J. Muench WORKSHEET #9 ______________________ CHEM 161 name 1. Show the formation of the IONIC compound using Lewis dot symbols. Remember that ionic compounds DO NOT share electrons. Ex) Na + Cl Na+ + Cl -1 a. MgO b. Na2S 2. Arrange the following ionic compounds in order of increasing lattice energy. CaO , LiI , MgF2 , SrBr2 3. How would you classify the following bonds (ionic, polar covalent, or pure covalent)? a. Se – O b. Ca – Br c. C – S 4. Use the following three ions for the questions that follow: NO2+1, NO2-1, and NO3-1. a. Draw Lewis structure(s) for each of the three ions. Include any resonance structures.J. Muench b. What are the N-O bond orders in each of the ions? c. Which ion will have the shortest N-O bond distance? The longest? 5. Complete the Lewis structures below and determine the H for EACH reaction. Note that these are only SKELETON structutres. Bond enthalpies can be found on p. 330. a. H H H H C C C H + 5 O2 3 O C O + 4 H O H H H H b. H H H C N + 2 H H H C N H
View Full Document