Question

Answer the following questions
1 what do you mean by separation of substances?
2 How many kinds of substances are there?
3 What are the characteristics of pure substances?
4 What are the difference between pure and impure substances?
5How many types of mixtures ?Name them ​

Answer 1

Ans -1 separation process is a method that converts a mixture or solution of chemical substances into two or more distinct product mixtures. In other words, it's a scientific process of distinguishing to two or more substance in order to obtain purity.

Ans-2 The Two Types of Pure Substances

Elements

*Cannot be broken down into smaller components *Can be found on the periodic table *Ex: Iron

Compunds

*Made up of two or more elements held together by chemical bonds and functioning as a unit *Ex: Carbon dioxide, ab.

Ans -3 Characteristics and Properties Of Pure Substances

1. Pure substances are mostly homogeneous in nature containing only one type of atoms or molecules.
2. These substances mainly have a constant or uniform composition throughout.
3. The substances have fixed boiling and melting points.

Ans-4 Impure substances have the following properties : The properties of the resulting mixture is an average of the properties of the constituents.

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Pure Substances

Made of a single element or compound.

Impure Substance

Several elements & compounds together form an impure substance.

Ans -5 There are two types of mixtures: heterogeneous and homogeneous.

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