Question

Extra questions of Lesson no. 2 Is matter around us pure? ​

Answer 1

Explanation:

A substance is a pure single form of matter. As we look around, we can see that most of the matter around us exist as mixtures of two or more pure components, for example, sea water, minerals, soil etc. are all mixture and thus substance cannot be separated into other kinds of matter by any physical process.

Answer 2

Explanation:

A pure substance consists of a single type of particles. In other words, a substance is a pure single form of matter. As we look around, we can see that most of the matter around us exist as mixtures of two or more pure components, for example, sea water, minerals, soil etc.