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Vaporization of a liquid below its boiling point.

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Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Oil

Liquid triester of glycerol and unsaturated fatty acids.

Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Eluate

Solvent (or mobile phase) which passes through a chromatographic column and removes the sample components from the stationary phase.

Gas of rotten eggs

If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

Reverse Osmosis

Forcing solvent molecules to flow through a semipermable membrane from a concentated solution into a dilute solution by the application of greater hydrostatic pressure on concentrated side than the osmotic pressure opposing it.

Periodic Table of Elements

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Effective Nuclear Charge

The nuclear charge experienced by the outermost electrons of an atom, the actual nuclear charge minus the effects of shielding due to inner-shell electrons.
Example: Set of dx2-y2 and dz2 orbitals, those d orbitals within a set with lobes directed along the x-, y-, and z-axes.