Practice Quiz

HOBET Review Questions - Question List

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71. The half-life of 32 grams of a radioactive substance is 6.5 hours. How many grams of the substance remain after 19.5 hours?
  1. 16 grams
  2. 8 grams
  3. 4 grams
  4. 2 grams
  5. 32 grams
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72. 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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73. The autonomic nervous system consists of what two parts?
  1. Sympathetic and parasympathetic
  2. Empathetic and pathetic
  3. Organic and energetic
  4. Generic and spastic
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74. Which of the following best describes eversion of the foot?
  1. Lateral movement of the sole of the foot
  2. Medial movement of the sole of the foot
  3. Lateral rotation of the heel
  4. Medial rotation of the ankle
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75. What is the most likely explanation for leaves wrapped in white construction paper having the lowest amount of chlorophyll?
  1. White paper prevented sunlight from being absorbed by the leaves
  2. White paper prevented carbon dioxide from being taken in by the leaves
  3. White paper prevented oxygen from being released by the leaves
  4. White paper prevented water from being released by the leaves
  5. Black paper prevented heat from being absorbed by the leaves.
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