June 2013 Chemistry Regents #54-56

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Question 51-53 Questions 54-56 Questions 57-59 Questions 60-62 Questions 63-65 Questions 66-69 Questions 70-73 Questions 74-77  Questions 78-80  Questions 81-82  Questions 83-85

 

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Base your answers to questions 54 through 56  on the information below.

The balanced equation below represents a reaction.

O2(g) + energy ==> O(g) + O(g)

54 Identify the type of chemical bond in a molecule of the reactant. [1]

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covalent

double covalent

nonpolar

double

nonpolar covalent

55 In the space in your answer booklet, draw a Lewis electron-dot diagram of one oxygen atom. [1]

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ANSWER

56 Explain, in terms of bonds, why energy is absorbed during this reaction. [1]

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Energy is needed to break the bonds in O2.

on to Questions 57-59

 

 

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Question 51-53 Questions 54-56 Questions 57-59 Questions 60-62 Questions 63-65 Questions 66-69 Questions 70-73 Questions 74-77  Questions 78-80  Questions 81-82  Questions 83-85

 

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