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

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Conjugate Acid-base Pair

In Bronsted-Lowry terminology, a reactant and product that differ by a proton, H+.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Salinometer

An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."

Flammable

A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).

yield

The quantity of product formed by the interaction of two or more substances, generally expressed as a percentage of the quantity obtained to that theoretically obtainable.

Tetrahedral

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

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Electromotive Series

The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.

Phosphoric Acid

H3P04, Colorless liquid or rhombic crystals, decomposes before it will boil. Used mostly in the metal etchant. Used in cleaning operations to remove encrusted surface matter and mineral scale found on metal equipment such as boilers and steam producing equipment. Also used to brighten metals and remove rust.

Mass Deficiency

The amount of matter that would be converted into energy if an atom were formed from constituent particles.