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- Chemistry - Wikipedia
Chemical reactions usually involve the making or breaking of chemical bonds Oxidation, reduction, dissociation, acid–base neutralization and molecular rearrangement are some examples of common chemical reactions
- What is a Chemical ? | Nuclear Regulatory Commission - NRC
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)
- PubChem
Search and explore chemical information in the world's largest free chemistry database Search chemicals by name, molecular formula, structure, and other identifiers
- What Is a Chemical? Definition and Examples
A chemical is any substance with a definite composition and distinct properties All matter is made of chemicals, regardless of whether it is natural or synthetic
- Chemistry | Definition, Topics, Types, History, Facts | Britannica
Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization Today, vinyl, Teflon, liquid crystals, semiconductors, and superconductors represent the fruits of chemical technology
- 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
- 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
- CHEMICAL definition and meaning | Collins English Dictionary
Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of chemical reactions that cause ozone destruction the chemical composition of the ocean chemical weapons
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