key-eng-fall07-q8059x10

key-eng-fall07-q8059x10 - CHEM 2045C: Quiz 10 (26 Nov 07)...

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CHEM 2045C: Quiz 10 (26 Nov 07) NAME ___________________________ N #_____________ Show your work for full credit Eng Q8059x10 Version A 1. (2 pts) Give examples of substances with the following types of bonding. ionic bonding many examples such as NaCl, SrO, etc covalent bonding many examples such as H 2 , H 2 O, SF 4 , CH 4 , etc 2. (2 pts) Draw the Lewis dot symbols for B and S. 3. (2 pts) Order the following from lowest to highest (absolute values of) lattice energies: RbCl, LiF, ScN. RbCl < LiF < ScN 4. (2 pts) Circle the pairs that will make polar covalent bonds. Ca and Cl Na and Cl H and Cl C and Cl Cl and Cl 5. (15 pts) Draw the Lewis structures (or Lewis electron-dot structures) for the following. You must draw all reasonable resonance structures to earn full credit. Furthermore, points will be deducted for unreasonable resonance structures. i. water H 2 O Sadly, 12 out of 41 students missed water!!! ii.
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key-eng-fall07-q8059x10 - CHEM 2045C: Quiz 10 (26 Nov 07)...

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