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A thermodynamic state or property that measures the degree of disorder or randomness of a system.

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Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Equivalent Weight

An oxidizing or reducing agent, who's mass gains (oxidizing agents) or loses (reducing agents) 6.022 x 1023 electrons in a redox reaction.
The mass of an acid or base that furnishes or reacts with 6.022 x 1023 H3O+ or OH- ions.

Canal Ray

Stream of positively charged particles (cations) that moves toward the negative electrode in cathode ray tubes, observed to pass through canals in the negative electrode.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Alkyl Group

A group of atoms derived from an alkane by the removal of one hydrogen atom.

Line Spectrum

An atomic emission or absorption spectrum.

Electrolytic Conduction

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

Photochemical Oxidants

Photochemically produced oxidizing agents capable of causing damage to plants and animals.

London Forces

Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.

Chain Termination Step

The combination of two radicals, which removes the reactive species that propagate the change reaction.