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Exhibition Chemistry: Golden rain

Description

The precipitation of lead iodide from a solution of potassium iodide and lead nitrate is so dramatic and engaging it can be used with both 11–14 and 16–18 year old students. For younger students, you can use the reaction to introduce ionic bonding and for the older ones they can be asked to sketch particle diagrams to explain what they are seeing.
golden-rain

ADDITIONAL INFORMATION