Classification Of Pure Substances Chemical 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 exist independently. Chemical substances can be divided into two major groups: pure substances and mixtures. Pure substances can … [Read more...] about What Are The Two Types Of Pure Substances
Compounds
What are the Characteristics of Compound
What are the Characteristics of Compounds Compounds : 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. The properties of compound are different from the properties of the elements from which it is formed. Ex. Water (H2O) … [Read more...] about What are the Characteristics of Compound
What are the types of Pure substances and Mixtures
What are the types of Pure substances and Mixtures All 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, let us first understand the scientific meaning of the term chemical substance. The scientific meaning of the term chemical … [Read more...] about What are the types of Pure substances and Mixtures