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Practice Problems H S SO CH Br HCN

CHM 130 Chapter 12 page 1 of 4 Practice Problems 2. Draw the lewis dot structures for each of the following molecules: a. H2S c. SO3 b. CH2Br2 d. HCN 3. Draw the lewis dot structure for each of the following polyatomic ions: a. NH4+ c. PO4 3 b. NO3 d. CO32 4. For the following molecules or ions (where the central atom is underlined): i. Draw the electron dot structure . ii. Determine the shape of the molecule. iii. Determine the approximate bond angles. a. CH2F2 b. OF2 CHM 130 Chapter 12 page 2 of 4 c. phosphite ion, PO3 3 5.

2. Draw the Lewis dot structures for each of the following molecules: a. H 2 S c. SO 3 b. CH 2 Br 2 d. HCN 3. Draw the Lewis dot structure for each of the following polyatomic ions: a. NH 4 + c. PO 4 –3 b. NO 3 – d. CO 3 2– 4. For the following molecules or ions (where the central atom is underlined): i. Draw the Electron dot structure. ii.

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