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An equilibrium in which processes occur continuously, with no net change. When two (or more) processes occur at the same rate so that no net change occurs.

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Hydration

Reaction of a substance with water.

Heavy Water

Water containing deuterium, a heavy isotope of hydrogen.

Solubility Product Principle

The solubility product constant expression for a slightly soluble compound is the product of the concentrations of the constituent ions, each raised to the power that corresponds to the number of ions in one formula unit.

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.

Spectral Line

Any of a number of lines corresponding to definite wavelengths of an atomic emission or absorption spectrum, represents the energy difference between two energy levels.

 

Fractional Precipitation

Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.

Radioactivity

The spontaneous disintegration of atomic nuclei.

Lewis Dot Formula (Electron Dot Formula)

Representation of the core of a molecule, ion or formula unit by showing atomic symbols and only outer shell electrons.

Endothermic

Describes processes that absorb heat energy.

Cyclotron

A device for accelerating charged particles along a spiral path.