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25 Cards in this Set
- Front
- Back
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Band
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An array of closely spaced molecular orbitals occupying a discrete range of energy.
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Band gap
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the gap between an occupied valence band and a vacant band called the conduction band
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Bar
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A unit of pressure equal to 10^5
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Base
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A substance that is an H+ acceptor; produces an excess of OH- ions when it dissolves in water
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Base-dissociation constant
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An equilibrium constant that expresses the extent to which a base reacts with solvent water, accepting a proton and forming OH-
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Basic anhydride
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An oxide that forms a base when added to water; soluble metal oxides are basic anhydrides
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Basic oxide
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An oxide either reacts with water to form a base or reacts with an acid to form a salt and water
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Battery
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A self contained electrochemical power source that contains one or more voltaic cells
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Bayer process
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A hydrometallurgical procedure for purifying bauxite in the recovery of aluminum from bauxite-containing ores
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Becquerel
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The SI unit of radioactivity. it corresponds to one nuclear disintegration per second
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Beer's Law
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The light absorbed by a substance (A) equals the product of its molar absorptivity constant (a), the path lenght through which the light passes (b), and the molar concentration of the substance (c) A=abc
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Beta particles
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Energetic electrons emitted from the nucleus
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Bidentate ligand
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A ligand in which two linked coordinating atoms are bound to a metal
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Bimolecular Reaction
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An elementary reaction that involves two molecules
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Biochemistry
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The study of the chemistry of living systems
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Biocompatible
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Any substance or material that can be compatibly placed within living systems
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Biodegradable
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Organic material that bacteria are able to oxidize
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Biomaterial
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Any material that has a biomedical application
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Biopolymer
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A polymeric molecule of high molecular weight found in living systems, it has three major classes: proteins, carbohydrates, and nucleic acids
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Body-centered cubic cell
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A cubic unit cell in which the lattice points occur at the corners and at the center
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Bomb calorimeter
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Adevice for measuring the heat evolved in the combustion of a substance under constant volume conditions
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Bond angles
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The angles made by the lines joining the nuclei of the atoms in a molecule
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Bond dipole
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The dipole moment that is due to unequal electron sharing between two atoms in a covalent bond
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Bond enthalpy
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The enthalpy change required to break a particular bond when the substance is in the gas phase
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Bonding atomic radius
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The radius of an atom as defined by the distances separating it from other atoms to which it is chemically bonded
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