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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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Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Binary Compound

A compound consisting of two elements, may be ionic or covalent.

Hydrometer

A device used to measure the densities of liquids and solutions.

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.

 

Molality

Concentration expressed as number of moles of solute per kilogram of solvent.

Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Band Theory of Metals

Theory that accounts for the bonding and properties of metallic solids.

Alkaline Earth Metals

Group IIA metals

Ionic Geometry

The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.