August 2016 Chemistry Regents #56-59

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Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-74  Questions 75-76  Questions 77-78  Questions 79-80  Questions 81-82  Questions 83-85

 

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Questions 56-59

 

 

Base your answers to questions 56 and 59 on the information below and on your knowledge of chemistry.

The equation below represents a reaction between propene and hydrogen bromide. C

yclopropane, an isomer of propene, has a boiling point of 33C at standard pressure and is represented by the formula below.

56 Explain why this reaction can be classified as a synthesis reaction. [1]

Answer-->One compound is formed from two compounds.

57 Identify the class of organic compounds to which the product of this reaction belongs. [1]

Answer-->halide

58 Explain, in terms of molecular formulas and structural formulas, why cyclopropane is an isomer of propene. [1]

Answer--> same formula, different structure

59 Convert the boiling point of cyclopropane at standard pressure to kelvins. [1]

Answer--> 240.K

on to Questions 60-61

 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-74  Questions 75-76  Questions 77-78  Questions 79-80  Questions 81-82  Questions 83-85

 

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