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

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Kinetic Energy

Energy that matter processes by virtue of its motion.

Solvation

The process by which solvent molecules surround and interact with solute ions or molecules.

Electromotive Series

The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.

Osmosis

The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

Third Law of Thermodynamics

The entropy of a hypothetical pure, perfect, crystalline sustance at absolute zero temperature is zero.

Hydration Energy

The energy change accompanying the hydration of a mole of gase and ions.

Aryl Group

Group of atoms remaining after a hydrogen atom is removed from the aromatic system.

Ideal Solution

A solution that obeys Raoult's Law exactly.

Spectator Ions

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