(3) 4. For each of the following, write down the molecular formula, and identify

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(3) 4. For each of the following, write down the molecular formula, and identify as an ionic compound or covalent compound: Calcium chloride methanol carbon tetrachloride (3) 5. Would you expect calcium chloride to be more soluble in methanol or in carbon tetrachloride? Explain your reasoning in terms of the structures and the IMF found in these three compounds. (3) 6. Acetone is soluble in both water and n-hexane. Draw the structure for this molecule, and indicate the part(s) of the molecule responsible for its water solubility. Indicate the part(s) of the molecule responsible for its hexane solubility. Explain how you made this prediction. (3) 7. Water and grease are not miscible in one another (do not mix), but addition of soap to the mixture allows them to mix. What is the molecular structure of a typical soap? Explain why this structure allows this material to act as a “go-between" for water and grease. a typical fat or grease a typical detergent molecule v molecule Na (3) 8. Water has significant IMF, which result in many of its unique properties-high boiling point relative to its molecular weight, high surface tension, strong capillary action. In the space below, draw the molecular structures for six water molecules and show how they might organize themselves due to hydrogen-bonding. Show the H-bonds with dotted lines

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(3) 4. For each of the following, write down the molecular formula, and identify

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