Gasoline is a homogeneous mixture made from processing or refining crude oils. A homogeneous mixture consists of combinations of different substances. However, a homogeneous mixture also has uniform composition and prope... More »

The two types of pure substances are elements and compounds. A pure substance is that which consists of only one component with distinct chemical and physical properties. Any substance with more than one component is cal... More »

Sugar is a pure substance because its composition is homogeneous throughout. Pure substances can be either elements or compounds. Sugar or sucrose is a compound with the chemical formula C12H22O11. More »

A pure substance contains only one kind of molecule, and a mixture is a combination of two or more pure substances. Distilled water, aluminum foil and table sugar are each made from only one type of particle. However, sa... More »

Metal alloys, which are a mixture of metal and at least one other substance, are used because they are more suited for a particular task than a pure metal is. Metal alloys are typically either harder, stronger, lighter o... More »

You can compare and contrast mixtures and pure substances by determining if the substance can be separated into homogeneous materials. Determine if the substance can be changed into a different substance as well. More »

Salt water is a mixture, but more specifically, it is a solution. A solution is a mixture where one substance is homogeneously or evenly distributed in the other. More »