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A solid compound that contains a definite percentage of bound water.

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Oxidation-reduction Reactions

Reactions in which oxidation and reduction occur, also called redox reactions.

Detergent

A soap-like emulsifer that contains a sulfate, SO3 or a phosphate group instead of a carboxylate group.

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.

 

Mass Number

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

Octane Number

A number that indicates how smoothly a gasoline burns.

Active Metal

Metal with low ionization energy that loses electrons readily to form cations.

Coke

An impure form of carbon obtained by destructive distillation of coal or petroleum.

Mixture

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

Ionic Bonding

Chemical bonding resulting from the transfer of one or more electrons from one atom or a group of atoms to another.

Levorotatory

Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.