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21 Cards in this Set
- Front
- Back
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What is symmetry?
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likeness of shape or arrangement about a center
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Are chiral molecules symmetrical or asymmetrical?
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asymmetrical
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most molecules which contain one or more sterocenters lack an internal plane of symmetry and are therefore ---.
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chiral
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The right handed and left handed forms of a chiral molecule make up a pair of stereoisomers called ---.
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enantiomers
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Are chiral molecules symmetrical or asymmetrical?
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asymmetrical
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most molecules which contain one or more sterocenters lack an internal plane of symmetry and are therefore ---.
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chiral
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The right handed and left handed forms of a chiral molecule make up a pair of stereoisomers called ---.
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enantiomers
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in r,s nomenclature, the atoms bonded directly to the stereocenter are ranked based on ---- from high to low.
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atomic weight
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H with a dashed line going clockwise is (R,S).
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R
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H with a dashed line going counter-clockwise is (R,S)
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S
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H with a solid line going clockwise is (R,S)
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S
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H with a solid line going counter-clockwise is (R,S)
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R
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What are diastereomers?
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sterioisomers that are non superimposible NON mirror images (One the same, one opposite between R and S)
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The pair of R and S forms of molecules are called what?
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enantiomers
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What are alkalide halides?
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compounds containing C,H, and a halogen with the halogen on an sp3 carbon.
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what are the polar aprotic solvents used for SN2 reactions?
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acetone, DMSO, and DMF
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what is the order of alkyl halide reactivity in an SN2?
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Methyl>1>2>X
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What are the polar protic solvents used in SN1 reactions?
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Water, Ethanol, Methanol
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What is the Alkyl Halide Reactivity for E1 and E2 reactions?
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3>2>1>Methyl
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What is Zaitsev's rule?
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elimination occurs to give the more stable (more substituted) alkene as the major product.
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