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The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

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Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Halogens

Group VIIA elements: F, Cl, Br, I

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Nucleons

Particles comprising the nucleus, protons and neutrons.

Metathesis Reactions

Reactions in which two compounds react to form two new compounds, with no changes in oxidation number. Reactions in which the ions of two compounds exchange partners.

 

Conjugated Double Bonds

Double bonds that are separated from each other by one single bond -C=C-C=C-.

Percentage Ionization

The percentage of the weak electrolyte that ionizes in a solution of given concentration.

Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.

ytterbia

Ytterbia is a colorless compound, Yb2O3, used in certain alloys and ceramics. Also known as ytterbium oxide.

Linear Accelerator

A device used for accelerating charged particles along a straight line path.