Why do properties of a mixture vary

Here are some of them: the mixture can contain more or less iron, but iron sulfide always contains equal amounts of iron and sulfur the iron and sulfur atoms are not joined together in the mixture, but they are joined together in iron sulfide the iron and sulfur still behave like iron and sulfur in the mixture, but iron sulfide has different properties from both iron and sulfur you can separate the iron from the mixture using a magnet, but this does not work for iron sulfide.

Variable composition — you can vary the amount of each substance in a mixture. Definite composition — you cannot vary the amount of each element in a compound. The different substances are not chemically joined together. The different elements are chemically joined together. Each substance in the mixture keeps its own properties. The compound has properties which are different from the elements it contains.

Each substance is easily separated from the mixture. Elements are the simplest substances made up of only one type of atom. Chem1 Virtual Textbook. Learning Objectives Explain the difference between a pure substance and a mixture. Explain the difference between an element and a compound. Explain the difference between a homogeneous mixture and a heterogeneous mixture. Phase A phase is any part of a sample that has a uniform composition and properties.

If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture. Solution: A Tea is a solution of compounds in water, so it is not chemically pure.

It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture. A Orange juice contains particles of solid pulp as well as liquid; it is not chemically pure. B Because its composition is not uniform throughout, orange juice is a heterogeneous mixture.

A A compact disc is a solid material that contains more than one element, with regions of different compositions visible along its edge.

Hence a compact disc is not chemically pure. B The regions of different composition indicate that a compact disc is a heterogeneous mixture. A Aluminum oxide is a single, chemically pure compound. A Selenium is one of the known elements. Saltwater is a homogeneous mixture, or a solution. Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form. Our experts will gladly share their knowledge and help you with programming projects.

A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances on which the identities are retained and are mixed in the form of solutions, suspensions, and colloids. The properties of a mixture can vary, because the composition of a mixture is not fixed.

If amount one of substance in mixture is changed, the properties such system is also changed. Need a fast expert's response? Place free inquiry. Calculate the price. Learn more about our help with Assignments: Chemistry. Comments No comments.