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Chapter 13 Extra Practice

# Chapter 13 Extra Practice - Chapter Thirteen Extra Practice...

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1 Chapter Thirteen Extra Practice Problem 1. Which bond is more polar? Indicate which atom has the partial negative charge in each bond. a) B-Cl or C-Cl B-Cl is more polar; Cl has partial negative charge b) P-F or P-Cl P-F is more polar; F has partial negative charge 2. Which of the following bonds is most polar: S-Cl, S-Br, Se-Cl, or Se-Br? Se-Cl 3. Draw the Lewis structure for phosphorus trichloride. The valence electron count is 26 electrons. P is the central atom, and it is connected to each of the three Cl atoms by a single bond. There is a lone pair on the P atom, and there are three lone pairs on each Cl atom. 4. How many valence electrons should appear in the Lewis structure for CH 2 Cl 2 ? Draw the Lewis structure for the molecule. The valence electron count is 20 electrons. C is the central atom, and it is connected to both H and both Cl by a single bond. The C atom has no lone pairs. Neither H atom has any lone pairs. Each Cl atom has three lone pairs of electrons. 5. Draw the Lewis structure for NO + . There are 10 valence electrons. The N and O atoms are connected by a triple bond, and each atom has one lone pair. 6. Draw the Lewis structure for the bromate ion. Bromate is BrO 3 - . There are 26 valence electrons. Br is the central atom, and it is connected to each of the three oxygen atoms by single bonds. Each O atom has three lone pairs, and there is one lone pair of electrons on the central Br atom.

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Chapter 13 Extra Practice - Chapter Thirteen Extra Practice...

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