old (Ch 6-8) sp 05 KEY

old (Ch 6-8) sp 05 KEY - 12 a) E = -1.5 x 10-19 J = 1.3 x...

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Chemistry 11 Section 1 Exam 3, April 19, 2005 KEY Question Answer 1 B 2 D 3 A 4 D 5 A 6 A 7 λ=4 cm; both have quantized (allowed) values 8 [Ne] 3s 2 3p 5 [Xe] 6s 1 [Rn] 7s 2 5f 8 9 Highest energy e- in 3d orbital: n=3, l=2, ml=–2, –1,0,1 or 2, ms = ½ or –½ 10 2 10 6d 11 Cr has 6 unpaired e- Cr 2+ has 4 unpaired e- Cr 3+ has 3 unpaired e- Therefore, Cr is most paramagnetic
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Unformatted text preview: 12 a) E = -1.5 x 10-19 J = 1.3 x 10-6 m b) E = +0.5 x 10-19 J Endothermic c) Similar: quantized energy levels Different: equidistant energy levels 13 Carbonate ion has resonance structures 14 FC(Ox) = -1 FC(Cl) = 0 H+ will bond to oxygen (given -1 FC opposite charges attract)...
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