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The point at which chemically equivalent amounts of reactants have reacted.

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Reversible Reaction

Reactions that do not go to completion and occur in both the forward and reverse direction.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

Half-Cell

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

Periodic Table of Elements

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Polarimeter

A device used to measure optical activity.

Cation

A positive ion, an atom or group of atoms that has lost one or more electrons.

Lead Storage Battery

Secondary voltaic cell used in most automobiles.

Amphiprotism

Ability of a substance to exhibit amphiprotism by accepting donated protons.

Linear Accelerator

A device used for accelerating charged particles along a straight line path.

Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.