Question

Fe-fecl2-fecl3-fe (oh3)

Answer 1

Fe + 2HCl = FeCl2 + H2
2FeCl2 + Cl2 = 2FeCl3
FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl

Answer 2

Fe-FeCl2-FeCl3-Fe(OH)3

The chemical equation you provided represents a series of reactions involving iron (Fe), iron(II) chloride (FeCl2), iron(III) chloride (FeCl3), and iron(III) hydroxide (Fe(OH)3). Let's break down the reactions step by step:

1. Fe + 2 HCl → FeCl2 + H2 - In this reaction, iron (Fe) reacts with hydrochloric acid (HCl) to form iron(II) chloride (FeCl2) and hydrogen gas (H2).

2. FeCl2 + Cl2 + 2 KCl + 2 H2O → 2 KCl + 2 HCl + Fe(OH)2 + FeO(OH) [[2]](https://xn-----6kcjd7aa0cfnmaec4e.xn--p1ai/%D1%80%D0%B5%D1%88%D0%B5%D0%BD%D0%BE-%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B8%D1%82%D0%B5-%D0%BF%D1%80%D0%BE%D0%BF%D1%83%D1%81%D0%BA%D0%B8-%D0%B2-%D1%81%D1%85%D0%B5%D0%BC%D0%B0%D1%85-%D1%80%D0%B5-4/) - In this reaction, iron(II) chloride (FeCl2) reacts with chlorine gas (Cl2), potassium chloride (KCl), and water (H2O) to form potassium chloride (KCl), hydrochloric acid (HCl), iron(II) hydroxide (Fe(OH)2), and iron(III) hydroxide (FeO(OH)).

3. Fe(OH)2 + H2O → Fe(OH)3 + H2 [[6]](https://uchi.ru/otvety/questions/napisat-uravnenie-gidroliza-fecl3) - In this reaction, iron(II) hydroxide (Fe(OH)2) reacts with water (H2O) to form iron(III) hydroxide (Fe(OH)3) and hydrogen gas (H2).

Therefore, the overall reaction can be summarized as follows: Fe + 2 HCl + Cl2 + 2 KCl + 2 H2O → 2 KCl + 3 HCl + Fe(OH)3 + FeO(OH) + H2 [[2]](https://xn-----6kcjd7aa0cfnmaec4e.xn--p1ai/%D1%80%D0%B5%D1%88%D0%B5%D0%BD%D0%BE-%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B8%D1%82%D0%B5-%D0%BF%D1%80%D0%BE%D0%BF%D1%83%D1%81%D0%BA%D0%B8-%D0%B2-%D1%81%D1%85%D0%B5%D0%BC%D0%B0%D1%85-%D1%80%D0%B5-4/) [[6]](https://uchi.ru/otvety/questions/napisat-uravnenie-gidroliza-fecl3)

Please note that the reactions mentioned above are simplified representations and may not account for all possible side reactions or conditions.