Question

Fe → Fe2O3 → Fe(OH)3 → Fe2(SO3)3 → Fe PO4

Answer 1

Ответ:

4Fe+3O2=2Fe2O3

Fe2O3+3H2O=2Fe(OH)3(осадок)

2Fe(OH)3+3H2SO3=Fe2(SO3)3+6H2O

Fe2(SO3)3+2K3PO4=2FePO4+3K2SO3

Answer 2

The sequence you provided represents the transformation of iron (Fe) through various compounds. Let's break down each step:

1. Fe: This represents elemental iron, which is a metallic form of iron.

2. Fe2O3: This is iron(III) oxide, commonly known as rust. It is formed when iron reacts with oxygen in the presence of moisture. The chemical formula Fe2O3 indicates that it consists of two iron (III) ions (Fe3+) and three oxide (O2-) ions.

3. Fe(OH)3: This compound is iron(III) hydroxide, formed by the reaction of iron(III) ions with hydroxide ions (OH-). Iron(III) hydroxide is a brownish solid that can be further dehydrated to form iron(III) oxide (Fe2O3).

4. Fe2(SO3)3: This compound is iron(III) sulfite. It is formed by the reaction of iron(III) ions (Fe3+) with sulfite ions (SO3^2-). Iron(III) sulfite is a white solid.

5. FePO4: This compound is iron(III) phosphate. It is formed by the reaction of iron(III) ions (Fe3+) with phosphate ions (PO4^3-). Iron(III) phosphate is a pale yellow solid.

Please note that the reactions and compounds mentioned above are simplified representations and may involve specific conditions or other reactants in reality.