30. Lithium metal reacts with water to form aqueous lithium hydroxide, LiOH, and hydrogen gas. Write a balanced chemical equation for the reaction. 31. Iron(III) nitrate reacts with potassium sulfide to form aqueous potassium nitrate and solid iron(III) sulfide. Write a balanced chemical equation for the reaction. USING SCIENCE SKILLS Figure 6-2 32. Using Tables and Graphs Write a description to place in box (2) in Figure 6-2. 33. Using Tables and Graphs What compound name belongs in box (1) in Figure 6-2? 34. What type of bond belongs in box (3) in Figure 6-2? Classifying 35. Classifying What type of bond belongs in box (4) in Figure 6-2? 36. Comparing and Contrasting How are metallic bonds and ionic bonds similar? How are they different? Substances Compound Remarks A potassium, K, and KI Iodine is a member of the halogen group; potassium is an alkali metal. iodine, I B carbon, C, and CO2 Carbon and oxygen are both nonmetals. oxygen, O C Al, O, and H Al(OH)3 OH- (hydroxide) is a polyatomic ion. Figure 6-3 37. Applying Concepts How does the saying attract” apply to the bonding in the compound shown in row A of Figure 6-3? “Opposites 38. Comparing and Contrasting What kind of bond forms between the elements in row B of Figure 6-3? How is this type of bond different from the type of bond that forms between the elements in row A? 39. Comparing and Contrasting How are the compounds in rows A and C in Figure 6-3 similar? How are they different? 40. Inferring A hydroxide ion has a charge of 1–. What is the charge on the aluminum ion? Explain your answer. Use Figure 6-3 to answer this question. 41. Predicting Suppose you could substitute sulfur, S, for iodine in row A in Figure 6-3. What would the formula for the resulting compound be? Explain your answer.
30. Lithium metal reacts with water to form aqueous lithium hydroxide, LiOH, and hydrogen gas. Write a balanced chemical equation for the reaction. 31. Iron(III) nitrate reacts with potassium sulfide to form aqueous potassium nitrate and solid iron(III) sulfide. Write a balanced chemical equation for the reaction. USING SCIENCE SKILLS Figure 6-2 32. Using Tables and Graphs Write a description to place in box (2) in Figure 6-2. 33. Using Tables and Graphs What compound name belongs in box (1) in Figure 6-2? 34. Classifying What type of bond belongs in box (3) in Figure 6-2? 35. Classifying What type of bond belongs in box (4) in Figure 6-2? 36. Comparing and Contrasting How are metallic bonds and ionic bonds similar? How are they different? Substances Compound Remarks A potassium, K, and iodine, I KI Iodine is a member of the halogen group; potassium is an alkali metal. B carbon, C, and oxygen, O CO2 Carbon and oxygen are both nonmetals. C Al, O, and H Al(OH)3 OH- (hydroxide) is a polyatomic ion. Figure 6-3 37. Applying Concepts How does the saying “Opposites attract” apply to the bonding in the compound shown in row A of Figure 6-3? 38. Comparing and Contrasting What kind of bond forms between the elements in row B of Figure 6-3? How is this type of bond different from the type of bond that forms between the elements in row A? 39. Comparing and Contrasting How are the compounds in rows A and C in Figure 6-3 similar? How are they different? 40. Inferring A hydroxide ion has a charge of 1–. What is the charge on the aluminum ion? Explain your answer. Use Figure 6-3 to answer this question. 41. Predicting Suppose you could substitute sulfur, S, for iodine in row A in Figure 6-3. What would the formula for the resulting compound be? Explain your answer.
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