Keyword Analysis & Research: chemicals
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Chemical substance - Wikipedia
https://en.wikipedia.org/wiki/Chemical_substance
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical … See more
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What Is a Chemical? Definition and Examples - Science …
https://sciencenotes.org/what-is-a-chemical-definition-and-examples/
WEBOct 15, 2023 · Learn what a chemical is and how to identify it based on its composition, properties, and reactions. Explore the role of chemicals in medicine, food, environment, …
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PubChem
https://pubchem.ncbi.nlm.nih.gov/
WEBPubChem 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 …
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Chemical compound | Definition, Examples, & Types
https://www.britannica.com/science/chemical-compound
WEBMar 11, 2024 · Learn about chemical compounds, substances composed of identical molecules of two or more elements. Find out how they are classified, formed, and …
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What is a Chemical ? | NRC.gov
https://www.nrc.gov/reading-rm/basic-ref/students/science-101/what-is-a-chemical.html
WEBA chemical is any substance that has a defined composition, such as iron and oxygen in iron oxide. Learn how to distinguish between chemical and physical changes, and see how a chemical reaction can be explained …
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Chemistry - Wikipedia
https://en.wikipedia.org/wiki/Chemistry
WEBChemistry. Part of a series on. Chemistry. Science of matter. Index. Outline. Glossary. History ( timeline) Key components. Branches. Research. Chemistry portal. Category. v. …
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What Is and Is Not a Chemical? - ThoughtCo
https://www.thoughtco.com/what-is-a-chemical-604316
WEBDec 7, 2019 · A chemical is any substance consisting of matter, such as a liquid, solid, or gas. A chemical can be natural or artificial, and it can be made up of elements or molecules. Learn the examples of naturally …
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Chemical Definition - Chemistry Glossary - ThoughtCo
https://www.thoughtco.com/definition-of-chemical-604406
WEBMay 8, 2019 · Learn the meaning of the word "chemical" as an adjective and a noun in chemistry and common usage. Find examples of chemicals and non-chemicals, and …
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