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The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

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Most Popular

Electrophoresis

A technique for separation of ions by rate and direction of migration in an electric field.

Valence Shell Electron Pair Repulsion Theory

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.

 

Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.

 

Bomb Calorimeter

A device used to measure the heat transfer between system and surroundings at constant volume.

xanthene dye

Any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C6H4) groups are the chromophore.

 

Artificial Transmutation

An artificially induced nuclear reaction caused by the bombardment of a nucleus with subatomic particiles or small nucei.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Cation

A positive ion, an atom or group of atoms that has lost one or more electrons.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Active Metal

Metal with low ionization energy that loses electrons readily to form cations.