Chemical Bonds and Interactions in Water
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Questions and Answers

What type of bond is made up of 2 shared electrons, with each electron coming from a different atom?

  • Van der Waals interaction
  • Ionic bond
  • Hydrogen bond
  • Covalent bond (correct)
  • Which type of molecules dissolve readily in water due to being polar or ionic?

  • Covalent molecules (correct)
  • Van der Waals molecules
  • Hydrophobic molecules
  • Nonpolar molecules
  • What is the primary reason for nonpolar molecules being forced together in water?

  • Van der Waals attractions (correct)
  • Ionic interactions
  • Hydrogen bonding
  • Covalent bonds
  • Which group functions as a weak acid by partially dissociating and releasing hydrogen ions?

    <p>Carboxyl group (-COOH)</p> Signup and view all the answers

    What is the unit used to define pH, which represents the negative logarithm of hydrogen ion concentration?

    <p>pH scale</p> Signup and view all the answers

    Which type of bond is the strongest according to the text, with a range of 50-110 Kcal?

    <p>Covalent bond</p> Signup and view all the answers

    What type of molecules do not dissolve in water and are described as hydrophobic?

    <p>Nonpolar molecules</p> Signup and view all the answers

    Which force describes the attraction of nonpolar molecules to each other due to transient dipoles?

    <p>Van der Waals force</p> Signup and view all the answers

    What is the measurement unit for the concentration of acids and bases?

    <p>Moles per liter</p> Signup and view all the answers

    Which group is considered a weak acid and is of significant importance in biology?

    <p>Carboxyl group</p> Signup and view all the answers

    What happens to weak acids like the carboxyl group in solution?

    <p>Partially dissociate reversibly</p> Signup and view all the answers

    What do acids release/donate in solution?

    <p>$H^+$ ions (protons)</p> Signup and view all the answers

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