Question

Fe -> FeCl₂ -> Fe(OH)₂ -> FeO -> Fe -> Fe₂(SO₄)₃ -> Fe(OH)₃ -> Fe₂O₃ -> FeCl₃ -> FePO₄

Answer 1

$Fe=>FeCl_2=>Fe(OH)_2=>FeO=>Fe=>Fe_2(SO_4)_3=>Fe(OH)_3\\=>Fe_2O_3=>FeCl_3=>FePO_4\\1) Fe+2HCl=>FeCl_2+H_2\\2) FeCl_2+2NaOH=>Fe(OH)_2\downarrow+2NaCl\\3) Fe(OH)_2=>FeO+H_2O\\4) 2FeO=>2Fe+O_2\\5) 4Fe+3O_2+6H_2SO_4=>2Fe_2(SO_4)_3+6H_2O\\6) Fe_2(SO_4)_3+6NaOH=>2Fe(OH)_3\downarrow+3Na_2SO_4\\7) 2Fe(OH)_3=>Fe_2O_3+3H_2O\\8) Fe_2O_3+6HCl=>2FeCl_3+3H_2O\\9)FeCl_3+H_3PO_4=>FePO_4+3HCl$

Answer 2

It looks like you've provided a sequence of chemical reactions involving iron (Fe) and various compounds. Let me explain each reaction step by step:

1. Fe (Iron) → This represents elemental iron, which is the pure form of iron.

2. Fe → FeCl₂ (Iron Chloride) - This reaction indicates the formation of Iron(II) chloride (FeCl₂) by reacting elemental iron with chlorine gas (Cl₂). The balanced chemical equation for this reaction is: Fe + Cl₂ → FeCl₂

3. FeCl₂ → Fe(OH)₂ (Iron(II) hydroxide) - This reaction shows the formation of Iron(II) hydroxide by treating Iron(II) chloride with a base (e.g., sodium hydroxide, NaOH). The balanced chemical equation for this reaction is: FeCl₂ + 2 NaOH → Fe(OH)₂ + 2 NaCl

4. Fe(OH)₂ → FeO (Iron(II) oxide) - This reaction represents the conversion of Iron(II) hydroxide into Iron(II) oxide by a dehydration process, usually by heating. The balanced chemical equation for this reaction is: Fe(OH)₂ → FeO + H₂O

5. FeO → Fe (Iron) - This reaction indicates the reduction of Iron(II) oxide back to elemental iron. The balanced chemical equation for this reaction is: FeO + H₂ → Fe + H₂O

6. Fe → Fe₂(SO₄)₃ (Iron(III) sulfate) - This reaction involves the oxidation of elemental iron to Iron(III) sulfate by the reaction with sulfuric acid (H₂SO₄). The balanced chemical equation for this reaction is: 2 Fe + 3 H₂SO₄ → Fe₂(SO₄)₃ + 3 H₂

7. Fe₂(SO₄)₃ → Fe(OH)₃ (Iron(III) hydroxide) - This reaction shows the formation of Iron(III) hydroxide by treating Iron(III) sulfate with a base (e.g., sodium hydroxide, NaOH). The balanced chemical equation for this reaction is: Fe₂(SO₄)₃ + 6 NaOH → 2 Fe(OH)₃ + 3 Na₂SO₄

8. Fe(OH)₃ → Fe₂O₃ (Iron(III) oxide) - This reaction represents the dehydration of Iron(III) hydroxide to form Iron(III) oxide (also known as hematite). The balanced chemical equation for this reaction is: 2 Fe(OH)₃ → Fe₂O₃ + 3 H₂O

9. Fe₂O₃ → FeCl₃ (Iron(III) chloride) - This reaction involves the reaction of Iron(III) oxide with hydrochloric acid (HCl) to form Iron(III) chloride. The balanced chemical equation for this reaction is: Fe₂O₃ + 6 HCl → 2 FeCl₃ + 3 H₂O

10. FeCl₃ → FePO₄ (Iron(III) phosphate) - This reaction represents the formation of Iron(III) phosphate by reacting Iron(III) chloride with a phosphate-containing compound. The balanced chemical equation for this reaction would depend on the specific phosphate compound used.

It's important to note that some of these reactions might be simplified, and actual reactions might require specific conditions, catalysts, or reagents to proceed. Additionally, the stoichiometry and conditions of each reaction may vary, depending on the reaction conditions and the reactants involved.