Is Granite A Pure Chemical Substance

A pure chemical substance is any matter that has a fixed chemical composition and characteristic properties.

Is granite a pure chemical substance.

A compound may be composed of different elements. Oxygen for example is a pure chemical substance that is a colorless odorless gas at 25 c. Mixtures contain more than one chemical substance and they do not have a fixed composition. Common definition of a pure substance.

But there are exceptions to this definition. According to this definition a chemical substance can either be a pure chemical element or a pure chemical compound. A pure substance can also be defined as a form of matter that has both definite. A pure substance is by definition composed of one compound.

In other words it is free of contaminants. Just like granite marble is a mixture. Ordinary table salt is called sodium chloride. All samples of sodium chloride are chemically identical.

Very few samples of matter consist of pure substances. All matter consists of various elements and chemical compounds but these are often intimately mixed together. A chemical substance may well be defined as any material with a definite chemical composition in an introductory general chemistry textbook. So in addition to elements compounds and alloys a pure substance might include honey even though it consists of many different types of molecules.

Pure and impure chemical substances a pure element or compound contains only one substance with no other substances mixed in. In chemistry a pure substance consists of only one type of atom molecule or compound. However unlike granite marble is typically more than 90 calcium carbonate so it might count as a pure substance. Impure materials may be mixtures of elements mixtures of compounds.

A pure substance or chemical substance is a material that has a constant composition is homogeneous and has consistent properties throughout the sample. It is considered a pure substance because it has a uniform and definite composition. A pure substance participates in a chemical reaction to form predictable products. To a non chemist a pure substance is anything composed of a single type of material.