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 »

Air is a mixture, which is primarily made up of nitrogen and oxygen. It is more nitrogen than oxygen, with about 78 percent of the makeup being the nitrogen and 21 percent oxygen. 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 »

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 »

A precise but simple explanation of the difference between a mixture and a solution is that a mixture is a substance made of other substances that are mixed but not joined together, while a solution is a substance made o... More »

A solvent is a substance that dissolves a solute in the formation of a solution, and any solvent other than water is considered a non-aqueous solvent. Some common examples include ether, alcohol, benzene, disulphide, car... More »

To separate salt from sand, add water to the mixture, decant the sand particles and evaporate the water. Salt and sand form a heterogeneous mixture, which can be separated by physical means. More »