HW6 - nguyen(jn9225 – H06 Bonding – mccord –(50950 1...

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Unformatted text preview: nguyen (jn9225) – H06 : Bonding – mccord – (50950) 1 This print-out should have 33 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Please NOTE: All students in Dr. Mc- Cord’s MWF 9am class (50950) will go to our regular classroom of WEL 2.224 for the 7-9 PM Exam on Tuesday, October 4th. 001 10.0 points Let X be a hypothetical element. Which of the following would be largest? 1. X + 2. X- 3. X 2+ 4. X 5. X 2- 002 10.0 points If the following crystallize in the same type of structure, which has the lowest lattice energy? 1. SrS 2. SrO 3. CaO 4. BaO 5. BaS 003 10.0 points Which pair of elements is most likely to form an ionic compound? 1. magnesium and fluorine 2. sodium and aluminum 3. oxygen and chlorine 4. nitrogen and sulfur 004 10.0 points Compounds which are characterized as cova- lent are generally made up of elements found in which part of the Periodic Table? 1. upper right 2. lower left 3. upper left 4. left and right 005 10.0 points Which is the correct order of increasing bond strength? 1. single, double, triple 2. double, triple, single 3. single, triple, double 4. triple, double, single 5. double, single, triple 006 10.0 points Which do you predict to have the strongest CN bond? 1. All are equal 2. NH 2 CH 3 3. NHCH 2 4. HCN 007 10.0 points Which of the following contains only covalent bonding and no ionic bonding? 1. Na 2 SO 4 2. CCl 4 3. Ca(NO 3 ) 2 nguyen (jn9225) – H06 : Bonding – mccord – (50950) 2 4. NaCl 5. NaOH 008 10.0 points How many valence electrons are in a Sn atom? 1. 2. 2 3. 14 4. 4 5. 8 009 10.0 points The P 2- anion has how many total electrons and how many valence electrons? 1. 18; 8 2. 15; 6 3. 17; 7 4. 15; 5 5. 16; 5 6. 17; 8 7. 17; 6 8. 16; 6 9. 16; 7 10. 15; 7 010 10.0 points What total number of valence electrons should appear in the dot formula for the chlo- rate ion ClO- 3 ?...
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HW6 - nguyen(jn9225 – H06 Bonding – mccord –(50950 1...

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