These describe how a substance looks and behaves. There are two types of properties: physical and chemical. Watch this video about how physical and chemical properties affect which materials we ...

According to these definitions, a chemical compound is merely a ‘hylotropic’ substance which remains constant in composition over a range of temperatures and pressures, within which it resists ...

One set of properties of a substance is the way it reacts with another substance in a chemical reaction. In this activity, you mixed baking soda with citric acid in an indicator solution. You also ...

The different atoms and molecules of a substance give it its characteristic solubility. In earlier grades, students observed and tested objects and materials, and saw that the items could be grouped ...

of specific chemical substances in the environment, and the Safety Data Sheets (SDS) system, which provides information concerning the properties and the handling of specific chemical substances. This ...

The OSHA Laboratory Standard 29 CFR 1910.1450 mandates that an employer's Chemical Hygiene Plan Proved for the establishment of designated areas which may be used for work with "select carcinogens," ...