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The mass of one molecule of a nonionic substance in atomic mass units.

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Substance

Any kind of matter all specimens of which have the same chemical composition and physical properties.

 

Silicones

Polymeric organosilicon compounds, contain individual or cross-linked Si-O chains or rings in which some oxygens of SiO4 tetrahedra are replaced by other groups.

Saccharide

An organic compound containing a sugar or sugars.

Fractional Precipitation

Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.

Solvolysis

The reaction of a substance with the solvent in which it is dissolved.

Enantiomer

One of the two mirror-image forms of an optically active molecule.

Valence Electrons

Outermost electrons of atoms, usually those involved in bonding.

Canal Ray

Stream of positively charged particles (cations) that moves toward the negative electrode in cathode ray tubes, observed to pass through canals in the negative electrode.

Alcohol

Hydrocarbon derivative containing an --OH group attached to a carbon atom not in an aromatic ring. Alcohols are a class of organic compounds containing the hydroxyl group, OH, attached to a carbon atom.

Nitrogen Cycle

The complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere, lithosphere and hydrosphere.