Question

What is a mixture and what is pure substance ?​

Answer 1

Answer:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.

Answer 2

MIXTURE:

A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components. Some examples of mixtures are a tossed salad, salt water etc.

PURE SUBSTANCE:

A pure substance is any single type of material that are made of only one type of atom or only one type of molecule. ... An element is a pure substance that cannot be separated into simpler substances by chemical or physical means.