Question

Ребят, нужна помощь. Решить цепочку: 1. Калий>калий гидроксид>калий карбонат>калий сульфат>барий сульфат. 2. Железо>ферум (3) хлорид>ферум (3) гидроксид>ферум (3) оксид - железо.

Answer 1

1
1) K+ NaOH=KOH+ Na
2)2KOH+H2CO3=K2CO3+2H2O
3)K2CO3+H2SO4=K2SO4+H2CO3(CO2+H2O)
4)K2SO4+(BaOH)2=2KOH+BaSO4
2
1)2Fe+3Cl2=2FeCL3
2)FeCl3+3NaOH=Fe(OH)3+3NaCl
3)2Fe(OH)3 (t)= Fe2O3+3H2O 
4) Fe2O3+6Na=3Na2O+ 2Fe

Answer 2

Chain of Reactions:

To solve the given chain of reactions, let's break it down step by step:

1. Potassium (K) to Potassium Hydroxide (KOH): - Potassium reacts with water to form potassium hydroxide. - The balanced equation for this reaction is: 2K + 2H2O → 2KOH + H2.

2. Potassium Hydroxide (KOH) to Potassium Carbonate (K2CO3): - Potassium hydroxide reacts with carbon dioxide to form potassium carbonate. - The balanced equation for this reaction is: 2KOH + CO2 → K2CO3 + H2O.

3. Potassium Carbonate (K2CO3) to Potassium Sulfate (K2SO4): - Potassium carbonate reacts with sulfuric acid to form potassium sulfate. - The balanced equation for this reaction is: K2CO3 + H2SO4 → K2SO4 + CO2 + H2O.

4. Potassium Sulfate (K2SO4) to Barium Sulfate (BaSO4): - Potassium sulfate reacts with barium chloride to form barium sulfate. - The balanced equation for this reaction is: BaCl2 + K2SO4 → BaSO4 + 2KCl.

5. Iron (Fe) to Iron(III) Chloride (FeCl3): - Iron reacts with chlorine gas to form iron(III) chloride. - The balanced equation for this reaction is: 2Fe + 3Cl2 → 2FeCl3.

6. Iron(III) Chloride (FeCl3) to Iron(III) Hydroxide (Fe(OH)3): - Iron(III) chloride reacts with water to form iron(III) hydroxide. - The balanced equation for this reaction is: FeCl3 + 3H2O → Fe(OH)3 + 3HCl.

7. Iron(III) Hydroxide (Fe(OH)3) to Iron(III) Oxide (Fe2O3): - Iron(III) hydroxide undergoes dehydration to form iron(III) oxide. - The balanced equation for this reaction is: 2Fe(OH)3 → Fe2O3 + 3H2O.

Now, let's summarize the chain of reactions:

Potassium (K) → Potassium Hydroxide (KOH) → Potassium Carbonate (K2CO3) → Potassium Sulfate (K2SO4) → Barium Sulfate (BaSO4) Iron (Fe) → Iron(III) Chloride (FeCl3) → Iron(III) Hydroxide (Fe(OH)3) → Iron(III) Oxide (Fe2O3)

Please note that the given chain of reactions is a series of chemical reactions that can occur under specific conditions. It is important to follow proper safety precautions and perform these reactions in a controlled environment.

Let me know if you have any further questions!