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Conduction of electrical current through a metal or along a metallic surface.

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Half-Reaction

Either the oxidation part or the reduction part of a redox reaction.

Enzyme

A protein that acts as a catalyst in biological systems.

Reverse Osmosis

Forcing solvent molecules to flow through a semipermable membrane from a concentated solution into a dilute solution by the application of greater hydrostatic pressure on concentrated side than the osmotic pressure opposing it.

Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Nonelectrolyte

A substance whose aqueous solutions do not conduct electricity.

Stereoisomers

Isomers that differ only in the way that atoms are oriented in space, consist of geometrical and optical isomers.

 

Formula

Combination of symbols that indicates the chemical composition of a substance.

 

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

Ideal Gas Law

The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.

Spectator Ions

Ions in a solution that do not participate in a chemical reaction.