Key Concepts: Heterogeneous & Homogeneous Mixtures

Core Definitions

• Mixture: A combination of two or more substances that are NOT chemically bonded.
• Homogeneous Mixture: A mixture with a uniform composition throughout; also called a solution (e.g., saltwater).
• Heterogeneous Mixture: A mixture with a non-uniform composition; individual parts can be seen (e.g., salad, trail mix).
• Solution: A homogeneous mixture where the solute is evenly distributed in the solvent.
• Colloid: A mixture where tiny particles are dispersed but do not settle out (e.g., milk, fog).
• Suspension: A mixture where larger particles are dispersed and eventually settle out (e.g., muddy water).