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Descibes the quantitative (mass) relationships among elements in compounds.

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Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Nucleons

Particles comprising the nucleus, protons and neutrons.

Electrolysis

Process that occurs in electrolytic cells.

Eluant or eluent

The solvent used in the process of elution, as in liquid chromatography.

 

Hydrogen-Oxygen Fuel Cell

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

 

Period

The elements in a horizontal row of the periodic table.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.

Hydrogen Bond

A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.

Emulsifying Agent

A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.