Link: https://en.wikipedia.org/wiki/Chemistry
Description: WebChemical substances are classified in terms of their structure, phase, as well as their chemical compositions. They can be analyzed using the tools of chemical analysis, e.g. spectroscopy and chromatography. Scientists engaged in chemical research are known as chemists. Most chemists specialize in one or more sub-disciplines.
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Link: https://en.wikipedia.org/wiki/Chemical_substance
Description: WebA 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 mixture.
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Link: https://sciencenotes.org/what-is-a-chemical-definition-and-examples/
Description: WebOct 15, 2023 · A chemical is a substance with a specific composition. It is an element, an alloy, or a compound made up of two or more elements combined in a fixed ratio. For instance, water (H 2 O) is a chemical because it consists of hydrogen and oxygen combined in a 2:1 ratio.
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Link: https://www.britannica.com/science/chemical-compound
Description: WebMar 11, 2024 · Chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.
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Link: https://www.merriam-webster.com/dictionary/chemical
Description: WebThe 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.
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Link: https://dictionary.cambridge.org/dictionary/english/chemical
Description: WebCHEMICAL definition: 1. any basic substance that is used in or produced by a reaction involving changes to atoms or…. Learn more.
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Link: https://www.britannica.com/science/chemical-element
Description: Webchemical element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the origin of the elements and their abundances throughout the universe.
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Link: https://www.britannica.com/science/chemistry
Description: Web1 day ago · Chemistry, 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.
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Link: https://pubchem.ncbi.nlm.nih.gov/periodic-table/
Description: WebInteractive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!
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Link: https://www.khanacademy.org/science/chemistry
Description: WebChemistry is the study of matter and the changes it undergoes. Here you can browse chemistry videos, articles, and exercises by topic. We keep the library up-to-date, so you may find new or improved material here over time.
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