Web1 the branch of physical science concerned with the composition, properties, and reactions of substances See also → inorganic chemistry → organic chemistry → physical chemistry 2 the composition, properties, and reactions of a particular substance 3 the nature and effects of any complex phenomenon the chemistry of humour Webalkaline testing chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.

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Webchemistry meaning: 1. the scientific study of the basic characteristics of substances and the ways in which they react…. Learn more. autopaikan vuokrasopimuspohja

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