Chem 120 Exam 1 UPDATED Exam Questions and CORRECT Answers

Chem 120 Exam 1 UPDATED Exam
Questions and CORRECT Answers
Carbon has ___ valence electrons - CORRECT ANSWER -four



Carbon has a limit of __ bonds - CORRECT ANSWER -4



Carbon is a non metal so _____ bonding is prevelant - CORRECT ANSWER -Covalent



Carbons electron configuration is - CORRECT ANSWER -1s(2)2s(2)2p(2)


Orbitals 2s(2) and 2p(2) are valence electrons capable of bonding but..... - CORRECT
ANSWER -are different energies so electrons must be on the same level



sp3 hybridization - CORRECT ANSWER -Mixing all four orbitals together - single bonds



sp2 hybridization - CORRECT ANSWER -Mixing three out of four orbitals together -
double bonds


sp hybridization - CORRECT ANSWER -Two out of four orbitals mix- triple bonds



The shape of sp3 is ______ with a bond angle of ______ - CORRECT ANSWER -
Tetrahedral , 109.5


The shape of sp2 is ______ with a bond angle of ______ - CORRECT ANSWER -
Trigonal Planar, 120


The shape of sp is ______ with a bond angle of ______ - CORRECT ANSWER -Linear,
180

, The orbitals from longest to shortest are - CORRECT ANSWER -Sp3, sp2, sp



The only hybridization orbital that has rotation is - CORRECT ANSWER -Sp3



Does Hydrogen s orbital hybridize? - CORRECT ANSWER -No



Functional groups - CORRECT ANSWER -Share similar chemical properties and
chemical behavior


Alkane - CORRECT ANSWER -Every carbon has 4 single bonds



Alkene - CORRECT ANSWER -Carbons have double or single bonds



Alkyne - CORRECT ANSWER -Carbons have triple or single bonds



Alkane formula - CORRECT ANSWER -C[n]H(2n+2)



Saturated molecule - CORRECT ANSWER -Maximum number of hydrogens



Constitutional isomers - CORRECT ANSWER -same molecular formula, different
connectivity


condensed structure - CORRECT ANSWER -Does not show bonding
EX- CH3CH2CH2CH3


Structural - CORRECT ANSWER -Elaborated, SHOWS ALL BONDS