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A very slightly soluble compound.

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Solution

Homogeneous mixture of two or more substances.

Saccharide

An organic compound containing a sugar or sugars.

Oil

Liquid triester of glycerol and unsaturated fatty acids.

Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

xylene

Any of three oily, colorless, water-insoluble, flammable, toxic, isomeric liquids, C8H10, of the benzene series, obtained mostly from coal tar: used chiefly in the manufacture of dyes.

Polymer

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

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Thermonuclear Energy

The energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these processes a small amount of mass is converted to energy according to the relationship E = mc2, where E is energy, m is mass, and c is the speed of light.

Atmosphere

A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.

Radioactivity

The spontaneous disintegration of atomic nuclei.