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

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Ternary Compound

A compound consisting of three elements, may be ionic or covalent.

Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Chemical Bonds

The attractive forces that hold atoms together in elements or compounds.

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Net Ionic Equation

Equation that results from canceling spectator ions and eliminating brackets from a total ionic equation.

Atomic Radius

Radius of an atom.

Indicators

For acid-base titrations, organic compounds that exhibit different colors in solutions of different acidities, used to determine the point at which reaction between two solutes is complete.

Metallic Bonding

Bonding within metals due to the electrical attraction of positively charges metal ions for mobile electrons that belong to the crystal as a whole.

Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

Fuel Cells

Voltaic cells in which the reactants (usually gases) are supplied continuously.
A voltaic cell that converts the chemical energy of a fuel and an oxidizing agent directly into electriacl energy on a continuous basis.