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  2. Formate - Wikipedia

    en.wikipedia.org/wiki/Formate

    Formate (IUPAC name: methanoate) is the conjugate base of formic acid. Formate is an anion ( HCO − 2 ) or its derivatives such as ester of formic acid . The salts and esters are generally colorless.

  3. Resonance (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Resonance_(chemistry)

    Contributing structures of the carbonate ion. In chemistry, resonance, also called mesomerism, is a way of describing bonding in certain molecules or polyatomic ions by the combination of several contributing structures (or forms, [1] also variously known as resonance structures or canonical structures) into a resonance hybrid (or hybrid structure) in valence bond theory.

  4. Formant - Wikipedia

    en.wikipedia.org/wiki/Formant

    Indeed, when the length of the vocal tract changes, all the acoustic resonators formed by mouth cavities are scaled, and so are their resonance frequencies. Therefore, it was unclear how vowels could depend on frequencies when talkers with different vocal tract lengths, for instance bass and soprano singers, can produce sounds that are ...

  5. Resonance structure - Wikipedia

    en.wikipedia.org/?title=Resonance_structure&...

    Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code; Print/export Download as PDF; ... title=Resonance ...

  6. Mesomeric effect - Wikipedia

    en.wikipedia.org/wiki/Mesomeric_effect

    In chemistry, the mesomeric effect (or resonance effect) is a property of substituents or functional groups in a chemical compound.It is defined as the polarity produced in the molecule by the interaction of two pi bonds or between a pi bond and lone pair of electrons present on an adjacent atom. [1]

  7. Simplified Molecular Input Line Entry System - Wikipedia

    en.wikipedia.org/wiki/Simplified_Molecular_Input...

    The Simplified Molecular Input Line Entry System (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings. SMILES strings can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the molecules.