CHEM134 Midterm Exam Study Set
Nucleophile - answerAn electron pair donor; includes H2O, CN, F, X
Electrophile - answerAn electron pair acceptor; includes H, AlCl3, X-X
Polar Covalent Bond - answerA covalent bond between atoms that differ in
electronegativity. The shared electrons are pulled closer to the more electronegative
atom, making it slightly negative and the other atom slightly positive.
Non-Polar Covalent Bond - answera covalent bond in which the bonding electrons are
shared equally by the bonded atoms, resulting in a balanced distribution of electrical
charge
CH3 - answermethyl
CH2CH3 - answerethyl
CH2CH2CH3 - answerpropyl
OCH3 - answermethoxy
OCH2CH3 - answerethoxy
OCH2CH2CH3 - answerpropoxy
NH2 - answeramino
H-bonding - answerIMF; involves carboxylic acid, alcohol, esters; has the presence of
ether or halogen; must include N-H.
Dipole-Dipole Interactions - answerIMF; involves ketones, aldehydes, esters; has the
presence of ether or halogen.
London Dispersion Forces - answerIMF; only IMF that occur between hydrocarbons;
involve instantaneous dipoles.
Substitution Reaction - answerReaction involving the exchange of one group for
something different; keeps the same number of electron bonds.
Elimination Reaction - answerReaction involving the loss of bonds within a molecule;
results in less bonds within product.
Nucleophile - answerAn electron pair donor; includes H2O, CN, F, X
Electrophile - answerAn electron pair acceptor; includes H, AlCl3, X-X
Polar Covalent Bond - answerA covalent bond between atoms that differ in
electronegativity. The shared electrons are pulled closer to the more electronegative
atom, making it slightly negative and the other atom slightly positive.
Non-Polar Covalent Bond - answera covalent bond in which the bonding electrons are
shared equally by the bonded atoms, resulting in a balanced distribution of electrical
charge
CH3 - answermethyl
CH2CH3 - answerethyl
CH2CH2CH3 - answerpropyl
OCH3 - answermethoxy
OCH2CH3 - answerethoxy
OCH2CH2CH3 - answerpropoxy
NH2 - answeramino
H-bonding - answerIMF; involves carboxylic acid, alcohol, esters; has the presence of
ether or halogen; must include N-H.
Dipole-Dipole Interactions - answerIMF; involves ketones, aldehydes, esters; has the
presence of ether or halogen.
London Dispersion Forces - answerIMF; only IMF that occur between hydrocarbons;
involve instantaneous dipoles.
Substitution Reaction - answerReaction involving the exchange of one group for
something different; keeps the same number of electron bonds.
Elimination Reaction - answerReaction involving the loss of bonds within a molecule;
results in less bonds within product.
