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precipitation, in chemistry
(Encyclopedia)precipitation, in chemistry, a process in which a solid is separated from a suspension, sol, or solution. In a suspension such as sand in water the solid spontaneously precipitates (settles out) on st...sublimation, in chemistry
(Encyclopedia)sublimation sŭblĭmāˈshən [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas ch...suspension, in chemistry
(Encyclopedia)suspension, in chemistry, mixture of two substances, one of which is finely divided and dispersed in the other. Common suspensions include sand in water, fine soot or dust in air, and droplets of oil ...sol, in chemistry
(Encyclopedia)sol, in chemistry: see colloid.radical, in chemistry
(Encyclopedia)radical, in chemistry, group of atoms that are joined together in some particular spatial structure and that take part in most chemical reactions as a single unit. Important inorganic radicals include...resonance, in chemistry
(Encyclopedia)resonance, in chemistry: see chemical bond. ...chemistry
(Encyclopedia)chemistry, branch of science concerned with the properties, composition, and structure of substances and the changes they undergo when they combine or react under specified conditions. Organic chemi...Pembroke, Aymer de Valence, earl of
(Encyclopedia)Pembroke, Aymer de Valence, earl of pĕmˈbro͝ok [key], d. 1324, English nobleman; nephew of Aymer of Valence, bishop of Winchester. He succeeded his father, William, half-brother of Henry III, as ea...Aymer of Valence, earl of Pembroke
(Encyclopedia)Aymer of Valence, earl of Pembroke: see Pembroke, Aymer de Valence, earl of. ...rust, in chemistry and metallurgy
(Encyclopedia)rust, in chemistry and metallurgy: see corrosion. ...Browse by Subject
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