Compounds that contain only carbon and hydrogen.
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Dispersing Medium
The solvent-like phase in a colloid.
Boyle's Law
At constant temperature the volume occupied by a definite mass of a gas is inversely proportional to the applied pressure.
Coordination Number
In describing crystals, the number of nearest neighbours of an atom or ion. The number of donor atoms coordinated to a metal.
Heat of Vaporization
The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole of liquid at its boiling point with no change in temperature and usually expressed ion kJ/mol.
Chain Termination Step
The combination of two radicals, which removes the reactive species that propagate the change reaction.
Stoichiometry
Description of the quantitative relationships among elements and compounds as they undergo chemical changes.
Conjugate Acid-base Pair
In Bronsted-Lowry terminology, a reactant and product that differ by a proton, H+.
Avogadro's Law
At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.
Amphoterism
The ability to react with both acids and bases.Ability of substance to act as either an acid or a base.
xylidine
Any of six isomeric compounds that have the formula C8H11N, are derivatives of xylene, and resemble aniline: used in dye manufacture.
