Question

Осуществить следующие превращения:a)FeSo4-->Fe(OH)2-->Fe(OH)3-->Fe2O3-->Feb)Fe(OH)3-->Fe(NO3)3c)FeCl2-->FeCl3

Answer 1

с) FECl2 + cl --> FECL3

b)Fe(OH)3 + No3 --> Fe(NO3)3 OH ненужное обращаем внимание только на нужное уравнение

A) FES04 + OH --> FE(OH)2

 Fe(OH)2 + OH --> Fe(OH)3

 Fe(OH)3 +O (в степени -2) --> Fe2O3

FE2O3 ---> fe (в степени +3, реакция разложения)

Answer 2

a) FeSO4 -> Fe(OH)2 -> Fe(OH)3 -> Fe2O3 -> Fe

To perform the given transformations, we will start with FeSO4 and go through a series of reactions to obtain Fe.

1. FeSO4 -> Fe(OH)2: - FeSO4 can react with a base, such as NaOH, to form Fe(OH)2 and Na2SO4 [[1]](https://elar.urfu.ru/bitstream/10995/34779/1/978-5-321-02439-3.pdf). - The balanced equation for this reaction is: FeSO4 + 2NaOH -> Fe(OH)2 + Na2SO4.

2. Fe(OH)2 -> Fe(OH)3: - Fe(OH)2 can be oxidized to Fe(OH)3 by adding an oxidizing agent, such as hydrogen peroxide (H2O2) or by exposing it to air [[1]](https://elar.urfu.ru/bitstream/10995/34779/1/978-5-321-02439-3.pdf). - The balanced equation for this reaction is: 2Fe(OH)2 + H2O2 -> 2Fe(OH)3.

3. Fe(OH)3 -> Fe2O3: - Fe(OH)3 can be dehydrated to form Fe2O3 by heating it at high temperatures or by adding a dehydrating agent, such as concentrated sulfuric acid (H2SO4). - The balanced equation for this reaction is: 2Fe(OH)3 -> Fe2O3 + 3H2O.

4. Fe2O3 -> Fe: - Fe2O3 can be reduced to Fe by heating it with carbon (C) or by using a reducing agent, such as hydrogen gas (H2). - The balanced equation for this reaction is: Fe2O3 + 3C -> 2Fe + 3CO.

Therefore, the overall transformation is: FeSO4 -> Fe(OH)2 -> Fe(OH)3 -> Fe2O3 -> Fe.

b) Fe(OH)3 -> Fe(NO3)3

To transform Fe(OH)3 into Fe(NO3)3, we need to react it with nitric acid (HNO3).

1. Fe(OH)3 + 3HNO3 -> Fe(NO3)3 + 3H2O: - Fe(OH)3 reacts with nitric acid to form Fe(NO3)3 and water [[2]](http://tuymaada.lensky-kray.ru/wp-content/uploads/2017/06/tuymaada_chem_2.pdf).

Therefore, the transformation is: Fe(OH)3 -> Fe(NO3)3.

c) FeCl2 -> FeCl3

To transform FeCl2 into FeCl3, we need to oxidize it.

1. 2FeCl2 + Cl2 -> 2FeCl3: - FeCl2 reacts with chlorine gas (Cl2) to form FeCl3.

Therefore, the transformation is: FeCl2 -> FeCl3.

Please let me know if you need any further clarification or have any other questions!