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A positive ion, an atom or group of atoms that has lost one or more electrons.

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Equation of State

An equation that describes the behavior of matter in a given state, the van der Waals equation describes the behavior of the gaseous state.

Dubnium

Discovered : at both Berkeley, California, USA, and Dubna, near Moscow, Russia in 1970. Description:A highly radioactive metal which does not occur naturally, and of which only a few atoms have ever been made. It is of research interest only. Origin:The element is named after the Russian town of Dubna.

Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Hydration

Reaction of a substance with water.

Coulomb

Unit of electrical charge.

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Noble Gases (Rare Gases)

Elements of the periodic Group 0, also called rare gases, formerly called inert gases, He,Ne,Ar, Kr, Xe, Rn.

Pineapple literally "erodes" the tongue

Everyone who has ever tried fresh pineapple knows that if you eat too much, your lips and tongue hurt for a while. This is because the pineapple contains an enzyme called bromelain. This enzyme literally "erodes" the tongue.

Denaturation

A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.

Oil

Liquid triester of glycerol and unsaturated fatty acids.