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A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.

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Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

xenon trioxide

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

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Peroxide

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

Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

Heat of Fusion

The amount of heat required to melt one gram of solid at its melting point with no change in temperature. Usually expressed in J/g. The molar heat of fusion is the amount of heat required to melt one mole of a solid at its melting point with no change in temperature and is usually expressed in kJ/mol.

DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Polyprotic Acid

An Acid that can form two or more hydronium ions per molecule, often a least one step of ionization is weak.

Bomb Calorimeter

A device used to measure the heat transfer between system and surroundings at constant volume.