June 2016  Chemistry Regents #41-45

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41 What is the total amount of heat required to completely melt 347 grams of ice at its melting point?

(1) 334 J      (3) 116 000 J

(2) 1450 J    (4) 784 000 J

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42 As the temperature of a reaction increases, it is expected that the reacting particles collide

(1) more often and with greater force

(2) more often and with less force

(3) less often and with greater force

(4) less often and with less force
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43 Given the formula representing a compound:

What is an IUPAC name for this compound?

(1) ethyl propanoate (3) 3-hexanone

(2) propyl ethanoate (4) 4-hexanone

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44 A voltaic cell converts chemical energy to

(1) electrical energy with an external power source

(2) nuclear energy with an external power source

(3) electrical energy without an external power source

(4) nuclear energy without an external power source

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45 Which acid and base react to form water and sodium sulfate?

(1) sulfuric acid and sodium hydroxide

(2) sulfuric acid and potassium hydroxide

(3) sulfurous acid and sodium hydroxide

(4) sulfurous acid and potassium hydroxide

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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 51-54 Questions 55-57 Questions 58-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-74  Questions 75-76  Questions 77-78  Questions 79-80  Questions 81-82  Questions 83-85

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