If you add liquid mercury the sand will float to the top of, Chemistry

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If you add liquid mercury the sand will float to the top of

Problem- You wish to separate a mixture of fine particles of gold and sand, neither of which is soluble in water. If you add liquid mercury, the sand will float to the top of the mixture, while the gold will dissolve. You can then skim the sand from the surface. Finally you can recover the gold by heating the solution to evaporate the mercury. Make a flowchart for this separation and recovery

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