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A gas formed by boiling or evaporating a liquid.

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Pairing

A favourable interaction of two electrons with opposite m , values in the same orbital.

Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Polyprotic Acid

An Acid that can form two or more hydronium ions per molecule, often a least one step of ionization is weak.

Rate-determining Step

The slowest step in a mechanism, the step that determines the overall rate of reaction.

Weak Electrolyte

A substance that conducts electricity poorly in a dilute aqueous solution.

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Percent by Mass

100% times the actual yield divided by theoretical yield.

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.

Common Ion Effect

Suppression of ionization of a weak electrolyte by the presence in the same solution of a strong electrolyte containing one of the same ions as the weak electrolyte.