Practice Quiz

DAT Review Questions (Dental Admissions) - Question List

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41. Which of the following elements displays bonding characterized by a delocalized “sea of electrons?”
  1. Fluorine
  2. Nitrogen
  3. Copper
  4. Sulfur
  5. Argon
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42. Which of the following metals reacts explosively when placed in water?
  1. Manganese
  2. Silver
  3. Zinc
  4. Sodium
  5. Chromium
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43. A 40.0 gram sample of a radioactive element decays to 5.0 grams in 15 hours. What is the half-life of this element?
  1. 3 hours
  2. 2 hours
  3. 6 hours
  4. 7.5 hours
  5. 5 hours
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44. Which of the following species is classified as an electrolyte?
  1. CH4
  2. C6H12O6
  3. N2
  4. Na+
  5. O3
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45. Given a right triangle (ABC) with side a = 30.30 ft and side b = 20.20 ft, what is the length of the hypotenuse c?
  1. 3.64 ft
  2. 36.41 ft
  3. 364.16 ft
  4. 3641.62 ft
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