June 2011 Chemistry Regents #69-70

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50 Question 51 Questions 52-54 Questions 55-59 Questions 60-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-70 Questions 71-73 Questions 74-76 Questions 77-79 Questions 80-82 Questions 83-85

Questions

Base your answers to questions 69 through 70  on the information below. Natural gas is a mixture that includes butane, ethane, methane, and propane. Differences in boiling points can be used to separate the components of natural gas. The boiling points at standard pressure for these components are listed in the table below. 69. Identify a process used to separate the components of natural gas. [1] HIGHLIGHT TO SEE THE ANSWER fractional distillation  or distillation 70. List the four components of natural gas in order of increasing strength of intermolecular forces. [1] HIGHLIGHT TO SEE THE ANSWER weakest IMFs Methane <ethane <propane <butane   strongest IMFs   on to Questions 71-73

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50 Question 51 Questions 52-54Questions 55-59 Questions 60-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-70 Questions 71-73 Questions 74-76 Questions 77-79 Questions 80-82 Questions 83-85

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