Chapter 1.3, Problem 8P

Write the Lewis symbols for the ions in each ionic compound.a. SrO b. Li2S c. CaI2 d. RbF

Write the Lewis structure for each molecule.a. CH2O b. C2Cl4

Draw the Lewis symbol for each atom or ion. a. Al b. Na^+ c. Cl d. Cl^-

116) Write Lewis structures and predict whether each of the following is polar or nonpolar. a. HOCN (exists as HO−CN) c. XeF2e. SeF6 b. COSd. CF2Cl2f. H2CO (C is the central atom)

Write Lewis structures that obey the octet rule for each of the following. a. HCN b. PH3 c. CHCl3 d. NH4+ e. H2CO f. SeF2 g. CO2 h. O2 i. HBr Except for HCN and H2CO, the first atom listed is the central atom. For HCN and H2CO , carbon is the central atom.

30. Select the correct Lewis structure for SRF2, which is an ionic compound. 1- 1- A. Sr2+ В. Sr C. Sr D. Sr Е. None of the above

Write an appropriate Lewis structure for each compound. Make certain to distinguish between ionic and molecular compounds.a. Al2O3 b. ClF5c. MgI2 d. XeO4

5. Write the chemical formula that results when the following pairs of ions combine to form an ionic bond. a. Sr2* and 02- b. Mn4 and O2- C. Lit and CI- d. Cst+ and Sz-

2. Avogadro does not "waste" his time drawing a Lewis structure before determining the shape of PF3. He thinks that the shape of PF3 must be trigonal planar because there are three fluorine atoms bonded to the central phosphorus atom. a. Draw the Lewis structure for PF3. b. Was Avogadro's answer for the shape of a PF3 molecule correct? Explain c. Why is it important to draw the Lewis structure for a molecule before identifying the shape of the molecule? 3. Draw the Lewis structure of ozone, O3. Describe why ozone has a bent shape instead of a linear shape.