Making skim milk is an example of using chemical properties to separate a mixture?

Making skim milk involves the physical separation of cream from whole milk, rather than using chemical properties. This process typically utilizes centrifugation or gravity to separate the fat content from the liquid. While the fat and water in milk have different physical properties, such as density, the process does not alter the chemical composition of the milk itself. Therefore, it is more accurate to describe this as a physical separation method rather than a chemical one.