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

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Mass Spectrometer

An instrument that measures the charge-to-mass ratio of charged particles.

Transition State Theory

Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Donor Atom

A ligand atom whose electrons are shared with a Lewis acid.

High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

xanthene dye

Any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C6H4) groups are the chromophore.

 

Beta Particle

Electron emitted from the nucleus when a neuton decays to a proton and an electron.

Downs Cell

Electrolytic cell for the commercial electrolysis of molten sodium chloride. For further information see Electrochemistry or Fuel Cells.

Fat

Solid triester of glycerol and (mostly) saturated fatty acids.