2 = Fe3O4 + H2 =>
3 Fe + 2 HO2 = Fe3O4 + H2
MnO(OH)2 + HCl = MnCl2 + Cl2 + H2O =>
MnO(OH)2 + 4 HCl = MnCl2 + Cl2 + 3 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
FeI3(aq) + Cl2(g) = FeCl3(aq) + I2(s) =>
2 FeI3(aq) + 3 Cl2(g) = 2 FeCl3(aq) + 3 I2(s)
Cr2O5 + H2 = Cr + H2O =>
Cr2O5 + 5 H2 = 2 Cr + 5 H2O
Mn(No2)2 + BeCl2 = Be(No2)2 + MnCl2 =>
Mn(No2)2 + BeCl2 = Be(No2)2 + MnCl2
PbS + H2SO4 = PbSO4 + H2S =>
PbS + H2SO4 = PbSO4 + H2S
H2C4H4O4 + NaOH = NaHC4H4O4 + H2O =>
H2C4H4O4 + NaOH = NaHC4H4O4 + H2O
KCN(aq) + HCl(aq) = KCl(aq) + HCN(g) =>
KCN(aq) + HCl(aq) = KCl(aq) + HCN(g)
P4O10(s) + H2O(l) = H3PO4(aw) =>
P4O10(s) + 6 H2O(l) = 4 H3PO4(aw)
C2H5COOH + Na2CO3 = C2H5COONa + CO2 + H2O =>
2 C2H5COOH + Na2CO3 = 2 C2H5COONa + CO2 + H2O
Zn(NO3)2 + Na3(PO4) = Zn3(PO4)2 + NaNO3 =>
3 Zn(NO3)2 + 2 Na3(PO4) = Zn3(PO4)2 + 6 NaNO3
Li2CO3 + MgO + H3BO3 = (LiMg)2(B4O7)3 + CO2 + H2O =>
Li2CO3 + 2 MgO + 12 H3BO3 = (LiMg)2(B4O7)3 + CO2 + 18 H2O
C5H13N + H2O = C5H12N + H3O =>
C5H13N + H2O = C5H12N + H3O
Cr2O5 + H2 = Cr + H2O =>
Cr2O5 + 5 H2 = 2 Cr + 5 H2O
CoCl3 + AgNO3 = AgCl + Co(NO3)3 =>
CoCl3 + 3 AgNO3 = 3 AgCl + Co(NO3)3
HN03 + NaOH = H2O + NaN3 =>
HN03 + NaOH = H2O + NaN3
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
C3H4 = H3CCCH =>
C3H4 = H3CCCH
KOH + H2SO4 = KHSO4 + H2O =>
KOH + H2SO4 = KHSO4 + H2O
Ca + FeF3 = Ca3F3 + Fe =>
3 Ca + FeF3 = Ca3F3 + Fe
HBr + Mg(OH)2 = MgBr2 + H2O =>
2 HBr + Mg(OH)2 = MgBr2 + 2 H2O
AlCl3 = Al + Cl2 =>
2 AlCl3 = 2 Al + 3 Cl2
FeSO4 + K3[Fe(Cn)6] = Fe3[Fe(Cn)6]2 + K2SO4 =>
3 FeSO4 + 2 K3[Fe(Cn)6] = Fe3[Fe(Cn)6]2 + 3 K2SO4
K{+} + C{2+} = K{2+} + C{+} =>
K{+} + C{2+} = K{2+} + C{+}
Fe(NO3)3(aq) + NaOH = Fe(OH)3 + NaNO3 =>
Fe(NO3)3(aq) + 3 NaOH = Fe(OH)3 + 3 NaNO3
C48H96O9 + C2H6O = C3H8O3 + C18H36O2 =>
34 C48H96O9 + 66 C2H6O = 66 C3H8O3 + 87 C18H36O2
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
HNO3 + NaHCO3 = NaNO3 + H2O + CO2 =>
HNO3 + NaHCO3 = NaNO3 + H2O + CO2
Fe(OH)2 + HC2H3O3 = Fe(C2H3O3)2 + H2O =>
Fe(OH)2 + 2 HC2H3O3 = Fe(C2H3O3)2 + 2 H2O
MnO2(c) + HCl(aq) = MnCl4(aq) + H2O(l) =>
MnO2(c) + 4 HCl(aq) = MnCl4(aq) + 2 H2O(l)
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
SFe + HNO3 = NO + (SO4)Fe + H2O =>
3 SFe + 8 HNO3 = 8 NO + 3(SO4)Fe + 4 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
ZnCO3 + Cu2Cr2O7 = Cu2CO3 + ZnCr2O7 =>
ZnCO3 + Cu2Cr2O7 = Cu2CO3 + ZnCr2O7
LiOH + H3PO4 = LiPO4 + H2O + H2 =>
LiOH + H3PO4 = LiPO4 + H2O + H2
C3H8 = C2H4CH4 =>
C3H8 = C2H4CH4
Cu2SO4 + AlI3 = CuI(s) + Al2(SO4)3(aq) =>
3 Cu2SO4 + 2 AlI3 = 6 CuI(s) + Al2(SO4)3(aq)
Ca + CO3(s) + HCl(aq) = CaCl2(aq) + CO2(g) + H2O(l) =>
Ca + CO3(s) + 2 HCl(aq) = CaCl2(aq) + CO2(g) + H2O(l)
Pb(OH)2 + HNO3 = Pb(NO3)2 + H2O =>
Pb(OH)2 + 2 HNO3 = Pb(NO3)2 + 2 H2O
N2 + O2 + H2O = HNO3 =>
2 N2 + 5 O2 + 2 H2O = 4 HNO3
C + S8 = CS2 =>
4 C + S8 = 4 CS2
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