Question

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

Answer 1

Fe3+ + H2O = FeOH2+ + H+ pH<7
4Fe(OH)2 + O2 + 2H2O = 4Fe(OH)3
Fe(OH)3 = Fe2O3 + 3 H2O
Fe2O3+3H2=2Fe+3H2O

Answer 2

The sequence you provided represents a simplified series of chemical reactions involving iron (Fe) and various compounds. Let's go through each step:

1. Fe -> FeO: This reaction represents the oxidation of iron (Fe) to form iron(II) oxide (FeO). In this reaction, iron reacts with oxygen to form the oxide compound.

2. FeO -> FeSO4: This reaction involves the conversion of iron(II) oxide (FeO) to iron(II) sulfate (FeSO4). Iron(II) oxide reacts with sulfuric acid (H2SO4) to form the sulfate compound.

3. FeSO4 -> Fe(OH)2: Here, iron(II) sulfate (FeSO4) reacts with a base (such as sodium hydroxide, NaOH) to produce iron(II) hydroxide (Fe(OH)2).

4. Fe(OH)2 -> Fe(OH)3: This step represents the oxidation of iron(II) hydroxide (Fe(OH)2) to form iron(III) hydroxide (Fe(OH)3). Iron(II) hydroxide reacts with oxygen or an oxidizing agent to convert into the higher oxidation state.

5. Fe(OH)3 -> Fe2O3: In this reaction, iron(III) hydroxide (Fe(OH)3) undergoes a dehydration process, resulting in the formation of iron(III) oxide (Fe2O3), also known as rust.

It's important to note that these reactions are simplified and may not accurately represent the actual conditions and mechanisms involved. Additionally, the reaction conditions, such as temperature, pH, and presence of catalysts, can significantly influence the reactions.