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A mixture which has uniform composition and properties throughout.

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Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Binding Energy (nuclear binding energy)

The energy equivalent (E = mc^2) of the mass deficiency of an atom.  where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2

Oxidizing Agent

The substance that oxidizes another substance and is reduced.

Mass Deficiency

The amount of matter that would be converted into energy if an atom were formed from constituent particles.

Homogeneous Mixture

A mixture which has uniform composition and properties throughout.

Acidic Salt

A salt containing an ionizable hydrogen atom. Acidic salt does not necessarily produce acidic solutions.

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DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Fractional Distillation

The process in which a fractioning column is used in distillation apparatus to separate components of a liquid mixture that have different boiling points.

Primary Voltaic Cells

Voltaic cells that cannot be recharged, no further chemical reaction is possible once the reactants are consumed.