Question

Fe-Fe3O4-Fe-FeSO4-Fe(OH)2-Fe(OH)3

Answer 1

на,лови!!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

3Fe(порошок) + 2O2 = Fe3O4    

 

4H2 + Fe3O4 = 3Fe + 4H2O 

 

 

Fe + H2SO4(разб.) = FeSO4 + H2↑  

 

 

FeSO4 + 2NaOH(разб.) = Fe(OH)2↓ + Na2SO4  

 

 

4Fe(OH)2 + O2 + 2H2O = 4Fe(OH)3

Answer 3

Fe-Fe3O4-Fe-FeSO4-Fe(OH)2-Fe(OH)3

The sequence Fe-Fe3O4-Fe-FeSO4-Fe(OH)2-Fe(OH)3 represents a series of chemical reactions involving iron (Fe) and its compounds. Let's break down each step:

1. Fe: Fe represents elemental iron, which is a chemical element with the symbol Fe and atomic number 26.

2. Fe3O4: Fe3O4, also known as magnetite, is a black iron oxide mineral with the formula Fe3O4. It is a naturally occurring magnetic material.

3. Fe-FeSO4: The reaction between Fe3O4 and sulfuric acid (H2SO4) can produce FeSO4, also known as ferrous sulfate. This reaction involves the dissolution of Fe3O4 in sulfuric acid, resulting in the formation of FeSO4 and water.

4. FeSO4-Fe(OH)2: Ferrous sulfate (FeSO4) can undergo a reaction with a base, such as sodium hydroxide (NaOH), to form Fe(OH)2, also known as ferrous hydroxide. This reaction involves the displacement of the sulfate ion (SO4) by the hydroxide ion (OH).

5. Fe(OH)2-Fe(OH)3: Ferrous hydroxide (Fe(OH)2) can undergo oxidation to form ferric hydroxide (Fe(OH)3). This reaction involves the loss of electrons by Fe(OH)2, resulting in the formation of Fe(OH)3.

Please note that the specific conditions and reactants used in each step may vary, and additional reactions may occur depending on the reaction conditions and the presence of other substances.