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The energy change accompanying the hydration of a mole of gase and ions.

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Isomorphous

Refers to crystals having the same atomic arrangement.

Base

A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.

Particulate Matter

Fine divided solid particles suspended in polluted air.

Organic Chemistry

The chemistry of substances that contain carbon-hydrogen bonds.

Enthalpy

The heat content of a specific amount of substance, defined as E= PV.

Polymer

A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points.

Alkaline Earth Metals

Group IIA metals

Dipole-dipole Interactions

Attractive interactions between polar molecules, that is, between molecules with permanent dipoles.

Designated area

An area that may be used for work with carcinogens, reproductive toxins, or substances that have a high degree of acute toxicity. A designated area may be the entire laboratory, an area of a laboratory, or a device such as a laboratory hood.

Dumas Method

A method used to determine the molecular weights of volatile liquids.