Question

Совершить цепочку превращенийFe → FeCl₂ → Fe(OH)₂ → FeO → FeSO₄

Answer 1

Fe + 2HCl ----->  FeCl2 + H2
FeCl2 + 2NaOH ---->  Fe(OH)2 + 2NaCl
                  t
Fe(OH)2 ------> FeO + H2O
FeO  + H2SO4  ----> FeSO4 + H2O

Answer 2

Fe + 2HCl = FeCl2 + H2↑
FeCl2 + 2KOH = Fe(OH)2↓ + 2KCl
Fe(OH)2=t°=FeO + H2O
FeO + H2SO4 = FeSO4 + H2O

Answer 3

Chain of Transformations: Fe → FeCl₂ → Fe(OH)₂ → FeO → FeSO₄

To understand the chain of transformations from Fe to FeSO₄, let's break it down step by step:

1. Fe → FeCl₂: The first transformation is the conversion of Fe to FeCl₂. This can be achieved by reacting iron (Fe) with chlorine gas (Cl₂) to form iron(II) chloride (FeCl₂).

2. FeCl₂ → Fe(OH)₂: The second transformation involves converting FeCl₂ to Fe(OH)₂. This can be done by adding a base, such as sodium hydroxide (NaOH), to the FeCl₂ solution. The reaction results in the formation of iron(II) hydroxide (Fe(OH)₂).

3. Fe(OH)₂ → FeO: The third transformation is the conversion of Fe(OH)₂ to FeO. This can be achieved by heating Fe(OH)₂, which leads to the removal of water molecules and the formation of iron(II) oxide (FeO).

4. FeO → FeSO₄: The final transformation involves converting FeO to FeSO₄. This can be done by reacting FeO with sulfuric acid (H₂SO₄) to form iron(II) sulfate (FeSO₄).

In summary, the chain of transformations from Fe to FeSO₄ involves the conversion of iron (Fe) to iron(II) chloride (FeCl₂), then to iron(II) hydroxide (Fe(OH)₂), followed by the formation of iron(II) oxide (FeO), and finally the conversion to iron(II) sulfate (FeSO₄).

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