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A thermodynamic state or property that measures the degree of disorder or randomness of a system.

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Combustible

Classification of liquid substances that will burn on the basis of flash points. A combustible liquid means any liquid having a flash point at or above 37.8°C (100°F) but below 93.3°C (200°F), except any mixture having components with flash points of 93.3°C (200°F) or higher, the total of which makes up 99 percent or more of the total volume of the mixture.

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.

Hydration

Reaction of a substance with water.

Hydride

A binary compound of hydrogen.

 

Oxidizing Agent

The substance that oxidizes another substance and is reduced.

Hydration Energy

The energy change accompanying the hydration of a mole of gase and ions.

Aldehyde

Compound in which an alkyl or aryl group and a hydrogen atom are attached to a carbonyl group and a hydrogen atom are attached to a carbonyl group, general formula, O-R-C-H

 

Buret

A piece of volumetric glassware, usually graduated in 0.1-mL intervals, that is used to deliver solutions to be used in titrations in a quantitative (dropwise) manner.

Water Equivalent

The amount of water that would absorb the same amount of heat as the calorimeter per degree temperature increase.