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A functional group is a group of atoms in a molecule with distinctive chemical properties, regardless of the other atoms in the molecule. The atoms in a functional group are linked to each other and to the rest of the molecule by covalent bonds. For repeating units of polymers, functional groups attach to their nonpolar core of carbon atoms and ...
Carbonyl group. A ketone compound containing a carbonyl group (C=O) For organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom. It is common to several classes of organic compounds (such as aldehydes, ketones and carboxylic acids ...
Functional group (ecology) A functional group is merely a set of species, or collection of organisms, that share alike characteristics within a community. Ideally, the lifeforms would perform equivalent tasks based on domain forces, rather than a common ancestor or evolutionary relationship. This could potentially lead to analogous structures ...
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Functional ecology is a branch of ecology that focuses on the roles, or functions, that species play in the community or ecosystem in which they occur. In this approach, physiological, anatomical, and life history characteristics of the species are emphasized. The term "function" is used to emphasize certain physiological processes rather than ...
In chemistry, the term amide ( / ˈæmaɪd / or / ˈæmɪd / or / ˈeɪmaɪd /) [1] [2] [3] is a compound with the functional group R n E (=O) x NR 2, where x is not zero, E is some element, and each R represents an organic group or hydrogen. [4] It is a derivative of an oxoacid R n E (=O) x OH with an hydroxy group –OH replaced by an amine ...
An infrared spectroscopy correlation table (or table of infrared absorption frequencies) is a list of absorption peaks and frequencies, typically reported in wavenumber, for common types of molecular bonds and functional groups. [1] [2] In physical and analytical chemistry, infrared spectroscopy (IR spectroscopy) is a technique used to identify ...
Functional Skills Qualification. The Functional Skills Qualification is a frequently required component of post-16 education in England. The aim of Functional Skills is to encourage learners to develop and demonstrate their skills as well as learn how to select and apply skills in ways that are appropriate to their particular context in English ...