Presentation on theme: "Quiz 9 (2/19/14) 27.If you have an acetate buffer (shown below) and you add a strong acid to the buffer, which way will the reaction shift to maintain."— Presentation transcript:
Quiz 9 (2/19/14) 27.If you have an acetate buffer (shown below) and you add a strong acid to the buffer, which way will the reaction shift to maintain pH levels? (To the left or to the right?) 28. Write out the nuclide symbol for an alpha particle. 4 He The symbol: is used to represent a/an positron. CH 3 COOH(aq) + H 2 O(l) H 3 O + (aq) + CH 3 COO − (aq)
Quiz 10 (2/21/14) 30. The type of nuclear reaction whereby a large nucleus splits into smaller nuclei is called nuclear fission. Fill in the box with the appropriate missing information in each nuclear reaction: P 29 Si + 0 e U + 1 n 95 Br+ 139 La n
Quiz 11 (2/24/14) Fill in the box with the appropriate missing information in this nuclear reaction: Po 210 Pb+ 4 He and 35. Write the nuclide symbols for the two products formed by the beta decay of Sodium Na 0 e + 25 Mg The type of reaction that produces energy in a nuclear power plant is fission.
Quiz 12 (2/26/14) 37. An example of a heteroatom seen in organic molecules is the oxygen, nitrogen… atom. 38. An oxygen atom always has 2 (how many?) bonds and 2 (how many?) lone pairs when it is drawn in a Lewis structure? (Must have both parts correct) 39. What is the value of all bond angles in the following molecule? (There is only one correct answer!)109.5°
Quiz 13 (2/28/14) 40. Alkanes, alkenes, and aromatics are all examples of what general type of organic chemical? Hydrocarbons Is each of the following describing an organic or an inorganic chemical? (Write organic or inorganic for each answer) 41. Typically dissolves in water INORGANIC 42. Formed by covalent bondsORGANIC 43. Typically has a low boiling pointORGANIC
Quiz 14 (3/5/14) 44. The straight chain alkane known as eicosane has 20 carbon atoms in the structure. What is the molecular formula of eicosane? C 20 H Are the following two compounds identical molecules or isomers? 46. and 47. Draw the structures of any two isomers with the molecular formula C 6 H 14 where each has four carbon atoms in the longest chain.(any structure with four C atoms in a chain and 2 side chains of C)
Quiz 16 (3/11/14) 51. What is the molecular formula of a straight-chain alkene with 14 carbon atoms?C 14 H Which of the following has the highest boiling point? Butane, Ethane, Propane 53. Which of the following has the highest boiling point? Octane, Cyclooctane, Cycloheptane