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Change in the concentration of a reactant or product per unit time.

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Leveling Effect

Effect by which all acids stronger than the acid that is characteristic of the solvent react with solvent to produce that acid, similar statement applies to bases. The strongest acid (base) that can exist in a given solvent is the acid (base) characteristic of the solvent.

Faraday's Law of Electrolysis

One equivalent weight of a substance is produced at each electrode during the passage of 96,487 coulombs of charge through an electrolytic cell.

Joule

A unit of energy in the SI system. One joule is 1 kg. m2/s2 which is also 0.2390 calorie.

Handmade crystal glass as a work of art

In order for the colored crystal to open in all its beauty and sparkle with every face natural light is required. Handmade crystal glass has specific tactile and aesthetic properties - it is pleasant to touch, it seems to radiate heat. To appreciate the quality and beauty of such things, of course, it is not enough to look at the picture.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Electron Affinity

The amount of energy absorbed in the process in which an electron is added to a neutral isolated gaseous atom to form a gaseous ion with a 1- charge, has a negative value if energy is released.

Standard Entropy

The absolute entropy of a substance in its standard state at 298 K.

Vapor

A gas formed by boiling or evaporating a liquid.

Ionization

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

Group

A vertical column in the periodic table, also called a family.