January 2011 Chemistry Regents #56-57

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Base your answers to questions 56 to 57on the information below.

56 State evidence that indicates NH3 has stronger intermolecular forces than CF4. [1]

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At standard pressure, NH3 has a higher boiling point than CF4.

The melting point of CF4 is lower.Cu2S

57 In the space in your answer booklet, draw a Lewis electron-dot diagram for CF4. [1]

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Questions 51-53 Questions 54-55 Questions 56-57 Questions 58-59 Questions 60-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-71 Questions 72-74 Questions 75-77 Questions 78-80 Questions 81-83

 
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