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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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Solvolysis

The reaction of a substance with the solvent in which it is dissolved.

Osmosis

The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Delocalization

Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.

Chemical Bonds

The attractive forces that hold atoms together in elements or compounds.

Electromotive Series

The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.

Mass

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

Isomers

Different substances that have the same formula.

Carcinogen

A substance capable of causing or producing cancer in mammals.

 

End Point

The point at which an indicator changes colour and a titration is stopped.