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Refers to the separation of charge between two covalently bonded atoms.

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Half-Cell

Compartment in which the oxidation or reduction half-reaction occurs in a voltaic cell.

Reaction Ratio

The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.

 

Band Theory of Metals

Theory that accounts for the bonding and properties of metallic solids.

Condensation

Liquefaction of vapor.

Born-Haber Cycle

A series of reactions (and accompanying enthalpy changes) which, when summed, represents the hypothetical one-step reaction by which elements in their standard states are converted into crystals of ionic compounds (and the accompanying enthalpy changes.)

Dissociation Constant

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

Lewis Base

Any species that can make available a share in an electron pair.

Hydrogenation

The reaction in which hydrogen adds across a double or triple bond.

Colligative Properties

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

Critical Point

The combination of critical temperature and critical pressure of a substance.