CHEM 2535 Problem Set #1 25 points + extra credit Name _________________________ Due: September 5, 2008 Open book; open notes. Collaboration encouraged but not copying. Write responses on this sheet. (6 points) 1. Draw one reasonable Lewis Structure for each of the given molecular formula. (a) C2H3N (b) H2O2(c) HNO3(9 points) 2. (a) Draw one Lewis structure for each covalent species below. Show lone pairs and (non-zero) atom charges. (b) State whether each compound is polar or non-polar. (a) NH3(b) C2H6O (c) BF3(10 points) 3. The correct expanded Lewis structure of a certain compound is shown below. The rigidity of the double bond defines a
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