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

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Dimer

Molecule formed by combination of two smaller (identical) molecules.

Mole Fraction

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

 

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Outer Orbital Complex

Valence bond designation for a complex in which the metal ion utilizes d orbitals in the outermost (occupied) shell in hybridization.

xylan

The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.

Net Ionic Equation

Equation that results from canceling spectator ions and eliminating brackets from a total ionic equation.

Periodic Law

The properties of the elements are periodic functions of their atomic numbers.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

Molecular Weight

The mass of one molecule of a nonionic substance in atomic mass units.

Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.