fall03org1q1

fall03org1q1 - 10) Cyclohexane in a chair conformation has...

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Quiz #1 Ch 1-3 Fall 03 (20 questions for 20 points) N a m e If you do not want your graded quiz placed in the box outside my office, then please tick here (1-10) Are True or False. 1) The Periodic Table has the elements arranged alphabetically 2) A σ bond involves the sharing of two electrons 3) A π bond involves the sharing of two electrons 4) Carbon is more electronegative than chlorine 5) For substituted cyclohexanes, the bulkiest substituent prefers to go axial to minimize steric interactions 6) The electron configuration of Nitrogen is 1s 2 2s 2 2p 1 7) Boron has 5 electrons but only 3 valence electrons 8) sp hybrid orbitals give rise to bond angles of 109.5° 9) An sp 3 hybridized atom has an unhybridized p orbital, which lies at right angles to the plane of the hybrid orbitals
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Unformatted text preview: 10) Cyclohexane in a chair conformation has zero ring strain 11-15) Draw Lewis structures (lines for bonds, dots for lone pairs of electrons) for: 11) CH 3 OCH 2 OCF 3 12) B(CH 2 CH 3 ) 3 Fall03org1q1 Page1 13) NH 4 + 14) O O 15) HCO 2 H 16) Which element has the electronic configuration 1s 2 2s 2 2p 6 3s 1 ? 17) Circle the more stable anion. -CH 3 or -OH 18-20) For the below reaction of ammonia with hydrogen chloride: 18) Label the acid and base. 19) Circle the conjugate acid of the base. 20) Draw in the TWO curly arrows which describe the electron movement involved. NH 3 + H-Cl NH 4 + + Cl-* BONUS QUESTION for 1 extra point * Explain the main difference between a proton (found in a nucleus) and a proton (described as H + ). Fall03org1q1 Page2...
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This note was uploaded on 11/26/2011 for the course CHEM 250 taught by Professor Burche during the Fall '11 term at Rutgers.

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fall03org1q1 - 10) Cyclohexane in a chair conformation has...

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