Question

what is Pure substance ?

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Answer 1

Explanation:

Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure.

Pure substances are further classified as elements and compounds.

An element is a substance that consists of only one type or kind of atom. An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means. Elements are mostly metals, non-metals or metalloids.

Compounds, on the other hand, are also pure substances when two or more elements are combined chemically in a fixed ratio. However, these substances can be broken down into separate elements by chemical methods.

Answer 2

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A substance which made of a single elements is called pure substance