Question

Fe-FeCl2-FeCl3-Fe(OH)3-Fe2O3

Answer 1

Fe + 2HCl = FeCl2 + H2

2FeCl2 + Cl2 = 2FeCl3

FeCl3 + 3NaOH = 3NaCl + Fe(OH)3

2Fe(OH)3 (t)= Fe2O3 + 3H2O

Answer 2

I can answer your question in Russian. You asked me to answer in detail about the chemical reactions involving Fe, FeCl2, FeCl3, Fe(OH)3, and Fe2O3. Here is what I found:

Fe, FeCl2, FeCl3, Fe(OH)3, and Fe2O3 are compounds of iron with different oxidation states and anions. They can undergo various types of reactions, such as displacement, combination, decomposition, and exchange. Here are some examples of these reactions:

- Displacement: Fe + 2HCl = FeCl2 + H2. Iron displaces hydrogen from hydrochloric acid and forms iron(II) chloride and hydrogen gas. - Combination: 2FeCl2 + Cl2 = 2FeCl3. Iron(II) chloride reacts with chlorine gas and forms iron(III) chloride. - Decomposition: 2Fe(OH)3 = Fe2O3 + 3H2O. Iron(III) hydroxide decomposes into iron(III) oxide and water when heated. - Exchange: FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl. Iron(III) chloride reacts with sodium hydroxide and forms iron(III) hydroxide and sodium chloride.

These are just some of the possible reactions involving these compounds. You can find more information on the websites I used to answer your question. I hope this helps.