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A device used for accelerating charged particles along a straight line path.

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Electroplating

Plating a metal onto a (cathodic) surface by electrolysis.

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

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.

yttria

Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.

Coulometry

The quantitative application of Faraday's Law to the analysis of materials. The current and time are the usual variables measured.

Evaporization

Vaporization of a liquid below its boiling point.

Hydration

Reaction of a substance with water.

Downs Cell

Electrolytic cell for the commercial electrolysis of molten sodium chloride. For further information see Electrochemistry or Fuel Cells.

Electron Deficient Compounds

Compounds that contain at least one atom (other than H) that shares fewer than eight electrons.