If a sample of material is homogeneous, then it must be a pure substance.

true
false

The statement is FALSE.

Homogeneous does not make something pure. Homogeneous means a material has a consistent texture throughout, whereas pure means there is only one type of molecule or atom in the case of pure elements. For example, water is a pure substance, but mix in some table salt and stir it up and it becomes a mixture because the salt does not actually form bonds with the water molecules. It is homogeneous, though, because the salt dissolves evenly throughout the water.

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