Which statement is true regarding mixtures?

Mixtures are formed by combining two or more substances without undergoing any chemical change, which means that each component retains its individual properties. This characteristic is highlighted in the statement that mixtures retain the properties of their components. For example, if you mix salt and sand, you can still identify the individual grains of salt and sand, and the mixture will behave according to the properties of both substances.

The nature of mixtures allows for physical methods of separation, meaning that components can be separated based on their physical properties, such as size, solubility, or density. This further solidifies why the chosen statement accurately reflects the essence of what a mixture is, as opposed to the other options, which contain inaccuracies about the nature of mixtures.