Question

Помогите решить цепочку превращении S - SO2 - SO3 - K2SO4 - BaSO4 - Ba(OH)2 - Fe(OH)2 - FeO - FeCl2

Answer 1

S + O₂ ⇒ SO₂ (при t°)
2SO₂ + O₂ ⇒ 2SO₃ (при 450°С , кат. V₂O₅)
SO₃ + 2KOH ⇒ K₂SO₄ + H₂O
K₂SO₄ + BaCl₂ ⇒ 2KCl + BaSO₄ осадок белого цвета
2NaOH + BaSO₄ ⇒ Na₂SO4 + Ba(OH)₂ 
Ba(OH)₂ + Fe(NO₃)₂ ⇒ Ba(NO₃)₂ + Fe(OH)₂ осадок грязно-зеленого цвета
Fe(OH)2 ⇒ FeO+H2O (при 150 - 200°С)
FeO + 2HCl (разбавл.) ⇒ FeCl₂ + H2O

Answer 2

S+O2=SO2
2SO2 +O2=2SO3
SO3+2KOH=K2SO4+H2O
K2SO4 + Ba(OH)2 = 2KOH + BaSO4
2NaOH+BaSO4=Na2SO4+Ba(OH)2
Ba(OH)2+Fe(NO3)2=Ba(NO3)2+Fe(OH)2
Fe(OH)2=FeO+H2O
FeO + 2HCl = FeCl2 + H2O

Answer 3

Цепочка превращений:

S - SO2 - SO3 - K2SO4 - BaSO4 - Ba(OH)2 - Fe(OH)2 - FeO - FeCl2

1. Sulfur (S) to Sulfur Dioxide (SO2): - Sulfur can react with oxygen to form sulfur dioxide. - The balanced chemical equation for this reaction is: S + O2 -> SO2. - This reaction occurs when sulfur is burned in the presence of oxygen. - The oxidation state of sulfur changes from 0 in elemental sulfur to +4 in sulfur dioxide.

2. Sulfur Dioxide (SO2) to Sulfur Trioxide (SO3): - Sulfur dioxide can react with oxygen to form sulfur trioxide. - The balanced chemical equation for this reaction is: 2SO2 + O2 -> 2SO3. - This reaction is an example of an oxidation reaction, where the oxidation state of sulfur increases from +4 in sulfur dioxide to +6 in sulfur trioxide.

3. Sulfur Trioxide (SO3) to Potassium Sulfate (K2SO4): - Sulfur trioxide can react with potassium hydroxide to form potassium sulfate. - The balanced chemical equation for this reaction is: SO3 + 2KOH -> K2SO4 + H2O. - This reaction is an example of a neutralization reaction, where an acid (SO3) reacts with a base (KOH) to form a salt (K2SO4) and water (H2O).

4. Potassium Sulfate (K2SO4) to Barium Sulfate (BaSO4): - Potassium sulfate can react with barium chloride to form barium sulfate. - The balanced chemical equation for this reaction is: K2SO4 + BaCl2 -> BaSO4 + 2KCl. - This reaction is an example of a double displacement reaction, where the cations and anions of two compounds switch places to form two new compounds.

5. Barium Sulfate (BaSO4) to Barium Hydroxide (Ba(OH)2): - Barium sulfate can react with sodium hydroxide to form barium hydroxide. - The balanced chemical equation for this reaction is: BaSO4 + 2NaOH -> Ba(OH)2 + Na2SO4. - This reaction is also an example of a double displacement reaction.

6. Barium Hydroxide (Ba(OH)2) to Iron(II) Hydroxide (Fe(OH)2): - Barium hydroxide can react with iron(II) chloride to form iron(II) hydroxide. - The balanced chemical equation for this reaction is: Ba(OH)2 + FeCl2 -> Fe(OH)2 + BaCl2. - This reaction is another example of a double displacement reaction.

7. Iron(II) Hydroxide (Fe(OH)2) to Iron(II) Oxide (FeO): - Iron(II) hydroxide can undergo dehydration to form iron(II) oxide. - The balanced chemical equation for this reaction is: 2Fe(OH)2 -> FeO + H2O. - This reaction involves the loss of water molecules from the iron(II) hydroxide compound.

8. Iron(II) Oxide (FeO) to Iron(II) Chloride (FeCl2): - Iron(II) oxide can react with hydrochloric acid to form iron(II) chloride. - The balanced chemical equation for this reaction is: FeO + 2HCl -> FeCl2 + H2O. - This reaction is an example of an acid-base reaction, where the iron(II) oxide acts as a base and reacts with the hydrochloric acid.

Please note that the reactions mentioned above are simplified representations of the chemical transformations. In reality, there might be additional factors or conditions that can affect the reactions.