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Reaction of a substance with water.

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Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.

Accuracy

How closely a measured value agrees with the correct value.

Secondary Standard

A solution that has been titrated against a primary standard. A standard solution is a secondary standard.

 

Substitution Reaction

A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.

Actinides

Elements 89 to 103 (between lawrencium and actinium) on the periodic table. Only the first four have been found in nature in appreciable amounts. The remainder have been produced synthetically.

D-Orbitals

Beginning in the third energy level, aset of five degenerate orbitals per energy level, higher in energy than s and p orbitals of the same energy level.

 

Standard Electrode Potential

By convention, potential, Eo, of a half-reaction as a reduction relative to the standard hydrogen electrode when all species are present at unit activity.

 

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.