Question

Answer the following questions
1. What is a mixture?
2. What is a pure substance ​

Answer 1

Answer:

A pure substance is a single kind of matter that cannot be separated into other kinds of matter by any physical means. A pure substance always has a definite and constant composition. A mixture is a physical combination of two or more pure substances in which each substance retains its own chemical identity.

Explanation:

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Answer 2

Answer:

1.Mixture:A mixture is a metarial made up of two or more different substances which are physical combined.

2.Pure substance: A Pure element or compound contains only one substances with no other substances mixed in impure metarial may be mixture of element.