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The particle pressure of a vapor at the surface of its parent liquid.

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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.

 

xenon trioxide

A colorless, nonvolatile solid, XeO3, explosive when dry: in solution it is called xenic acid.

Dipole

Refers to the separation of charge between two covalently bonded atoms.

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.

Differential Thermometer

A thermometer used for accurate measurement of very small changes in temperature.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Polyene

A compound that contains more than one double bond per molecule.

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

Alpha (a) Particle

Helium ion with 2+ charge, an assembly of two protons and two neutrons.