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

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Halogens

Group VIIA elements: F, Cl, Br, I

Nonbonding Orbital

A molecular orbital derived only from an atomic orbital of one atom, lends neither stability nor instability to a molecule or ion when populated with electrons.

Metathesis Reactions

Reactions in which two compounds react to form two new compounds, with no changes in oxidation number. Reactions in which the ions of two compounds exchange partners.

 

Coordination Compound or Complex

A compound containing coordinate covalent bonds.

Gangue

Sand, rock, and other impurities surrounding the mineral of interest in an ore.

Insoluble Compound

A very slightly soluble compound.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Amine

Derivatives of ammonia in which one or more hydrogen atoms have been replaced by organic groups.

Frasch Process

Method by which elemental sulfur is mined or extracted. Sulfur is melted with superheated water (at 170°C under high pressure) and forced to the surface of the earth as a slurry.

 

Faraday's Law of Electrolysis

One equivalent weight of a substance is produced at each electrode during the passage of 96,487 coulombs of charge through an electrolytic cell.