key-eng-fall07-q8059x10

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

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
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. carbon dioxide CO 2 Other “resonance structures aren’t really great because one O will be -1 and the other O will be +1.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern