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Covalent bond in which there is an unsymmetrical distribution of electron density.

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Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Method of Initial Rates

Method of determining the rate-law expression by carrying out a reaction with different initial concentrations and analyzing the resultant changes in initial rates.

Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Free Energy Change

The indicator of spontaneity of a process at constnt T and P. If delta-G is negative, the process is spontaneous.

Atomic Number


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

Optical Activity

The rotation of plane polarized light by one of a pair of optical isomers.

 

Weak Electrolyte

A substance that conducts electricity poorly in a dilute aqueous solution.

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.

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Critical Mass

The minimum mass of a particular fissionable nuclide in a given volume required to sustain a nuclear chain reaction.