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

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Particulate Matter

Fine divided solid particles suspended in polluted air.

Alloying

Mixing of metal with other substances (usually other metals) to modify its properties.

Cation

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

Coulomb

Unit of electrical charge.

pH

Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.

Standard Electrode Potential

By convention, potential, Eo, of a half-reaction as a reduction relative to the standard hydrogen electrode when all species are present at unit activity.

 

Saturated Hydrocarbons

Hydrocarbons that contain only single bonds. They are also called alkanes or paraffin hydrocarbons.

Emulsion

Colloidal suspension of a liquid in a liquid.

Acid Anhydride

Compound produced by dehydration of a carbonic acid. General formula is R--C--O--C--R. Chemical compound that reacts with water to form an acid and are usually oxides of nonmetallic elements.

Alkaline Earth Metals

Group IIA metals

Flotation

Method by which hydrophobic (water-repelling) particles of an ore are separated from hydrophilic (water-attracting) particles of a metallurgical pretreatment process.

Excited State

Any state other than the ground state of an atom or molecule.

Voltaic Cells

Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

Evaporization

Vaporization of a liquid below its boiling point.

Dextrorotatory

Refers to an optically active substance that rotates the plane of plane polarized light clockwise, also called dextro.

Enthalpy

The heat content of a specific amount of substance, defined as E= PV.

Resonance

The concept in which two or more equivalent dot formulas for the same arrangement of atoms (resonance structures) are necessary to describe the bonding in a molecule or ion.

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.

Binding Energy (nuclear binding energy)

The energy equivalent (E = mc^2) of the mass deficiency of an atom.  where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2

Cis-

The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.