Classification Of Pure SubstancesChemical substances are made of atoms and molecules. An atom is the smallest particle of a substance. Atoms may or may not exist independently. Molecules are formed when two or more atoms join together. Molecules can exi…

What are the Characteristics of CompoundsCompounds : A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass. A compound is formed as a result of chemical reaction, between the constituent elements. T…

What are the types of Pure substances and MixturesAll the matter around us is not pure. The matter around us is of two types. In the previous chapter, we have learnt about the three states of matter. Before, understanding the chemical nature of matter, …