Question

Fe→FeS→H2S→K2S→H2S→S→SO2.

Answer 1

Fe + S = FeS

FeS + 2HCl = H₂S + FeCl₂

H₂S + 2KOH = K₂S + 2H₂O

K₂S + 2HNO₃ = 2KNO₃ + H₂S

2H₂S + O₂ = 2S + 2H₂O

S + O₂ = SO₂

Answer 2

The sequence you provided describes a series of chemical reactions involving the transformation of iron (Fe) into sulfur dioxide (SO2) through several intermediate steps. Let's go through each step in the sequence:

1. Fe (iron) reacts with S (sulfur) to form FeS (iron sulfide): Fe + S → FeS

2. FeS reacts with H2S (hydrogen sulfide) to form K2S (potassium sulfide) and Fe (iron): FeS + H2S → K2S + Fe

3. K2S reacts with H2S to produce H2S (hydrogen sulfide) and S (sulfur): K2S + H2S → H2S + S

4. H2S reacts with S to form SO2 (sulfur dioxide): H2S + S → SO2

Each reaction involves the transformation of certain reactants into products, resulting in the overall conversion of iron (Fe) into sulfur dioxide (SO2).