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Consisting of only one element.

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Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Density

Density is the ratio b/w Mass and Volume: D=M/V

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Rate-determining Step

The slowest step in a mechanism, the step that determines the overall rate of reaction.

pH

Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.

Equivalence Point

The point at which chemically equivalent amounts of reactants have reacted.

Evaporation Rate

The rate at which a particular substance will vapourize (evaporate) when compared to the rate of a known substance such as ethyl ether. This term is especially useful for health and fire-hazard considerations.

Bronsted-Lowry Base

A proton acceptor

Standard Entropy

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