Chapter Overview
This chapter explores the concept of purity in matter. It differentiates between pure substances and mixtures, discusses types of mixtures (homogeneous and heterogeneous), and explains methods for separating components of mixtures. Students will also learn about solutions, suspensions, and colloids along with their properties and applications.
Important Keywords
- Pure Substance: A substance made of only one kind of particle.
- Mixture: A combination of two or more substances.
- Homogeneous Mixture: A mixture with uniform composition (e.g., saltwater).
- Heterogeneous Mixture: A mixture with non-uniform composition (e.g., sand and water).
- Solution: A homogeneous mixture of solute and solvent.
- Suspension: A heterogeneous mixture where particles settle over time.
- Colloid: A mixture where dispersed particles do not settle.
- Filtration: A method to separate insoluble solids from liquids.
- Distillation: A method to separate liquids based on boiling points.
- Centrifugation: A method to separate components using rapid spinning.