Introduction to Solutions: Solutes & Solvents

A solution is a homogeneous mixture of two or more substances.
- Typically composed of:
  1. Solvent (liquid)
  2. Solute (solid)
Examples:
- Salt solution
- Coffee
- Sodium hydroxide solution
Aqueous solutions (aq):
- All of the above examples are aqueous solutions because they are all solids dissolved in water.
Solutions are not limited to solvents and solutes.
- Gas solutions also exist.
  - Different gases may be mixed together.
  - A gas may be dissolved in a liquid.