Properties of mixture
1. Homogeneity: A mixture can be homogeneous, meaning the components are evenly distributed throughout and cannot be easily distinguished. For example, a solution of salt and water is a homogeneous mixture.
2. Heterogeneity: A mixture can also be heterogeneous, meaning the components are not evenly distributed and can be easily distinguished. For example, a mixture of oil and vinegar is a heterogeneous mixture.
3. Variable composition: The composition of a mixture can vary, meaning the ratio of components can be changed without changing the nature of the mixture. For example, the ratio of sugar to water can be varied in a sugar solution.
4. No fixed melting or boiling point: Mixtures do not have fixed melting or boiling points. Instead, they have a temperature range over which they melt or boil, depending on the components present. For example, an alloy such as bronze has a range of temperatures at which it melts, depending on the ratios of copper and tin.
5. Physically separable: The components of a mixture can be physically separated using various techniques based on their properties. For example, a mixture of sand and water can be separated by filtration, as sand is insoluble in water.
6. No chemical bonding: In a mixture, the components retain their individual chemical properties and do not form new substances through chemical bonding. For example, a mixture of iron and sulfur can be separated by using a magnet, as iron is magnetic but sulfur is not.
7. Properties of components may be retained: In a mixture, the properties of the components may be retained to some extent. For example, a mixture of red and blue paint will still exhibit the colors of the components.
8. May show physical changes: A mixture can undergo physical changes such as melting or evaporation without any chemical reactions taking place. For example, a mixture of ice and water can be heated to melt the ice without any chemical changes occurring.
9. May show combined physical properties: The physical properties of a mixture can be a combination of the physical properties of its components. For example, a mixture of iron filings and sand will exhibit magnetic properties due to the presence of iron.
10. May show combined chemical properties: While a mixture does not undergo chemical reactions, the individual components may still exhibit their own chemical properties. For example, a mixture of hydrogen and oxygen gases may still be flammable, as the gases themselves are flammable.