- Chemical substance - Wikipedia
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties [1][2] Chemical substances may take the form of a single element or chemical compounds
- What Is a Chemical? Definition and Examples
Learn what a chemical is Get the chemical definition and examples and explore the importance of these substances in everyday life
- PubChem
PubChem is the world's largest collection of freely accessible chemical information Search chemicals by name, molecular formula, structure, and other identifiers Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more
- CHEMICAL Definition Meaning - Merriam-Webster
The meaning of CHEMICAL is of, relating to, used in, or produced by chemistry or the phenomena of chemistry How to use chemical in a sentence
- CHEMICAL | English meaning - Cambridge Dictionary
CHEMICAL definition: 1 any basic substance that is used in or produced by a reaction involving changes to atoms or… Learn more
- What Is A Chemical ? | NRC. gov
What is a Chemical ? Printable Version The Nuclear Regulatory Commission's Science 101: What is a Chemical? A chemical is any substance that has a defined composition In other words, a chemical is always made up of the same "stuff " Some chemicals occur in nature, such as water Other chemicals are manufactured, such as chlorine (used for bleaching fabrics or in swimming pools) Chemicals are
- Chemistry | Definition, Topics, Types, History, Facts . . .
Chemistry is the science of the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes Chemistry is concerned with the properties of atoms and the laws governing their combinations
- CHEMICAL Definition Meaning | Dictionary. com
Chemical definition: a substance produced by or used in a chemical process See examples of CHEMICAL used in a sentence
|