August 2010 Chemistry Regents #57-58

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Base your answers to questions 57 and 58 on the information below.

Heat is added to a sample of liquid water, starting at 80.C, until the entire sample is a gas at 120.C. This process, occurring at standard pressure, is represented by the balanced  equation below.

H2O() + heat ==>H2O(g)

57 In the box in your answer booklet, using the key, draw a particle diagram to represent  at least five molecules of the product of this physical change at 120.C. [2]

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58 On the diagram in your answer booklet, complete the heating curve for this physical change. [1]

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

Questions 51-53 Questions 54-56 Questions 57-58 Questions 59-60 Questions 61-63 Questions 64-66 Questions 67-69 Questions 70-72 Questions 73-74 Questions 75-78 Questions 79-81

 

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