June 2019 Chemistry Regents #74-77

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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 Questions 52-54 Questions 55-57 Questions 58-61 Questions 62-65 Questions 66-69 Questions 70-73 Questions 74-77 Questions 78-80 Questions 81-85  

 

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Question 74-77

 

 

Base your answers to questions 74-77

Ethyl ethanoate is used as a solvent for varnishes and in the manufacturing of artificial leather. The formula below represents a molecule of ethyl ethanoate.

74.Identify the element in ethyl ethanoate that makes it an organic compound.

Answer--> carbon

75.  Write the empirical formula for this compound.

Answer--> C2H4O...the order didn't matter

76.  Write the name of the class of organic compounds to which this compound belongs.

Answer-->  ester

77. Determine the number of electrons shared in the bond between a hydrogen atom and a carbon atom in the molecule.
Answer--> 2 electrons or 1 pair of electrons

F halides

see Table F halides

on to Questions 78-80

 

 

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 Questions 52-54 Questions 55-57 Questions 58-61 Questions 62-65 Questions 66-69 Questions 70-73 Questions 74-77 Questions 78-80 Questions 81-85  

 

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