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Elements 58 to 71 (after lanthanum).

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Saturated Solution

Solution in which no more solute will dissolve.

Octahedral

A term used to describe molecules and polyatomic ions that have one atom in the center and six atoms at the corners of a octahedron.

Water Equivalent

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

Ionic Bonding

Chemical bonding resulting from the transfer of one or more electrons from one atom or a group of atoms to another.

Amphiprotism

Ability of a substance to exhibit amphiprotism by accepting donated protons.

Double Bond

Covalent bond resulting from the sharing of four electrons (two pairs) between two atoms.

Heat

A form of energy that flows between two samples of matter because of their differences in temperature.

Coordination Number

In describing crystals, the number of nearest neighbours of an atom or ion. The number of donor atoms coordinated to a metal.

Ketone

Compound in which a carbonyl group is bound to two alkyl or two aryl groups, or to one alkyl and one aryl group.

Substitution Reaction

A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.

Ion

An atom or a group of atoms that carries an electric charge.

Theoretical Yield

Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.

Density

Density is the ratio b/w Mass and Volume: D=M/V

Partial Pressure

The pressure exerted by one gas in a mixture of gases.

Lewis Acid

Any species that can accept a share in an electron pair.

Effective Molality

The sum of the molalities of all solute particles in a solution.

Emulsifying Agent

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

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.

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Coulomb

Unit of electrical charge.