Question

Give the balanced equation for solid iron(III) sulfide reacting with gaseous hydrogen chloride to form solid iron(III) chloride and hydrogen sulfide gas.

A) Fe₂S₃ (s) + HCl (g) → FeCl₃(s) + H₂S (g)
B) Fe₂(SO₄)₃ (s) + 6 HCl (g) → 2 FeCl₃(s) + 3
C) Fe₂S₃ (s) + 6 HCl (g) → 2 FeCl₃(s) + 3 H₂S
D) Fe₂S (s) + HCl (g) → FeCl₃ (s) + H₂S (g)

Answer 1

The balanced chemical reaction between solid iron(III) sulfide and gaseous hydrogen chloride to form solid iron(III) chloride and hydrogen sulfide gas is given by the balanced equation B) Fe₂S₃ (s) + 6 HCl (g) → 2 FeCl₃(s) + 3 H₂S (g).

Step-by-step explanation:

The balanced equation for the reaction of solid iron(III) sulfide with gaseous hydrogen chloride to form solid iron(III) chloride and hydrogen sulfide gas is Fe2S3 (s) + 6 HCl (g) → 2 FeCl3(s) + 3 H2S (g). This corresponds to option C. It is important to balance the chemical equation to ensure that the law of conservation of mass is obeyed, meaning the number of atoms of each element on the reactant side is equal to the number on the product side.