Mixture:
* Non-uniform: Components can be visually distinguished, often with different sizes and properties.
* Variable composition: The ratio of components can vary.
* Components retain their individual properties: The components do not chemically combine.
* Can be separated by physical means: Filtration, decantation, evaporation, magnetism, etc.
Examples: Sand and water, oil and water, salt and pepper.
Solution:
* Uniform: Components are evenly distributed throughout the mixture, creating a homogeneous mixture.
* Fixed composition: The ratio of components is constant.
* Components lose their individual properties: They chemically combine to form a new substance with new properties.
* Cannot be easily separated by physical means: Requires specialized techniques like distillation or crystallization.
Examples: Saltwater, sugar dissolved in water, air.
Here's a table summarizing the key differences:
| Feature | Mixture | Solution |
|---|---|---|
| Uniformity | Non-uniform | Uniform |
| Composition | Variable | Fixed |
| Component properties | Retained | Changed |
| Separation | Easily separated | Difficult to separate |
Important Note: While solutions are always homogeneous, some mixtures can be homogeneous as well. For example, a saltwater solution is homogeneous, but so is a homogeneous mixture of salt and pepper. The key difference is the *interaction* of the components. In a solution, the components interact chemically, while in a homogeneous mixture, they do not.
