Final answer:
The precipitation reaction between Na₂S and ZnSO₄ to form ZnS has molecular, total ionic, and net ionic equations showcasing the reactants and products, with the net ionic equation emphasizing the formation of the insoluble precipitate ZnS.
Step-by-step explanation:
Completing a precipitation reaction involves finding the molecular, total ionic, and net ionic equations. For the reaction between sodium sulfide (Na2S) and zinc sulfate (ZnSO4) to form a precipitate, the balanced molecular equation is:
Na2S(aq) + ZnSO4(aq) → ZnS(s) + 2Na2SO4(aq)
The total ionic equation shows all the soluble species as ions:
2Na+(aq) + S2-(aq) + Zn2+(aq) + SO42-(aq) → ZnS(s) + 2Na+(aq) + 2SO42-(aq)
The net ionic equation shows only the species that change state:
Zn2+(aq) + S2-(aq) → ZnS(s)