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Classification of matter

 Hello everyone! 

Today we will dicuss classification of matter. 

A piece of matter in pure form is called a Substance. While impure matter is called Mixture. 

Further Substance is divided into element and compound. Similarly, Mixtures are of two types homogenous mixture and heterogeneous mixture. 

Substance:

Element:

According to modern definition of element "it is a substance made up of same types of atoms, having same atomic number and cannot be decomposed into simple substance by ordinary chemical means. It means that each element is made up of unique type of atoms that have very specific properties. 

Elements occur in free state as well as in combined state. They may be solid, liquid or gas. 

Compound:

It is a substance made up of two or more elements chemically combined together in fix ratio by mass. As a result of this elements lose their own properties and produce new substances that have different properties

Mixture:

Homogenous mixture:

Mixture that have uniform composition throughout are called homogenous mixture. For example: air, gasoline, ice cream etc. 


Heterogeneous mixture:

The mixture in which the composition is not uniform throughout are called heterogeneous mixture. For example: soil, rock, wood etc. 

This was the short introduction of substance and mixture. See you soon. Thank you. 

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