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A gas formed by boiling or evaporating a liquid.

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Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.

Acetic Acid

CA3COOH, clear, colorless liquid, pungent odor. Boiling point 140C, flash point 54C (closed cup), autoignition temperature 38OC.

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.

Crystal Field Stabilization Energy

A measure of the net energy of stabilization gained by a metal ion's nonbonding d electrons as a result of complex formation.

Emulsion

Colloidal suspension of a liquid in a liquid.

Ionic Compounds

Compounds containing predominantly ionic bonding.

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.

 

Debye

The unit used to express dipole moments.

Atom

The smallest particle of an element.

Nitrogenases

A class of enzymes found in bacteria within root nodules in some plants, which catalyze reactions by which N2 molecules from the air are converted to ammonia.

 

Chain Reaction

A reaction that, once initiated, sustains itself and expands. This is a reaction in which reactive species, such as radicals, are produced in more than one step. These reactive species, radicals, propagate the chain reaction.

 

Coordination Isomers

Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.

Ideal Solution

A solution that obeys Raoult's Law exactly.

Alcohol

Hydrocarbon derivative containing an --OH group attached to a carbon atom not in an aromatic ring. Alcohols are a class of organic compounds containing the hydroxyl group, OH, attached to a carbon atom.

Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

Basic Salt

A salt containing an ionizable OH group.

Colloid

A heterogeneous mixture in which solute-like particles do not settle out.

yttrium metal

Any of a subgroup of rare-earth elements, of which the cerium and terbium metals comprise the other two subgroups.

Ioniztion

The breaking up of a compound into separate ions.

Aldehyde

Compound in which an alkyl or aryl group and a hydrogen atom are attached to a carbonyl group and a hydrogen atom are attached to a carbonyl group, general formula, O-R-C-H