Unit 2 Chemical Reaction Post Test

9 Questions | Total Attempts: 80

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Chemical Reaction Quizzes & Trivia

In chemistry, a reaction is a process that involves the rearranging of the molecular or ionic structures of a substance, as distinct from a change in physical form or a nuclear reaction. What do you know about them?


Questions and Answers
  • 1. 
    Atom comes from the Greek word, atomos. What does it mean?
    • A. 

      Really small

    • B. 

      Unable to be cut

    • C. 

      Matter

  • 2. 
    What are the three subatomic particles that make up atoms?
    • A. 

      Protons

    • B. 

      Hydrogen

    • C. 

      Electrons

    • D. 

      Neutrons

    • E. 

      Carbon

  • 3. 
    What charge do protons have?
    • A. 

      Positive

    • B. 

      Neutral / No charge

    • C. 

      Negative

  • 4. 
    What charge do neutrons have?
    • A. 

      Positive

    • B. 

      Neutral / No charge

    • C. 

      Negative

  • 5. 
    What charge do electrons have?
    • A. 

      Positive

    • B. 

      Neutral / No charge

    • C. 

      Negative

  • 6. 
    Which two make up the nucleus in an atom?
    • A. 

      Protons

    • B. 

      Neutrons

    • C. 

      Electrons

  • 7. 
    Which two have the same mass?
    • A. 

      Protons

    • B. 

      Neutrons

    • C. 

      Electrons

  • 8. 
    Electrons are...
    • A. 

      Are in constant motion in the space surrounding the nucleus.

    • B. 

      Are in constant motion inside the nucleas.

  • 9. 
    Atoms have an equal number of _______ and _________.
    • A. 

      Neutrons

    • B. 

      Electrons

    • C. 

      Ions

    • D. 

      Hydrogen

    • E. 

      Protons