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Chem 23
Review
8
Organic Chemistry
Undergraduate 2
07/09/2010
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Term
assigning formal charge
 Definition
# of valence electrons in neutral atom - [all nonbonding (unshared) electron pairs + 1/2 of all bonding (shared) electrons]
Term
reaction of alkenes
 Definition

-most common reaction=addition

-C=C double bond is broken and converted to C-C bond

-when unsymmetrical reagents (i.e. HBr or HOH) added to alkenes, 2 possible products

*Markovnikov's rule used to predict major product

*possible carbocation intermediates

-reactions w/ different reagents on d2l
Term
substitution/elimination
 Definition
Term
electrophile
 Definition
electron deficient atom, ion or molecule that has an affinity for an electron pair and will bond to a base or nucleophile
Term
nucleophile
 Definition
atom, ion or molecule that has an electron pair that may be donated in bonding to an electrophile (Lewis acid)
Term
electron donor (electron rich)
 Definition

-nucleophile

-base

-reductant

-anion
Term
electron acceptor (electron deficient)
 Definition

-electrophile

-acid

-oxidant

-cation
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