January 2017 Chemistry Regents #73-77

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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

Question 51-53 Questions 54-55
 Questions 56-57 Questions 58-59 Questions 60-61 Questions 62-65  Questions 66-68  Questions 69-72  Questions 73-77 Questions 78-79 Questions 80-82 Questions 83-85  

 

 

 

 

 #73-77
  

Molecules containing two carbon atoms and a functional group have many home and industrial uses. These compounds can be produced by a variety of reactions, as shown by the equations below.

73 Explain, in terms of bonding, why the hydrocarbon reactant in equation 1 is unsaturated. [1]

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not all single bonds...it has a C to C double bond

74 Draw a structural formula of the ethanal molecule in equation 2. [1]

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75 Explain, in terms of atoms, why CH3CH2OH and CH3CHO are not isomers of each other. [1]

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different molecular formulas

different # of H's

76 Identify the class of organic compounds to which the product in equation 3 belongs. [1]

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organic acid

77 Determine the number of moles of oxygen required to completely react with six moles of CH3CHO in equation 3. [1]

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3
  

on to Questions 78-79

  

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 54-55
 Questions 56-57 Questions 58-59 Questions 60-61 Questions 62-65  Questions 66-68  Questions 69-72  Questions 73-77 Questions 78-79 Questions 80-82 Questions 83-85