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The scattering of light by colloidal particles.

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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.

 

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Moderator

A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.

Energy

The capacity to do work or transfer heat.

Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Particulate Matter

Fine divided solid particles suspended in polluted air.

Heat of Crystallization

The amount of heat that must be removed from one gram of a liquid at its freezing point to freeze it with no change in temperature.

Buret

A piece of volumetric glassware, usually graduated in 0.1-mL intervals, that is used to deliver solutions to be used in titrations in a quantitative (dropwise) manner.

Metathesis Reactions

Reactions in which two compounds react to form two new compounds, with no changes in oxidation number. Reactions in which the ions of two compounds exchange partners.

 

Chain Termination Step

The combination of two radicals, which removes the reactive species that propagate the change reaction.