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The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.

 

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Particulate Matter

Fine divided solid particles suspended in polluted air.

Breeder Reactor

A nuclear reactor that produces more fissionable nuclear fuel than it consumes.

Method of Initial Rates

Method of determining the rate-law expression by carrying out a reaction with different initial concentrations and analyzing the resultant changes in initial rates.

Voltaic Cells

Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

Dispersed Phase

The solute-like species in a colloid.

xenon trioxide

A colorless, nonvolatile solid, XeO3, explosive when dry: in solution it is called xenic acid.

Eluant or eluent

The solvent used in the process of elution, as in liquid chromatography.

 

Dynamic Equilibrium

An equilibrium in which processes occur continuously, with no net change. When two (or more) processes occur at the same rate so that no net change occurs.

xylose

A colorless, crystalline pentose sugar, C5H10O5, derived from xylan, straw, corncobs, etc., by treating with heated dilute sulfuric acid, and dehydrating to furfural if stronger acid is used.

Semiconductor

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.