Question

what are the properties of pure substance

Answer 1

Answer:

Pure substances are made up of only one kind of particle and have a fixed constant structure.

Explanation:

• Pure substances are homogeneous in nature and contain only one type of atom or molecule.
• They have constant and uniform chemical composition throughout.
• They have fixed melting and boiling points.
• A mixture of two or more phases of a pure substance is always a pure substance as long as the chemical  composition of all phases is the same
• They always react in a chemical reaction to form predictable products.
• Pure substances are classified into elements and compounds.

Examples: Gold, Copper, Oxygen

Answer 2

Answer:

A pure substance is a form of matter that has a constant composition (meaning it's the same everywhere) and properties that are constant throughout the sample (meaning there is only one set of properties such as melting point, color, boiling point, etc. throughout the matter).