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The ability of one liquid to mix with (dissolve in) another liquid.

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Octet Rule

Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds, there are some limitations.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Heavy Water

Water containing deuterium, a heavy isotope of hydrogen.

Foam

Colloidal suspension of a gas in a liquid.

yttrium

A rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y, at. wt.: 88.905, at. no.: 39, sp. gr.: 4.47. Cf."rare-earth element."

Yttrium has a silver-metallic luster and is relatively stable in air unless finely divided. Turnings of the metal, however, ignite in air if their temperature exceeds 400oC. Yttrium oxide is one of the most important compounds of yttrium and accounts for the largest use. It is widely used in making YVO4 europium, and Y2O3 europium phosphors to give the red color in color television tubes.

Radical

An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)

Metallic Conduction

Conduction of electrical current through a metal or along a metallic surface.

Ionization Isomers

Isomers that result from the interchange of ions inside and outside the coordination sphere.

Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Manometer

A two-armed barometer.