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The pressure required to liquefy a gas (vapor) at its critical temperature.

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Net Ionic Equation

Equation that results from canceling spectator ions and eliminating brackets from a total ionic equation.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

K Capture

Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.

Common Ion Effect

Suppression of ionization of a weak electrolyte by the presence in the same solution of a strong electrolyte containing one of the same ions as the weak electrolyte.

Oxidizing Agent

The substance that oxidizes another substance and is reduced.

Dispersing Medium

The solvent-like phase in a colloid.

Ionic Bonding

Chemical bonding resulting from the transfer of one or more electrons from one atom or a group of atoms to another.

Addition Reaction

A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).

Amide

Compound containing the O-C-N group.Compound that can be considered a derivative of ammonia in which one or more hydrogens are replaced by a alkyl or aryl groups.