Exam 2 - DrRuth says: In all cases, select the answer that...

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Unformatted text preview: DrRuth says: In all cases, select the answer that BEST answers the question asked. The total points on this exam is 400. Read the whole thing first and plan which to answer first because you feel confident about them. Notice the hardest ones and save them till last so you dont use up all your time working on them. Shear 52375 The table below lists electronegativity val- ues for the first six rows. The bottom row and the lanthanides and actinides list atomic weights. Just ignore them. Dont forget, if you need them, molecular weights are on the periodic table on your scantron. 1 18 1A 8A 1 2 H 2 13 14 15 16 17 He 2.2 2A 3A 4A 5A 6A 7A 3 4 5 6 7 8 9 10 Li Be B C N O F Ne 1.0 1.6 2.0 2.6 3.0 3.4 4.0 11 12 13 14 15 16 17 18 Na Mg Al Si P S Cl Ar 0.9 1.3 3B 4B 5B 6B 7B 8B 1B 2B 1.6 1.9 2.2 2.6 3.2 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 0.8 1.0 1.4 1.5 1.6 1.7 1.6 1.8 1.9 1.9 1.9 1.7 1.8 2.0 2.2 2.6 3.0 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe 0.8 1.0 1.2 1.3 1.6 2.2 1.9 2.3 2.2 2.2 1.9 1.7 1.8 2.0 2.1 2.1 2.7 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn 0.8 0.9 1.0 1.3 1.5 2.4 1.9 2.2 2.2 2.3 2.5 2.0 2.0 2.3 2.0 2.0 2.2 87 88 89 104 105 106 107 108 109 110 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds (223) (226) (227) (261) (262) (266) (262) (277) (268) ( ) 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu 140.1 141.0 144.2 145.0 150.3 152.0 157.2 158.9 162.5 164.9 167.3 168.9 173.0 175.0 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 232.0 231.0 238.0 (237) (244) (243) (247) (247) (251) (252) (257) (258) (259) (260) Version 160 Exam Two: Shear Shear (52375) 2 This print-out should have 35 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points In the hydrogen chloride molecule HCl the chlorine end of the molecule is more negative than the hydrogen end because 1. hydrogen and chlorine have the same elec- tronegativity. 2. chlorine is more electronegative than hy- drogen. correct 3. hydrogen transfers an electron to chlo- rine. 4. hydrogen is more electronegative than chlorine. Explanation: In a chemical bond the electrons are more strongly attracted toward the more elec- tronegative atom. 002 10.0 points The diatomic molecule Ne 2 appears not to exist. In terms of the molecular orbital theory, it is probably because 1. the energies of the antibonding orbitals are lower than the bonding orbitals....
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This note was uploaded on 11/08/2010 for the course CHEM 301 taught by Professor Wandelt during the Spring '08 term at University of Texas at Austin.

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Exam 2 - DrRuth says: In all cases, select the answer that...

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