Ehs Honors Chemistry Quiz 1

10 Questions | Total Attempts: 231

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Chemistry Honors Quizzes & Trivia

Quiz over experimental design, significant figures, conversions, scientific notation and percent error


Questions and Answers
  • 1. 
    How many significant figures are in 3.04?
    • A. 

      2

    • B. 

      3

    • C. 

      1

    • D. 

      What are significant figures?

  • 2. 
    Convert 402 m into Km.
    • A. 

      .402 km

    • B. 

      402000 km

    • C. 

      4.02 Km

    • D. 

      40.2 Km

  • 3. 
    Mrs. McCarthy wants to test what the freezing point of a 1% salt water solution is. She fills a vial with 10 mL of tap water and another vial with 10 mL of the 1% salt water solution. She then puts it in the freezer  with a thermometer in each vial. She records the temperature every 2 minutes until it freezes. What is the independent variable in this experiment?
    • A. 

      The thermometer

    • B. 

      The time it took for the salt water to freeze

    • C. 

      The regular water

    • D. 

      The types of water

  • 4. 
    Mrs. McCarthy wants to test what the freezing point of a 1% salt water solution is. She fills a vial with 10 mL of tap water and another vial with 10 mL of the 1% salt water solution. She then puts it in the freezer  with a thermometer in each vial. She records the temperature every 2 minutes until it freezes. What is the dependent variable in this experiment?
    • A. 

      The thermometer

    • B. 

      The time it takes for the salt water to freeze

    • C. 

      The regular water

    • D. 

      The types of water

  • 5. 
    Mrs. McCarthy wants to test what the freezing point of a 1% salt water solution is. She fills a vial with 10 mL of tap water and another vial with 10 mL of the 1% salt water solution. She then puts it in the freezer  with a thermometer in each vial. She records the temperature every 2 minutes until it freezes. What is the control in this experiment?
    • A. 

      The thermometer

    • B. 

      The time it took for the salt water to freeze

    • C. 

      The regular tap water

    • D. 

      The types of water

  • 6. 
    What is 3.22 x 103 in long form?
    • A. 

      .322

    • B. 

      32.2

    • C. 

      322

    • D. 

      3220

  • 7. 
    How many significant figures are in 0.00345
    • A. 

      6

    • B. 

      5

    • C. 

      3

    • D. 

      4

  • 8. 
    Convert 250 Km into mm.
    • A. 

      .250 mm

    • B. 

      .000000250 mm

    • C. 

      25000mm

    • D. 

      250000000 mm

  • 9. 
    A accepted measurement of a length of wood is 3.5 m. Your measurement of a piece of wood is 2.5 m. What is your percent error?
    • A. 

      28.6%

    • B. 

      71.4%

    • C. 

      35%

    • D. 

      25%

  • 10. 
    Using significant figures, what is the answer to the following problem?3.46 x 6.2 x 4 x 5.035
    • A. 

      432

    • B. 

      400

    • C. 

      430

    • D. 

      432.04

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