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Forces between individual particles (atoms, molecules, ions) of a substance.

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Copper

Discovered : known to ancient civilisations
Origin : The name is derived from 'Cuprum', the Latin name for Cyprus.

Critical Temperature

The temperature above which a gas cannot be liquefied, the temperature above which a substance cannot exhibit distinct gas and liquid phases.

Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Formula Weight

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

 

Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

Graham's Law

The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

Saturated Solution

Solution in which no more solute will dissolve.

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

Alloying

Mixing of metal with other substances (usually other metals) to modify its properties.

Combustible

Classification of liquid substances that will burn on the basis of flash points. A combustible liquid means any liquid having a flash point at or above 37.8°C (100°F) but below 93.3°C (200°F), except any mixture having components with flash points of 93.3°C (200°F) or higher, the total of which makes up 99 percent or more of the total volume of the mixture.

Liquid Aerosol

Colloidal suspension of liquid in gas.

xenon hexafluoride

A colorless, crystalline compound, XeF6, that melts at 50°C to a yellow liquid, and boils at 75°C.

Frequency

The number of repeating corresponding points on a wave that pass a given observation point per unit time.

Coordination Isomers

Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.

Dispersing Medium

The solvent-like phase in a colloid.

ytterbia

Ytterbia is a colorless compound, Yb2O3, used in certain alloys and ceramics. Also known as ytterbium oxide.

Oxide

A binary compound of oxygen.

Enzyme

A protein that acts as a catalyst in biological systems.