Classification of matter in chemistry forms the foundation of understanding material composition and behavior.
• The primary division of matter consists of substances (including elements and compounds) and mixtures, each with distinct characteristics and properties.
• Elements serve as the fundamental building blocks of matter, with examples including common elements like Carbon, Hydrogen, and Oxygen.
• Differences between substances and mixtures are clearly defined - substances have fixed compositions while mixtures can vary in their component ratios.
• Examples of chemical changes in everyday life include cooking processes like frying eggs, where the transformation is irreversible.