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Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.

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Effective Collisons

Collision between molecules resulting in a reaction, one in which the molecules collide with proper relative orientations and sufficient energy to react.

 

Colligative Properties

Physical properties of solutions that depend upon the number but not the kind of solute particles present.

Disproportionation Reactions

Redox reactions in which the oxidizing agent and the reducing agent are the same species.

Thermonuclear Energy

The energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these processes a small amount of mass is converted to energy according to the relationship E = mc2, where E is energy, m is mass, and c is the speed of light.

Dissociation Constant

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

Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Voltaic Cells

Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

Second Law of Thermodynamics

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

Cathodic Protection

Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.

Foam

Colloidal suspension of a gas in a liquid.