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Placing a thin layer of zinc on a ferrous material to protect the underlying surface from corrosion.

 

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Nitrogen Cycle

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

 

Octane Number

A number that indicates how smoothly a gasoline burns.

Cis-

The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.

Insoluble Compound

A very slightly soluble compound.

Alkylbenzene

A compound containing an alkyl group bonded to a benzene ring.

DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid or gas) as the reactants. The process is called Homogeneous Catalysis.

Eutrophication

The undesirable overgrowth of vegetation caused by high concentrates of plant nutrients in bodies of water.

Molar Solubility

Number of moles of a solute that dissolve to produce a litre of saturated solution.

Critical Point

The combination of critical temperature and critical pressure of a substance.