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Any kind of matter all specimens of which have the same chemical composition and physical properties.

 

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All Chemicals - Chemical Glossary

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.

Weak Field Ligand

A Ligand that exerts a weak crystal or ligand field and ge- nerally forms high spin complexes with metals.

Molecule

The smallest particle of an element or compound capable of a stable, independent existence.

Weak Electrolyte

A substance that conducts electricity poorly in a dilute aqueous solution.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Nuclear Reactor

A system in which controlled nuclear fisson reactions generate heat energy on a large scale, which is subsequently converted into electrical energy.

Primary Standard

A substance of a known high degree of purity that undergoes one invariable reaction with the other reactant of interest.

Thermodynamics

The study of the energy transfers accompanying physical and chemical processes.

Reversible Reaction

Reactions that do not go to completion and occur in both the forward and reverse direction.

Optical Activity

The rotation of plane polarized light by one of a pair of optical isomers.