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An insoluble solid formed by mixing in solution the constituent ions of a slightly soluble solution.

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Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

xylidine

Any of six isomeric compounds that have the formula C8H11N, are derivatives of xylene, and resemble aniline: used in dye manufacture.

Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Distilland

The material in a distillation apparatus that is to be distilled.

Theoretical Yield

Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.

Coordinate Covalent Bond

A covalent bond in which both shared electrons are donated by the same atom, a bond between a Lewis base and a Lewis acid.

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.

ytterbium

A rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb, at. wt.: 173.04, at. no.: 70, sp. gr.: 6.96. Cf."rare-earth element."

 

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.