chemistry

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Definition/MeaningWord/Phrase
(chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid absorption , soaking up
(chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million abundance
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected accelerator , catalyst
(chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated acceptor
(chemistry) the amount of free acid present in fat as measured by the milligrams of potassium hydroxide needed to neutralize it acid value
(chemistry) a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium actinide series
(chemistry) the capacity of a substance to take part in a chemical reaction activity
chemistry, medieval alchemy
medieval chemistry alchemy
pseudoscientific forerunner of chemistry in medieval times alchemy
(chemistry) variability in chemical composition without variation in crystalline form allomerism
(chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst anticatalyst
French chemist known as the father of modern chemistry; discovered oxygen and disproved the theory of phlogiston (1743-1794) Antoine Laurent Lavoisier , Antoine Lavoisier , Lavoisier
(chemistry) theory that describes aqueous solutions in terms of acids (which dissociate to give hydrogen ions) and bases (which dissociate to give hydroxyl ions); the product of an acid and a base is a salt and water Arrhenius theory of dissociation , theory of dissociation , theory of electrolytic dissociation
(chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding association
(physics and chemistry) the smallest component of an element having the chemical properties of the element atom
(chemistry) the mass (in atomic mass units) of an isotope of an element atomic mass
(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles atomic theory , atomism , atomistic theory , atomist theory
(chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon atomic weight , relative atomic mass
flatbottomed jar made of glass or plastic; used for chemistry beaker
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