Quarterly Assessment 1-regents Chemistry

14 Questions | Total Attempts: 121

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Quarterly Assessment 1-regents Chemistry

NYS Regent Curriculum, mp 1.


Questions and Answers
  • 1. 
    WHich of the following can not be decomposed into simpler substances?
    • A. 

      Elements

    • B. 

      Compounds

    • C. 

      Solutions

    • D. 

      Mixtures

  • 2. 
    The particle diagram below represents a sample of matter.  Which best describes the composition of the sample?
    • A. 

      A single element

    • B. 

      A mixture of elements

    • C. 

      A single compound

    • D. 

      A mixture of compounds

  • 3. 
    Which particle diagram below best represents a single element?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 4. 
    A compound differs from a mixture in that a compound always has a
    • A. 

      Minimum of three components

    • B. 

      Heterogeneous composition

    • C. 

      Homogeneous composition

    • D. 

      Maximum of two components

  • 5. 
    What process is used to separate a mixture of liquids based on differences in boiling points?
    • A. 

      Distillation

    • B. 

      Filtration

    • C. 

      Titration

    • D. 

      Chromatography

  • 6. 
    A student observed the following reaction:   After the products were filtered, which substance remained on the filter paper?
    • A. 

      Substance A

    • B. 

      Substance B

    • C. 

      Substance C

    • D. 

      Substance D

  • 7. 
    Which is considered to be a chemical change?
    • A. 

      Evaporating of rain water

    • B. 

      Crushing ice

    • C. 

      Decomposition of water into hydrogen and oxygen

    • D. 

      Dissolving NaCl in water

  • 8. 
    Which pahse change is endothermic?
    • A. 

      Gas to liquid

    • B. 

      Liquid to solid

    • C. 

      Liquid to gas

    • D. 

      Gas to solid

  • 9. 
    Energy of position or stored energy is also called:
    • A. 

      Chemical energy

    • B. 

      Potential energy

    • C. 

      Kinetic energy

    • D. 

      Activation energy

  • 10. 
    What unit is used to express the amount of energy absorbed or released during a chemical reaction?
    • A. 

      Degree

    • B. 

      Gram

    • C. 

      Torr

    • D. 

      Joule

  • 11. 
    What Kelvin temperature is the same as -13C?
    • A. 

      260 K

    • B. 

      747 K

    • C. 

      286 K

    • D. 

      773 K

  • 12. 
    As the temperature of a gas in increased, the average kinetic energy of its molecules
    • A. 

      Increases

    • B. 

      Decreases

    • C. 

      Remains the same

  • 13. 
    Which beaker has the lowest kinetic energy?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 14. 
    The graph below represents the uniform cooling of a substance starting as a gas at 160 C.  At what temperature does a phase change occure for this substance?
    • A. 

      0*C

    • B. 

      40*C

    • C. 

      80*C

    • D. 

      140*C