MIDTERM 2 KEY-1

MIDTERM 2 KEY-1 - d 2.29 g Midterm Exam 2 CHEM 001 Fall...

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Midterm Exam 2, CHEM 001 Fall, 2006. (Chapters 8, 9, 10 and 11) Name: ______________________ Date: ____________ Please show all work and, where applicable, report all numerical answers to the proper number of significant figures. Please note that the chemical equations below may not be balanced. 1. Which of the following does not have a noble-gas electron configuration? a) Ne b) Ca 2+ c) Al d) O 2- 2. The sequence of coefficients for the balanced equation is NO 2 (g) + HCl (g) NO (g) + Cl 2 + H 2 O a) 2, 2, 1, 3, 3 b) 2, 4, 2, 2, 2 c) 2, 1, 2, 2, 2 d) 1, 2, 1, 1, 1 3 . If 21.5 g of carbon dioxide was produced in the reaction given below, the number of grams of butane, C 4 H 10 , used was… C 4 H 10 + O 2 CO 2 + H 2 O a) 5.15 g b) 114. g c) 7.10 g d) 28.4 g 4. How many grams of CO 2 will be produced if 1.00 g of C 2 H 5 OH is combusted in the presence of 2.50 g of O 2 ? C 2 H 5 OH + O 2 CO 2 + H 2 O a) 0.716 g b) 0.238 g c) 1.91 g
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Unformatted text preview: d) 2.29 g Midterm Exam 2, CHEM 001 Fall, 2006. (Chapters 8, 9, 10 and 11) 5. Based upon the octet rule, the correct Lewis structure for SO 2 is… 6. How many p orbitals are there in the 2p sublevel? a) 5 b) 3 c) 1 d) 7 7. Boron trifluoride, BF 3 , is a nonpolar molecule because… a) Fluorine is more electronegative than boron. b) The three fluorine atoms are bonded to the boron atom. c) The molecule has a triangular planer structure with the boron atom in the middle. d) The boron-fluorine bonds are polar covalent. 8. Which compound has a double bond within its molecular structure? a) NaCl b) C 2 H 4 c) CO d) H 2 O 9. Which series is ranked in order of increasing electronegativity? a) Ga, O, As, Se b) B, Al, Ga, In c) Sn, As, S, F d) C, N, O, B 10. Which atom has the largest atomic radius? a) Na b) F c) Ba d) Ca...
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This note was uploaded on 02/27/2010 for the course CHEM 1132 taught by Professor Cole/clark during the Spring '08 term at UCM.

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MIDTERM 2 KEY-1 - d 2.29 g Midterm Exam 2 CHEM 001 Fall...

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