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Compounds containing predominantly covalent bonds.

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Ionic Compounds

Compounds containing predominantly ionic bonding.

xenon

A heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe, at. wt.: 131.30, at. no.: 54.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

Ester

A Compound of the general formula R-C-O-R1 where R and R1 may be the same or different, and may be either aliphatic or aromatic.

Element

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

Polymerization

The combination of many small molecules to form large molecules.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid or gas) as the reactants. The process is called Homogeneous Catalysis.

Sigma Orbital

Molecular orbital resulting from head-on overlap of two atomic orbitals.