Pre-test Chemistry B Quiz Block 4

10 Questions | Total Attempts: 73

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Chemistry Quizzes & Trivia

Pre-Test Chemistry Quiz  block 4Please take this quiz before you start this course. You will receive 10 pts for doing this pre-test, but do your best for this let's me know where to help you. You do not need to k-mail the certificate. Please wait 3 to  5 school days before your score is put into the grade book. This quiz is  NOT linked to the LMS, so I have to manually post your score. Thank you, Mrs. L.  


Questions and Answers
  • 1. 
    Which of the following best describes the difference between a scientific hypothesis and a scientific theory?     (AZ HS Science S1:C1:PO1)
    • A. 

      Once a scientific hypothesis has been proven, it becomes known as a theory.

    • B. 

      A scientific hypothesis must be testable, while a theory does not have to be tested.

    • C. 

      A scientific hypothesis is a testable assumption, while a theory is a well-verified idea used to explain a broad range of phenomena.

    • D. 

      Only a scientific hypothesis is subject to scrutiny, while a theory does not change.

  • 2. 
    Which of the following institutions employs scientists? (AZ HS Science S2:C1:PO3)
    • A. 

      Hospitals

    • B. 

      Universities

    • C. 

      Corporations

    • D. 

      All of the above

  • 3. 
    If a piece of laboratory glassware breaks, a student should immediately: (AZ HS Science S1:C2:PO1)
    • A. 

      Notify his/her lab partner and then begin clean-up.

    • B. 

      Notify his/her teacher and students nearby of broken glassware, then follow instructions about proper clean-up and disposal of broken glassware.

    • C. 

      Grab paper towels and begin cleaning up the mess.

    • D. 

      Wait until after the laboratory session is over before picking up the glassware; there are less people around so it is safer.

  • 4. 
    To accurately measure the volume of a typical liquid in a graduated cylinder, what should you do? (AZ HS Science S1:C2:PO3)
    • A. 

      Look at the bottom part of the meniscus

    • B. 

      Look at the top part of the meniscus

    • C. 

      Average the top and bottom parts of the meniscus

    • D. 

      Ignore the meniscus and determine which mL line the liquid is closet to

  • 5. 
    In the formation of a solution, the solute is: (AZ HS Science S5:C1:PO4)
    • A. 

      The substance which does the dissolving

    • B. 

      Always the liquid substance

    • C. 

      The substance that is being dissolved

    • D. 

      Always the solid substance

  • 6. 
    Which of the following is an example of a physical change? (AZ HS Science S5:C1:PO1)
    • A. 

      Rusting bicycle chain

    • B. 

      Melting butter

    • C. 

      Fireworks exploding

    • D. 

      Baking a cake

  • 7. 
    In his experiments, JJ Thomson passed electrical current through two positively charged plates at opposite ends of a cathode ray tube from which all air had been removed. What did he discover? (AZ HS Science S5:C1:PO7)
    • A. 

      The neutron

    • B. 

      The electron

    • C. 

      The nucleus

    • D. 

      The proton

  • 8. 
    If you have a 2.50 mole sample of a substance how many representative particles does this represent? (AZ HS Science S5:C4:PO5)
    • A. 

      2.50 x 10^23

    • B. 

      6.02 x 10^24

    • C. 

      1.51 x 10^24

    • D. 

      2.50 x 10^24

  • 9. 
    Which of the following properties of liquid water are caused by water’s intermolecular forces (hydrogen bonds)? (AZ HS Science S5:C4:PO12)
    • A. 

      Surface tension

    • B. 

      Capillary action

    • C. 

      High specific heat

    • D. 

      All of the above

  • 10. 
    Which of the following describes an endothermic reaction? (AZ HS Science S5:C4:PO10)
    • A. 

      Thermal energy is released by the system.

    • B. 

      Thermal energy is absorbed by the surroundings.

    • C. 

      Thermal energy is not transferred.

    • D. 

      The initial and final temperatures of the system remains the same.

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