Question

define and illustrate pure substances

Answer 1

pure subtance which contains same type of matter eg water is pure because it contains only water molecule

Answer 2

Answer:

Pure substances are either elements or compounds. They contain the same kind of atoms and molecules and have a definite set of physical and chemical properties.
Examples : Gold is an element which contains the same kind of atoms. Sugar is compound which contains the same kind of molecules and has the same properties throughout.

Explanation:

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