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  2. Chemical compound - Wikipedia

    en.wikipedia.org/wiki/Chemical_compound

    A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds.

  3. Chemical substance - Wikipedia

    en.wikipedia.org/wiki/Chemical_substance

    A chemical compound is a chemical substance that is composed of a particular set of atoms or ions. Two or more elements combined into one substance through a chemical reaction form a chemical compound. All compounds are substances, but not all substances are compounds.

  4. List of compounds - Wikipedia

    en.wikipedia.org/wiki/List_of_compounds

    Chemical substance – Form of matter; List of alchemical substances; List of chemical elements; List of minerals – List of minerals with Wikipedia articles; List of named alloys; List of straight-chain alkanes; Polyatomic ion – Ion containing two or more atoms; Exotic molecule – a compound containing one or more exotic atoms

  5. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    A compound is a pure chemical substance composed of more than one element. The properties of a compound bear little similarity to those of its elements. [22] The standard nomenclature of compounds is set by the International Union of Pure and Applied Chemistry (IUPAC). Organic compounds are named according to the organic nomenclature system. [23]

  6. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  7. Chemical composition - Wikipedia

    en.wikipedia.org/wiki/Chemical_composition

    The chemical composition of a mixture can be defined as the distribution of the individual substances that constitute the mixture, called "components". In other words, it is equivalent to quantifying the concentration of each component. Because there are different ways to define the concentration of a component, there are also different ways to ...

  8. Is any amount of alcohol safe? Here's what 8 doctors actually ...

    www.aol.com/news/amount-alcohol-safe-heres-8...

    Family history of substance use issues. ... she tells them they can get those healthy compounds from fruits and vegetables instead. “Rather than getting them from fermented grapes, (you can) get ...

  9. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is an inorganic compound with the chemical formula H 2 O.It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance.It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent [20]).