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A decrease in the radii of the elements following the lanthanides compared to what would be expected if there were no f-transition metals.

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Formula

Combination of symbols that indicates the chemical composition of a substance.

 

Heterocyclic Amine

Amine in which the nitrogen is part of a ring.

xylan

The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.

Peroxide

A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22

Percent by Mass

100% times the actual yield divided by theoretical yield.

Condensed Phases

The liquid and solid phases, phases in which particles interact strongly.

xylic acid

Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

Evaporation Rate

The rate at which a particular substance will vapourize (evaporate) when compared to the rate of a known substance such as ethyl ether. This term is especially useful for health and fire-hazard considerations.

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.

Molecular Geometry

The arrangement of atoms (not lone pairs of electrons) around a central atom of a molecule or polyatomic ion.