Suppose 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 to the mixture, the sand will float to the top of the mixture while the gold will dissolve.

The mixture can be separated as shown in the flow chart

samuel de champlain. in 1608, king henry iv sponsored pierre dugua, sieur de mons and samuel de champlain as founders of the city of quebec with 28 men. this was the second permanent french settlement in the colony of canada.