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Equation that results from canceling spectator ions and eliminating brackets from a total ionic equation.

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Rate of Reaction

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

Standard Electrodes

Half-cells in which the oxidized and reduced forms of a species are present at unit activity, 1.0M solutions of dissolved ions, 1.0atm partial pressure of gases, and pure solids and liquids.

Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.

Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, there is no net change in concentrations of reactants or products while a system is at equilibrium.

Noble Gases (Rare Gases)

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

Beta Particle

Electron emitted from the nucleus when a neuton decays to a proton and an electron.

Nitrogen Cycle

The complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere, lithosphere and hydrosphere.

 

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Cis-

The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.