Industrial wastewater from a battery recycling facility contains dissolved lead(II) ions, Pb2+\text{Pb}^{2+}Pb2+, which represent a severe environmental hazard if discharged into local ecosystems. Sodium iodide is added to the wastewater to precipitate the lead as insoluble lead(II) iodide.
Complete the ionic equation for this precipitation reaction.
..................+2I−→.................. \text{..................} + 2\text{I}^- \rightarrow \text{..................} ..................+2I−→..................
