CHEM1001 Lecture 7: Chem 7
Document Summary
A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities of the individual substances are retained. Mixtures take the form of alloys, solutions, suspensions, and colloids. Sulfur occurs naturally as elemental sulfur, sulfide, and sulfate minerals and in hydrogen sulfide. This mineral deposit is composed of a mixture of substances. A heterogeneous mixture is a mixture of two or more chemical substances, where the different components can be visually distinguished and easily separated by physical means. Mixtures of sand and water mixtures of sand and iron filings a conglomerate rock water and oil a salad trail mix mixtures of gold powder and silver powder homogenous mixtures. A homogeneous mixture is a mixture of two or more chemical substances, where the different components cannot be visually distinguished.
