Question

Give difference between pure substance and mixture.

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Answer 1

$\small\mathbf\red{{Differences : }}$

• Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances.
• A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties (i.e., boiling point and melting point).
• A pure substance consists only of one element or one compound while a mixture consists of two or more different substances, not chemically joined together.

Answer 2

Answer:

• Properties Pure Substance Mixture
• Define The substances that are made of a single element or compound are called pure substances Several elements & compounds together form a mixture
• Categorization Solid, liquid, gas Heterogeneous, homogeneous

Physical properties Constant Vary

Purity Pure Impure

Separation by a physical process Not possible Possible to separate by evaporation, magnetic separation, etc.

Chemical properties Constant Vary

• Example Gold, pure water,

Properties Pure Substance Mixture

Define The substances that are made of a single element or compound are called pure substances Several elements & compounds together form a mixture

Categorization Solid, liquid, gas Heterogeneous, homogeneous

Physical properties Constant Vary

Purity Pure Impure

Separation by a physical process Not possible Possible to separate by evaporation, magnetic separation, etc.

Chemical properties Constant Vary

Example Gold, pure water,