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Question
What happens when potassium iodide solution is mixed with lead nitrate solution? Write balanced chemical equations to support your answer.
Chemical Equations/Structures
Short Answer
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Solution
When potassium iodide (KI) solution is mixed with lead nitrate Pb(NO3)2 solution, a yellow precipitate of lead iodide (PbI2) is formed.
\[\ce{Pb(NO3)2_{(aq)} + 2KI_{(aq)} -> PbI2_{(s)} + 2KNO3_{(aq)}}\]
This is a double displacement reaction in which insoluble lead iodide (yellow precipitate) is formed.
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