AP Chemistry ChAPter 2 Quiz

10 Questions
AP Chemistry Quizzes & Trivia
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Questions and Answers
  • 1. 
    Which of the following statements from Dalton’s atomic theory is no longer true, according to modern atomic theory?
    • A. 

      Elements are made up of tiny particles called atoms.

    • B. 

      Atoms are not created or destroyed in chemical reactions.

    • C. 

      All atoms of a given element are identical.

    • D. 

      Atoms are indivisible in chemical reactions.

    • E. 

      All of these statements are true according to modern atomic theory.

  • 2. 
    Which one of the following statements about atomic structure is false?
    • A. 

      An atom is mostly empty space.

    • B. 

      Almost all of the mass of the atom is concentrated in the nucleus.

    • C. 

      The protons and neutrons in the nucleus are very tightly packed.

    • D. 

      The number of protons and neutrons is always the same in the neutral atom.

    • E. 

      All of the statements given are true.

  • 3. 
    The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium-185 has in its nucleus
    • A. 

      75 protons, 75 neutrons.

    • B. 

      75 protons, 130 neutrons.

    • C. 

      130 protons, 75 neutrons.

    • D. 

      75 protons, 110 neutrons.

    • E. 

      Not enough information is given.

  • 4. 
    All of the following are true except:
    • A. 

      Ions are formed by adding electrons to a neutral atom.

    • B. 

      Ions are formed by changing the number of protons in an atom’s nucleus.

    • C. 

      Ions are formed by removing electrons from a neutral atom.

    • D. 

      An ion has a positive or negative charge.

    • E. 

      Metals tend to form positive ions.

  • 5. 
    Which of the following are incorrectly paired?
    • A. 

      K, alkali metal

    • B. 

      Ba, alkaline earth metal

    • C. 

      O, halogen

    • D. 

      Ne, noble gas

    • E. 

      Ni, transition metal

  • 6. 
    Which of the following is incorrectly named?
    • A. 

      Pb(NO3)2, lead (II) nitrate

    • B. 

      NH4ClO4, ammonium perchlorate

    • C. 

      PO4 3-, phosphate ion

    • D. 

      Mg(OH)2, magnesium hydroxide

    • E. 

      NO3 -, nitrite ion

  • 7. 
    Write the names of the following compounds in order: (hint: use all lower case letters and capitals in parenthesis for roman numerals)
    1. FeSO4
    2. NaC2H3O2
    3. KNO2
    4. Ca(OH)2
    5. NiCO3
  • 8. 
  • 9. 
    Identify the periodic groups associated with Alkali metals, Alkaline earth metals, Halogens, Noble gases and transition metals, in order.  (use group numbers 1 through 18 and a series of groups with a dash, ex: 1-3)
  • 10. 
    Write the chemical formulas for the following compounds or ions, in order.  Place subscripts, parenthesis, and charges where they are needed.  Do not 'lower' the subscripts and leave a space between the ion and its charge.  example:  phosphate ion= PO4 3-, copper (II) nitrate = Cu(NO3)2, chloride ion = Cl -
    1. nitrate ion
    2. aluminum oxide
    3. ammonium ion
    4. perchloric acid
    5. copper (II) bromide