Question

1. What are the properties of a pure substance?​

Answer 1

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Pure substances are mostly homogeneous in nature containing only one type of atoms or molecules. These substances mainly have a constant or uniform composition throughout. The substances have fixed boiling and melting points. A pure substance usually participates in a chemical reaction to form predictable products.

Answer 2

• Pure substances are mostly homogeneous in nature containing only one type of atoms or molecules.
• These substances mainly have a constant or uniform composition throughout.
• The substances have fixed boiling and melting points.