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A very slightly soluble compound.

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Heterogeneous Mixture

A mixture that does not have uniform composition and properties throughout.

Atomic Mass Unit (amu)

One twelfth of a mass of an atom of the carbon-12 isotope, a unit used for stating atomic and formula weights, also called dalton.

Saponification

Hydrolysis of esters in the presence of strong soluable bases.

Solute

The dispersed (dissolved) phase of a solution.

xenon

A heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe, at. wt.: 131.30, at. no.: 54.

Ozone

We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.

Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.

Debye

The unit used to express dipole moments.

Lone Pair

Pair of electrons residing on one atom and not shared by other atoms, unshared pair.

Phase Diagram

Diagram that shows equilibrium temperature-pressure relationships for different phases of a substance.