Chemical Research Nine Weeks Exam

25 Questions | Total Attempts: 131

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Chemical Reaction Quizzes & Trivia

Multiple Choice Exam


Questions and Answers
  • 1. 
    Which of the following contains only one type of atom?
    • A. 

      A. compound

    • B. 

      B. mixture

    • C. 

      C. element

    • D. 

      D. solution

  • 2. 
    Which of the following has a positive electric charge?
    • A. 

      A. electron

    • B. 

      B. proton

    • C. 

      C. neutron

    • D. 

      D. atom

  • 3. 
    In an atom, what forms a cloud around the nucleus?
    • A. 

      A. electrons

    • B. 

      B. protons

    • C. 

      C. nertrons

    • D. 

      D. positively charged particles

  • 4. 
    A carbon atom has a mass number of 12.  how many protons and how many neutrons does it have?
    • A. 

      D. 6,6

    • B. 

      C. 12,12

    • C. 

      B. 6,12

    • D. 

      A. 12,6

  • 5. 
    On Earth, oxygen usually exists as which of the following?
    • A. 

      A. solid

    • B. 

      B. gas

    • C. 

      C. liquid

    • D. 

      D. plasma

  • 6. 
    Which of the following isotopes has seven neutrons?
    • A. 

      A. boron-12

    • B. 

      B. nitrogen-12

    • C. 

      C. carbon-14

    • D. 

      D. hydrogen-2

  • 7. 
    Which type of bond occurs because of the polar molecules of water?
    • A. 

      A. ionic

    • B. 

      B. covalent

    • C. 

      C. metallic

    • D. 

      D. hydrogen

  • 8. 
    Which of the following are electrically charged?
    • A. 

      A. molecule

    • B. 

      B. solution

    • C. 

      C. isotope

    • D. 

      D. ion

  • 9. 
    What type of property is the color of your clothes?
    • A. 

      A. chemical property

    • B. 

      B. physical property

    • C. 

      C. isotopic property

    • D. 

      D. molecular property

  • 10. 
    Which of the following is not a physical property of water?
    • A. 

      A. transparent

    • B. 

      B. colorless

    • C. 

      C. higher density than ice

    • D. 

      D. changes to hydrogen and oxygen when electricity passes through it

  • 11. 
    What changes when the mass of an object increases while volume stays the same?
    • A. 

      A. color

    • B. 

      B. length

    • C. 

      C. density

    • D. 

      D. height

  • 12. 
    What is the volume of a brick that is 20 cm long, 10 cm wide, and 3 cm high?
    • A. 

      A. 33 cm3

    • B. 

      B. 90 cm3

    • C. 

      C. 600 cm 3

    • D. 

      D. 1,200 cm 3

  • 13. 
    What is the density of an object with a mass of 50 g and a volume of 5 cm3?
    • A. 

      A. 45 g/cm3

    • B. 

      B. 55 g/cm3

    • C. 

      C. 10 g/cm3

    • D. 

      D. 250 g/cm3

  • 14. 
    What word best describes the type of materials that attract iron?
    • A. 

      A. magnetic

    • B. 

      B. chemical

    • C. 

      C. mass

    • D. 

      D. physical

  • 15. 
    Which is an example of a chemical property?
    • A. 

      A. color

    • B. 

      B. mass

    • C. 

      C. density

    • D. 

      D. ability to burn

  • 16. 
    Which is an example of a physical change?
    • A. 

      A. metal rusting

    • B. 

      B. silver tarnishing

    • C. 

      C. water boiling

    • D. 

      D. paper burning

  • 17. 
    • A. 

      A. composition changes

    • B. 

      B. composition stays the same

    • C. 

      C. form stays the same

    • D. 

      D. mass is lost

  • 18. 
    Which is an example of a chemical change?
    • A. 

      A. water freezes

    • B. 

      B. wood is carved

    • C. 

      C. bread is baked

    • D. 

      D. wire is bent

  • 19. 
    • A. 

      A. change in color

    • B. 

      B. change in shape

    • C. 

      C. change in energy

    • D. 

      D. change in odor

  • 20. 
    • A. 

      A. density

    • B. 

      B. shape

    • C. 

      C. mass

    • D. 

      D. arrangements of particles

  • 21. 
    What is the material through which mechanical waves travel?
    • A. 

      A. charged particles

    • B. 

      B. space

    • C. 

      C. a vacuum

    • D. 

      D. a medium

  • 22. 
    • A. 

      A. speed

    • B. 

      B. amplitude

    • C. 

      C. energy

    • D. 

      D. matter

  • 23. 
    What are the lowest points on a transverse wave called?
    • A. 

      A. crests

    • B. 

      B. troughs

    • C. 

      C. compressions

    • D. 

      D. rarefactions

  • 24. 
    What determines the pitch of a sound wave?
    • A. 

      A. amplitude

    • B. 

      B. frequency

    • C. 

      C. speed

    • D. 

      D. refraction

  • 25. 
    What is the distance between adjacent wave compressions?
    • A. 

      A. one wavelength

    • B. 

      B. 1 km

    • C. 

      C. 1 m/s

    • D. 

      D. 1 Hz