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Unformatted text preview: a. Li − Cl b. C − H c. O − H d. H − Cl 7. Which of the following molecules has a molecular dipole? a. CO 2 b. BF 3 c. NH 3 d. CH 4 8. Which of the following statements is not true about the carbonate anion, CO 3 2 − ? a. All of the oxygen atoms bear the same amount of charge b. All of the carbon-oxygen bonds are the same length c. The carbon atom bears the negative charge d. It is basic 9. Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH 3 COO − ? a. 1 b. 2 c. 3 d. 4 10. What is the approximate value of the H − C − H bond angles in a methyl cation, CH 3 + ? a. 90 ° b. 109 ° c. 120 ° d. 180 °...
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- Fall '05
- Atom, NH3, Molecule, ground-state electronic configuration