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13 Cards in this Set
- Front
- Back
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Absolute Zero
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The temperature at which all substances have no thermal energy, O K or -273 C
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Absorption Spectrum
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The series of discrete lines at characteristic frequencies representing the energy required to make an atom undergo a transition to a higher energy level
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Acid
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A species that donates hydrogen ions and/or accepts electrons.
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Acid Dissociation
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The equilibrium constant that measures the degree of dissociation for an acid under specific conditions.
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Acidic Solution
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An aqueous solution that contains for H+ ions than OH- ions. A pH of an acidic solution is less than 7 at 25C.
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Acidic Anhydride
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An oxide that dissolves in water to form an acidic solution.
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Activated complex
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The transition state of a reaction in which old bonds are partially broken and new bonds are partially formed. The activated complex has a higher energy than the reactants or products of the reaction.
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Activation energy
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The minimum amount of energy required for a reaction to occur.
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Adiabatic Process
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A process that occurs without the transfer of heat to or from the system.
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Alcohols
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Organic compounds of the general formula -OH
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Aldehydes
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Organic Compounds of the general formula -CHO
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Alkali metals
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Elements found in group IA of the periodic table. They are highly reactive, readily losing their one valence electron to form ionic compounds with nonmetals.
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Alkaline Earth Metals
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Elements found in Group IIA of the periodic table. Their chemistry is similar to that of the alkali metals, except that they have two valence electrons, and thus from 2+ cations
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