Question

Which properties are characteristics of pure substances and which are charactertics of mixture

Answer 1

Explanation:

Pure substances are typically elements and compound with the following characteristics:

1. Pure substances are distinct substances.
2. They are homogeneous in all their parts i.e they are the same all through.
3. They have a definite composition
4. They cannot easily be separated or broken down into simpler substances by physical means.
5. Separation by physical means is not easy
6. They have a unique sets of physical properties

Impure substances are mixtures. They have the following features:

1. Their composition is indefinite i.e they consist of two or more elements and or compounds in any proportion by mass.
2. Constituents retain their identities i.e physical properties are retained.
3. The constituents reacts differently to changed conditions.
4. They can easily be separated into their constituents by physical methods.

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Answer 2

Answer:

PURE SUBSTANCES: Cannot be separated physically. Exist in the same state of matter. Have consistent properties.

MIXTURES: Can be separated physically. Cannot be a single element. May be multiple states of matter.

Explanation:

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