Question

ZnS(s) + 2HCl (aq) →ZnCl2 (aq) + H2S(g) what type of double displacement reaction?

Answer 1

Answer:

Zinc sulfide is extremely insoluble in water, but reacts with acids. You will immediately notice that hydrogen sulfide gas is a product, and you will wish you had done this in the fume hood.

ZnS(s) + 2HCl(aq) → ZnCl2(aq) + H2S(g)

Some of the H2S produced will remain in solution since H2S is somewhat soluble in water. HS- will also be a product in solution.

H2S(g) <=> H2S(aq) <=> H+(aq) + HS-(aq)

An excess of acid will move the equilibria toward the left.xplanation: