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Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

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yield

The quantity of product formed by the interaction of two or more substances, generally expressed as a percentage of the quantity obtained to that theoretically obtainable.

Essential Oil

A plant extract that has a distinctive odour or flavour.

Molarity

Number of moles of solute per litre of solution.

Oxidation-reduction Reactions

Reactions in which oxidation and reduction occur, also called redox reactions.

Carcinogen

A substance capable of causing or producing cancer in mammals.

 

Optical Activity

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

 

Electronic Geometry

The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

Avogadro's Number

The number (6.022x10^23) of atoms, molecules or particles found in exactly 1 mole of substance.

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.

Kinetic Energy

Energy that matter processes by virtue of its motion.