Considering the following precipitation reaction:
Pb(NO₃) ₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)
What is the correct complete ionic equation?

Question

Considering the following precipitation reaction: Pb(NO₃)₂(aq)+ 2KI(aq)→ PbI₂(s)+ 2KNO₃(aq) What is the correct complete ionic equation?

Quizplus · Accepted Answer

The correct complete ionic equation for the given precipitation reaction would include all soluble ions written as their separate ions and all insoluble or weak electrolytes written as their molecular formulas. Thus, the correct complete ionic equation would be:
Pb2+(aq) + 2NO3-(aq) + 2K+(aq) + 2I-(aq) → PbI2(s) + 2K+(aq) + 2NO3-(aq)
Option C is the closest to this equation, although it includes incorrect subscripts for the nitrate ion (NO3 instead of NO3-). All other options are incorrect in various ways.

Considering the Following Precipitation Reaction