August 2017 Chemistry Regents #55-58

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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 51-52 Questions 53-54 Questions 55-58 Questions 59-60 Questions 61-65 Questions 66-68 Questions 69-72 Questions 73-77  Questions 78-81  Questions 82-85

 

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Questions 55-58

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Base your answers to questions 55 through 58 on the information below and on your knowledge of chemistry.

The table below contains selected information about chlorine and two compounds containing chlorine. One piece of information is missing for each of the substances in the table.

55 Identify the phase of the chlorine at STP. [1]

Answer-->gas

56 Determine the molar mass for calcium chloride. [1]

Answer--> 111 g/mol

57 The liquid compound has an empirical formula of CHCl. Write the molecular formula for this compound. [1]

Answer-->  C2H2Cl2

58 Explain, in terms of electrons, why the compound containing calcium and chlorine is classified as an ionic compound. [1]

Answer--> Electrons were transferred.

 

Next-->Questions 59-60

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 51-52 Questions 53-54 Questions 55-58 Questions 59-60 Questions 61-65 Questions 66-68 Questions 69-72 Questions 73-77  Questions 78-81  Questions 82-85

 

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