Question

Which reactions will combine to produce zinc sulfide in a double replacement reaction

A Zn(s) and SO4(s)
(B) Zn(s) and H2S(ag)
(c) ZnSO(s) and Na(s)
(b) Zn(NO3)2(aq) and Na2S(aq)

Answer 1

The correct option for the reactions that will combine to produce zinc sulfide in a double replacement reaction is:

(D) Zn(NO3)2(aq) and Na2S(aq)

In this reaction, zinc nitrate (Zn(NO3)2) reacts with sodium sulfide (Na2S) to form zinc sulfide (ZnS) as a solid precipitate. The double replacement reaction occurs when the cations and anions of the two compounds switch places to form new compounds.

The balanced chemical equation for the reaction is:

Zn(NO3)2(aq) + Na2S(aq) → ZnS(s) + 2NaNO3(aq)

Zinc sulfide (ZnS) is produced as a solid precipitate in this reaction.