Here's why:
* Homogeneous: The mixture is uniform throughout. This means the components are evenly distributed, and you can't visually distinguish them from each other.
* Tiny particles: The particles are so small that they are dissolved within the mixture and can't be separated by simple physical means like filtration.
* Invisible under a microscope: The particles are smaller than the wavelength of visible light, making them invisible even under high magnification.
Examples of solutions:
* Saltwater: Salt (solute) dissolves in water (solvent).
* Sugar water: Sugar (solute) dissolves in water (solvent).
* Air: Gases like nitrogen and oxygen are mixed together.
Key points:
* Solutions are very common in everyday life.
* The particles in a solution are in constant motion and can't be seen individually.
* The properties of a solution are different from the properties of its individual components.
