Which of the following would represent a mixture?

A mixture is a combination of two or more substances that retain their individual properties and can usually be separated by physical means. Saltwater is a classic example of a mixture because it is made up of salt dissolved in water. In this case, both the salt and the water maintain their distinct properties even though they are combined.

When salt is added to water, it dissolves, forming a solution, which is a homogeneous mixture. If you were to evaporate the water, the salt would remain, demonstrating that the components can be separated and maintain their individual properties.

In contrast, substances such as water, sugar, and gold are examples of pure substances. Water (H2O) is a pure compound, sugar (sucrose) consists of specific molecules, and gold is a pure element. These substances do not consist of different components that can be physically separated like a mixture would.