| Équations équilibrées la veille | Équations équilibrées le lendemain |
HClO4 + NH4OH = NH4ClO4 + H2O
N2O2 + K2Cr2O7 + H2SO4 = N2O3 + Cr2(SO4)3 + K2SO4 + H2O =>
3 N2O2 + K2Cr2O7 + 4 H2SO4 = 3 N2O3 + Cr2(SO4)3 + K2SO4 + 4 H2O
OH{-} + Cr{3+} + NO3{-} = CrO4{2-} + NO2{-} + H2O =>
10 OH{-} + 2 Cr{3+} + 3 NO3{-} = 2 CrO4{2-} + 3 NO2{-} + 5 H2O
KOH + C8H5KO4 = KC8H4KO4 + H2O =>
KOH + C8H5KO4 = KC8H4KO4 + H2O
PCl3 + HNO3 = H3PO4 + Cl2 + NO2 + H2O =>
2 PCl3 + 10 HNO3 = 2 H3PO4 + 3 Cl2 + 10 NO2 + 2 H2O
HClO4 + NH4OH = NH4ClO4 + H2O =>
HClO4 + NH4OH = NH4ClO4 + H2O
C12H22O11(s) = C(s) + H2O =>
C12H22O11(s) = 12 C(s) + 11 H2O
(NH4NO3) = N2 + O2 + H2O =>
2(NH4NO3) = 2 N2 + O2 + 4 H2O
C12H22O11(s) = C(s) + H2O =>
C12H22O11(s) = 12 C(s) + 11 H2O
FeOH2O = FeO(OH)H =>
FeOH2O = FeO(OH)H
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
Pb4 + Au3(NO3)3 = Pb3(NO3)4 + Au3 =>
9 Pb4 + 16 Au3(NO3)3 = 12 Pb3(NO3)4 + 16 Au3
Na2SiO4 + FeCl3 = Fe2(SiO4)3 + NaCl =>
3 Na2SiO4 + 2 FeCl3 = Fe2(SiO4)3 + 6 NaCl
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
(NH4)2SO4 + NaI = NH4I + Na2SO4 =>
(NH4)2SO4 + 2 NaI = 2 NH4I + Na2SO4
CuSO4(aq) + KCl(aq) = CuCl2 + K2SO4 =>
CuSO4(aq) + 2 KCl(aq) = CuCl2 + K2SO4
C6H5Cl + C2HCl3O = C14H9Cl5 + H2O =>
2 C6H5Cl + C2HCl3O = C14H9Cl5 + H2O
BaO + Cl2 = BaCl2 + O =>
BaO + Cl2 = BaCl2 + O
MgOHCl = Mg(H)OCl =>
MgOHCl = Mg(H)OCl
(NH4)2SO4 + NaI = NH4I + Na2SO4 =>
(NH4)2SO4 + 2 NaI = 2 NH4I + Na2SO4
C12H22O11(s) = C + H2O =>
C12H22O11(s) = 12 C + 11 H2O
C12H22O11(s) = C(s) + H2O(l) =>
C12H22O11(s) = 12 C(s) + 11 H2O(l)
Ba(NO3)2 + K2SO4 = K2NO3 + Ba(SO4)2 =>
Ba(NO3)2 + 2 K2SO4 = 2 K2NO3 + Ba(SO4)2
BaO + Cl2 = BaCl2 + O =>
BaO + Cl2 = BaCl2 + O
CN{-} + OCl{-} = OCN{-} + Cl{-} =>
CN{-} + OCl{-} = OCN{-} + Cl{-}
Pb(NO3)2 + NaI = PbI2 + Na(NO3) =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 Na(NO3)
CuSO4(aq) + KCl(aq) = CuCl2(s) + K2SO4(aq) =>
CuSO4(aq) + 2 KCl(aq) = CuCl2(s) + K2SO4(aq)
NB = BN =>
NB = BN
Al2O3 + K2O = K3AlO3 =>
Al2O3 + 3 K2O = 2 K3AlO3
AlCl3 + Na2CO3 + H2O = Al(OH)3 + CO2 + NaCl =>
2 AlCl3 + 3 Na2CO3 + 3 H2O = 2 Al(OH)3 + 3 CO2 + 6 NaCl
C12H22O11(s) = C(s) + H2O(l) =>
C12H22O11(s) = 12 C(s) + 11 H2O(l)
BaOCO2 = BaCO3 =>
BaOCO2 = BaCO3
AlCl3 + Na2CO3 + H2O = Al(OH)3 + CO2 + NaCl =>
2 AlCl3 + 3 Na2CO3 + 3 H2O = 2 Al(OH)3 + 3 CO2 + 6 NaCl
C6H5CH2OH + K2Cr2O7 + H2SO4 = C6H5CHO + Cr2(SO4)3 + K2SO4 + H2O =>
3 C6H5CH2OH + K2Cr2O7 + 4 H2SO4 = 3 C6H5CHO + Cr2(SO4)3 + K2SO4 + 7 H2O
C12H22O11(s) = C(s) + H2O(g) =>
C12H22O11(s) = 12 C(s) + 11 H2O(g)
Mg + NH3 = H2 + Mg3N2 =>
3 Mg + 2 NH3 = 3 H2 + Mg3N2
Pb(NO3)2 + NaI = PbI2 + Na(NO3) =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 Na(NO3)
AlCl3 + Na2CO3 + H2O = Al(OH)3 + NaCl + H2CO3 =>
2 AlCl3 + 3 Na2CO3 + 6 H2O = 2 Al(OH)3 + 6 NaCl + 3 H2CO3
H2SO4 + NH4OH = (NH4)2SO4 + H2O(l) =>
H2SO4 + 2 NH4OH = (NH4)2SO4 + 2 H2O(l)
Sr + Br2 = SrBr =>
2 Sr + Br2 = 2 SrBr
BaO + Cl2 = BaCl2 + O =>
BaO + Cl2 = BaCl2 + O
FeCl3 + MnO2 = Fe2O3 + MnCl2 + Cl2 =>
4 FeCl3 + 3 MnO2 = 2 Fe2O3 + 3 MnCl2 + 3 Cl2
K2Cr2O7 + IK + H2SO4 = Cr2(SO4)3 + K2SO4 + I + H2O =>
K2Cr2O7 + 6 IK + 7 H2SO4 = Cr2(SO4)3 + 4 K2SO4 + 6 I + 7 H2O
Mg + NH3 = H2 + Mg3N2 =>
3 Mg + 2 NH3 = 3 H2 + Mg3N2
C12H22O11(s) = C(s) + H2O =>
C12H22O11(s) = 12 C(s) + 11 H2O
C4H6O6 + H2 = C4H6O4 + H2O =>
C4H6O6 + 2 H2 = C4H6O4 + 2 H2O
Na2SO4 + HOH = NaOH + H2SO4 =>
Na2SO4 + 2 HOH = 2 NaOH + H2SO4
C12H22O11(s) = C(s) + H2O(l) =>
C12H22O11(s) = 12 C(s) + 11 H2O(l)
C7H5N3O6(s) + O2(g) = CO2(g) + H2O(g) + N2(g) =>
4 C7H5N3O6(s) + 21 O2(g) = 28 CO2(g) + 10 H2O(g) + 6 N2(g)
Sr + Br2 = SrBr =>
2 Sr + Br2 = 2 SrBr
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