Question

Fe → Fe2 (S04)→FeCI3→ Fe (NO3)3 → Fe203​

Answer 1

Ответ:

Fe-->Fe2(SO4)3-->FeCl3-->Fe(NO3)3-->Fe(OH)3-->Fe2O3.

1) 2*Fe+3*H2SO4=Fe2(SO4)3+3*H2|

2*Fe(3+)+6*H(+)+3*SO4(2-)=2*Fe(3+)+3*SO4(2-)+3*H2|

6*H(+)=3*H2|

2) Fe2(SO4)3+6*HCl=2*FeCl3+3*H2SO4

2*Fe(3+)+3*SO4(2-)+6*H(+)+6*Cl(-)=2*Fe(3+)+6*Cl(-)+6*H(+)+3*SO4(2-)

3)FeCl3+3*HNO3=Fe(NO3)3+3*HCl

Fe(3+)+3*Cl(-)+3*H(+)+3*NO3(-)=Fe(3+)+3*NO3(-)+3*H(+)+3*Cl(-)

4)Fe(NO)3+3*H2O=Fe(OH)3+3*HNO3

Fe(3+)+3*NO3(-)+3*H2O=Fe(3+)+3*OH(-)+3*H(+)+3*NO3(-)

3*H2O=3*OH(-)+3*H(+)

5)2*Fe(OH)3=3*H2O+Fe2O3

2*Fe(3+)+6*OH(-)=3*H2O+2*Fe(3+)+3*O(2-)

6*OH(-)=3*H2O+3*O(2-)

Answer 2

The sequence you provided represents a series of chemical reactions involving iron (Fe) with various compounds. Let's break down each step:

1. Fe: This represents elemental iron, which is the pure form of iron.

2. Fe → Fe2(SO4): In this step, elemental iron (Fe) reacts with sulfuric acid (H2SO4) to form iron(II) sulfate (FeSO4). The balanced chemical equation for this reaction is:

   Fe + H2SO4 → FeSO4 + H2

3. FeSO4 → FeCl3: In this step, iron(II) sulfate (FeSO4) reacts with hydrochloric acid (HCl) to form iron(III) chloride (FeCl3). The balanced chemical equation for this reaction is:

   FeSO4 + 3HCl → FeCl3 + H2SO4

4. FeCl3 → Fe(NO3)3: In this step, iron(III) chloride (FeCl3) reacts with nitric acid (HNO3) to form iron(III) nitrate (Fe(NO3)3). The balanced chemical equation for this reaction is:

   FeCl3 + 3HNO3 → Fe(NO3)3 + 3HCl

5. Fe(NO3)3 → Fe2O3: In this final step, iron(III) nitrate (Fe(NO3)3) undergoes thermal decomposition to form iron(III) oxide (Fe2O3). The balanced chemical equation for this reaction is:

   2Fe(NO3)3 → Fe2O3 + 6NO2 + 3O2

Overall, the sequence represents a series of reactions that transform elemental iron into iron(III) oxide through intermediate compounds such as iron(II) sulfate, iron(III) chloride, and iron(III) nitrate.