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Compound containing both an amino and a carboxylic acid group.The --NH2 group.

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Cathode Ray Tube

Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.

Ternary Compound

A compound consisting of three elements, may be ionic or covalent.

Total Ionic Equation

Equation for a chemical reaction written to show the predominant form of all species in aqueous solution or in contact with water.

Debye

The unit used to express dipole moments.

Reversible Reaction

Reactions that do not go to completion and occur in both the forward and reverse direction.

xylose

A colorless, crystalline pentose sugar, C5H10O5, derived from xylan, straw, corncobs, etc., by treating with heated dilute sulfuric acid, and dehydrating to furfural if stronger acid is used.

Polyene

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

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

Film badge

A small patch of photographic film worn on clothing to detect and measure accumulated incident ionizing radiation.

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.