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Elements, compounds and mixtures. Heterogenous and homogenous mixtures, colloids and suspensions.
- Introduction and What is a Mixture?
- What is a Solution?
- Concentration of a Solution
- What is a Suspension?
- What is a Colloidal Solution?
- Separating the Components of Mixture
- Physical and Chemical Changes
- What are the Types of Pure Substances?
Particle nature, basic units: Atoms and molecules, Law of constant proportions, Atomic and molecular masses. Mole concept : Relationship of mole to mass of the particles and numbers.
Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.