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The unit used to express dipole moments.

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Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Chemistry of the sky

Chemistry can teach us about the composition of celestial bodies and determine their age.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Nuclides

Refers to different atomic forms of all elements in contrast to ?isotopes?, which refer only to different atomic forms of a single element.

Hydrogen

Discovered : by Henry Cavendish in 1766.
Isolated in London, UK.
Origin : The name is derived from the Greek ‘hydro genes’, meaning water forming.
Description :A colourless, odourless gas that burns and can form an explosive mixture with air. It is currently manufactured from methane gas, but is also produced by the electrolysis of water and aqueous salts. The gas is used to make such key materials as ammonia, cyclohexane and methanol, which are intermediates in the production of fertilisers, plastics and pharmaceuticals. Some see hydrogen gas as the clean fuel of the future - generated from water and returning to water when it is oxidised. Hydrogen-powered fuel cells are increasingly being seen as pollution-free sources of energy.

Chemical Periodicity

The variations in properties of elements with their position in the periodic table.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.

Octane Number

A number that indicates how smoothly a gasoline burns.

Electrode Potentials

Potentials, E, of half-reactions as reductions versus the standard hydrogen electrode.

Ionization

In aqueous solution, the process in which a molecular compound reacts with water and forms ions.