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The separation of a liquid mixture into its components on the basis of differences in boiling points. The process in which components of a mixture are separated by boiling away the more volitile liquid.

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Combination Reaction

Reaction in which two substances (elements or compounds) combine to form one compound.

Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.

Geiger counter

A gas filled tube which discharges electriaclly when ionizing radiation passes through it.

Lewis Acid

Any species that can accept a share in an electron pair.

Gamma Ray

High energy electromagnetic radiation. A highly penetrating type of nuclear radiation similar to x-ray radiation, except that it comes from within the nucleus of an atom and has a higher energy. Energywise, very similar to cosmic ray except that cosmic rays originate from outer space.

Collision Theory

Theory of reaction rates that states that effective collisions between reactant molecules must occur in order for the reaction to occur.

Dimer

Molecule formed by combination of two smaller (identical) molecules.

Cathode

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

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Acid

A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.