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Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.

 

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Dispersing Medium

The solvent-like phase in a colloid.

Ionization Isomers

Isomers that result from the interchange of ions inside and outside the coordination sphere.

Hydride

A binary compound of hydrogen.

 

Exothermicity

The release of heat by a system as a process occurs.

Lead Storage Battery

Secondary voltaic cell used in most automobiles.

Oxide

A binary compound of oxygen.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Hard Water

Water containing Fe3+, Ca2+, and Mg2+ ions, which forms precipates with soap.

Element

A substance that cannot be decomposed into simpler substances by chemical means.