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Double bonds that are separated from each other by one single bond -C=C-C=C-.

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Radioactivity

The spontaneous disintegration of atomic nuclei.

Dermal toxicity

Adverse health effects resulting from skin exposure ot a substance.

Adsorption

Adhesion of a species onto the surfaces of particles.

Polymer

A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points.

Emulsion

Colloidal suspension of a liquid in a liquid.

Osmosis

The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

Conformations

Structures of a compound that differ by the extent of rotation about a single bond.

Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

Resonance

The concept in which two or more equivalent dot formulas for the same arrangement of atoms (resonance structures) are necessary to describe the bonding in a molecule or ion.

Critical Pressure

The pressure required to liquefy a gas (vapor) at its critical temperature.