Lead iodide precipitate can be produced by reacting potassium iodide (`KI` ) with lead II nitrate (`~Pb(NO_3)_2` ). The chemical equation for this reaction is:
`~2KI` + `~Pb(NO_3)_2` -> `~PbI_2` + `~2KNO_3`
This is a double replacement reaction that results in the formation of a precipitate. This type of reaction can also be called a precipitation reaction.
The solubility of a substance can be determined by looking at a list of solubility rules. A list of solubility rules can be found in your textbook or online. The solubility rules tell us that `~PbI_2` is insoluble and will form a solid precipitate.
Therefore, the word equation for this reaction would be:
Aqueous potassium iodide reacts with aqueous lead II nitrate to produce solid lead II iodide and aqueous potassium nitrate.
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