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The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

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Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.

 

Oxidation-reduction Reactions

Reactions in which oxidation and reduction occur, also called redox reactions.

Ostwald Process

A process for the industrial production of nitrogen oxide and nitric acid from ammonia and oxygen.

Enantiomer

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

Heterogeneous Catalyst

A catalyst that exists in a different phase (solid, liquid or gas) from the reactants, a contact catalyst.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Heteronuclear

Consisting of different elements.

Molecular Geometry

The arrangement of atoms (not lone pairs of electrons) around a central atom of a molecule or polyatomic ion.

Gangue

Sand, rock, and other impurities surrounding the mineral of interest in an ore.

Tyndall Effect

The scattering of light by colloidal particles.