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The number of moles of a component of a mixture divided by the total number of moles in the mixture.

 

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Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Chemical Hygiene Plan (CHP)

A written program developed and implemented by an employer designating proceedures, equipment, personal protective equipment, and work practices that are capable of protecting employees from the health hazards presented by hazardous chemicals usid in that particular workplace.

Heisenberg Uncertainty Principle

It is impossible to determine accurately both the momentum and position of an electron simultaneously.

Ligand

A Lewis base in a coordination compound.

Exothermic

Describes processes that release heat energy.

Emulsion

Colloidal suspension of a liquid in a liquid.

Combination Reaction

Reaction in which two substances (elements or compounds) combine to form one compound.

Phase Diagram

Diagram that shows equilibrium temperature-pressure relationships for different phases of a substance.

Radical

An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)