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Pair of electrons involved in a covalent bond.

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Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Radioactive Dating

Method of dating ancient objects by determining the ratio of amounts of mother and daughter nuclides present in an object and relating the ratio to the object?s age via half-life calculations.

Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.

Accuracy

How closely a measured value agrees with the correct value.

Conjugated Double Bonds

Double bonds that are separated from each other by one single bond -C=C-C=C-.

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.

Daughter Nuclide

Nuclide that is produced in a nuclear decay.

 

Differential Thermometer

A thermometer used for accurate measurement of very small changes in temperature.

Base

A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.