Question

Fe → FeCl3 → Fe(OH)3 → FeCl3

Answer 1

Fe → FeCl3 → Fe(OH)3 → FeCl3

1) 2Fe + 3Cl₂ = 2FeCl₃

2) FeCl₃ + 3NaOH = 3NaCl + Fe(OH)₃↓(осадок бурого цвета)

3) Fe(OH)₃ + 3HCl = FeCl₃ + 3H₂O

Answer 2

It looks like you've listed a series of chemical reactions involving iron (Fe), iron chloride (FeCl3), and iron hydroxide (Fe(OH)3), along with a reversible reaction involving FeCl3. Let's break down these reactions step by step:

1. Formation of Iron (III) Chloride (FeCl3): The first reaction seems to involve the formation of iron(III) chloride (FeCl3) from elemental iron (Fe). This reaction can be represented as:

   Fe + 3 Cl2 → 2 FeCl3

   In this reaction, iron reacts with chlorine gas to produce iron(III) chloride.

2. Formation of Iron (III) Hydroxide (Fe(OH)3): The second reaction involves the reaction of iron(III) chloride (FeCl3) with water to form iron(III) hydroxide (Fe(OH)3):

   FeCl3 + 3 H2O → Fe(OH)3 + 3 HCl

   In this reaction, iron(III) chloride reacts with water to produce iron(III) hydroxide and hydrochloric acid.

3. Reformation of Iron (III) Chloride (FeCl3): The third reaction appears to be a reversible reaction where iron(III) hydroxide reacts with hydrochloric acid (HCl) to regenerate iron(III) chloride and water:

   Fe(OH)3 + 3 HCl ⇌ FeCl3 + 3 H2O

   This is a reversible reaction, meaning it can proceed in either direction depending on the reaction conditions.

Each of these reactions represents a specific transformation of iron and its compounds. If you have any specific questions about these reactions or their applications, feel free to ask!