June 2017 Chemistry Regents #51-53

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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

Question 51-53 Questions 54-57 Questions 58-60 Questions 61-63 Questions 64-65 Questions 66-68 Questions 69-71 Questions 72-76  Questions 77-80  Questions 81-82  Questions 83-85 

 

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Question 51-53

 

 

Base your answers to questions 51 through 53 on the information below and on your knowledge of chemistry. The elements in Group 17 are called halogens. The word "halogen" is derived from Greek and means "salt former.”

51 State the trend in electronegativity for the halogens as these elements are considered in order of increasing atomic number [1]

Answer-->As atomic number increase, electronegativity decrease

52 Identify the type of chemical bond that forms when potassium reacts with bromine to form a salt. [1]

Answer-->     IONIC

53 Based on Table F, identify one ion that reacts with iodide ions in an aqueous solution to form an insoluble compound.[1]

Answer-->  Ag+ or Pb2+  or Hg22+

see Table F halides

on to Questions 54-57

 

 

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

Question 51-53 Questions 54-57 Questions 58-60 Questions 61-63 Questions 64-65 Questions 66-68 Questions 69-71 Questions 72-76  Questions 77-80  Questions 81-82  Questions 83-85 

 

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