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A term used to describe molecules and polyatomic ions that have one atom in the center and six atoms at the corners of a octahedron.

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Boiling Point Elevation

The increase in the boiling point of a solvent caused by the dissolution of a nonvolatile solute.

Actual Yield

Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

Nuclides

Refers to different atomic forms of all elements in contrast to ?isotopes?, which refer only to different atomic forms of a single element.

Contact Process

Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

Manometer

A two-armed barometer.

Equivalence Point

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

Strong Field Ligand

Ligand that exerts a strong crystal or ligand electrical field and generally forms low spin complexes with metal ions when possible.

Wild patina, is it so bad?

Usually this kind of patina appears on monuments. The most striking example is the Statue of Liberty in New York.

Heterocyclic Amine

Amine in which the nitrogen is part of a ring.

Periodic Law

The properties of the elements are periodic functions of their atomic numbers.