Physical Science Module 4

15 Questions | Total Attempts: 303

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Physical Science Module Quizzes & Trivia

Questions and Answers
  • 1. 
    The use of electricity to break a molecule down into smaller units refers to:
    • A. 

      Electrodes

    • B. 

      Experimental error

    • C. 

      Electrolysis

    • D. 

      Cold Fusion

  • 2. 
    A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared refers to a:
    • A. 

      Polarity

    • B. 

      Polar Molecule

    • C. 

      Nonpolar Molecule

  • 3. 
    A liquid substance capable of dissolving other substances refers to a:
    • A. 

      Solvent

    • B. 

      Solute

    • C. 

      Solution

    • D. 

      Compound

  • 4. 
    A substance that is dissolved in a solvent is a:
    • A. 

      Compound

    • B. 

      Solution

    • C. 

      Molecule

    • D. 

      Solute

  • 5. 
    The phenomenon that occurs when individual molecules are so strongly attracted to each other that they tend to stay together, even when exposed to tension refers to:
    • A. 

      Magnetism

    • B. 

      Elasticity

    • C. 

      Cohesion

    • D. 

      Polar Bonding

  • 6. 
    Water that has certain dissolved ions in it -- predominately calcium and magnesium ions refers to:
    • A. 

      Hard Water

    • B. 

      Sulfur Water

    • C. 

      Soft Water

    • D. 

      Chlorinated Water

  • 7. 
    The chemical formula for water is H2O.
    • A. 

      True

    • B. 

      False

  • 8. 
    Some metals tend to absorb oxygen but not hydrogen.  Suppose such a metal was covering the battery in an electrolysis experiment like Experiment 4.1.  Which is the more likely erroneous result the experiment would yield for the chemical formula of water:  HO2 or H4O?
    • A. 
    • B. 
  • 9. 
    What is the reason that water is a liquid at room temperature when all other chemically similar substances are gases at room temperature?
    • A. 

      Chemical Bonding

    • B. 

      Heat Bonding

    • C. 

      Hydrogen Bonding

  • 10. 
    Carbon dioxide (CO2) is one of the gases that we exhale when we breathe.  Carbon monoxide (CO) is a poisonous gas associated with burning under conditions of low oxygen.  How many atoms are in one molecule of CO2?  How many atoms are in one molecule of CO?
    • A. 

      has 2 atoms and CO has 1 atom

    • B. 

      has 3 atoms and CO has 2 atoms

    • C. 

      has 4 atoms and CO has 2 atoms

  • 11. 
    An important component of gasoline is octane, which is composed of molecules that have eight carbon atoms (C) and eighteen hydrogen atoms (H).  What is the chemical formula of octane?
    • A. 
    • B. 
    • C. 
  • 12. 
    Water molecules are ____________ because both the oxygen atoms (which make it slightly negative) and the hydrogen atoms (which make it slightly positive) are fighting over the electrons they are supposed to be sharing.
    • A. 

      Bipolar

    • B. 

      Polar

    • C. 

      Nonpolar

  • 13. 
    If a substance does not dissolve in water, it is most likely:
    • A. 

      Ionic

    • B. 

      Polar

    • C. 

      Nonpolar

  • 14. 
    Hard water is the result of:
    • A. 

      Calcium-containing compounds in the region from which the water is taken.

    • B. 

      A city's water treatment process.

    • C. 

      The crystallization process which occurs at 32 F at sea level.

  • 15. 
    If a substance dissolves in water, it will also dissolve in vegetable oil, a nonpolar substance.
    • A. 

      True

    • B. 

      False

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