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Physical Setting / Chemistry - New York Regents January 2012 Exam

   Directions (1–30): For each statement or question, write in your answer booklet the number of the word or
expression that, of those given, best completes the statement or answers the question. Some questions may
require the use of the Reference Tables for Physical Setting/Chemistry.

Formats Worksheet / Test Paper Quiz Review
: Multiple choice

Your Performance  

1.

1 What is the number of electrons in a completely
  filled second shell of an atom?
  (1) 32                     (3) 18
  (2) 2                      (4) 8

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  Half-n-half Clue
 

2.

2 What is the number of electrons in an atom that
  has 3 protons and 4 neutrons?
  (1) 1                    (3) 3
  (2) 7                    (4) 4

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  4

  Half-n-half Clue
 

3.

3 As a result of the gold foil experiment, it was
  concluded that an atom
  (1) contains protons, neutrons, and electrons
  (2) contains a small, dense nucleus
  (3) has positrons and orbitals
  (4) is a hard, indivisible sphere

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4.

4 Which statement describes the distribution of
  charge in an atom?
  (1) A neutral nucleus is surrounded by one or
      more negatively charged electrons.
  (2) A neutral nucleus is surrounded by one or
      more positively charged electrons.
  (3) A positively charged nucleus is surrounded
      by one or more negatively charged electrons.
  (4) A positively charged nucleus is surrounded
      by one or more positively charged electrons.

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5.

5 Which atom in the ground state has an outer-
  most electron with the most energy?
  (1) Cs                  (3) Li
  (2) K                   (4) Na

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  Half-n-half Clue
 

6.

6 Which particle has the least mass?
  (1) alpha particle       (3) neutron
  (2) beta particle        (4) proton

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7.

7 The elements in Group 2 are classified as
  (1) metals             (3) nonmetals
  (2) metalloids         (4) noble gases

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8.

8 Which list includes elements with the most
  similar chemical properties?
  (1) Br, Ga, Hg           (3) O, S, Se
  (2) Cr, Pb, Xe           (4) N, O, F

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9.

9 The notation for the nuclide 13755Cs
                                
  gives information about
  (1) mass number, only
  (2) atomic number, only
  (3) both mass number and atomic number
  (4) neither mass number nor atomic number

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10.

10 Which pair represents two forms of an element
   in the same phase at STP but with different
   structures and different properties?
   (1) I2(s) and I2(g)       (3) H2(g) and Hg(g)
   (2) O2(g) and O3(g)       (4) H2O(s) and H2O(ℓ)

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11.

11 The elements on the Periodic Table are
   arranged in order of increasing
   (1) atomic mass          (3) molar mass
   (2) atomic number        (4) oxidation number

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12.

12 What is the IUPAC name for the compound
   ZnO?
   (1) zinc oxide      (3) zinc peroxide
   (2) zinc oxalate    (4) zinc hydroxide

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13.

13 Which atom attains a stable valence electron
   configuration by bonding with another atom?
   (1) neon                (3) helium
   (2) radon               (4) hydrogen

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14.

14 An ionic bond can be formed when one or more
   electrons are
   (1) equally shared by two atoms
   (2) unequally shared by two atoms
   (3) transferred from the nucleus of one atom to
       the nucleus of another atom
   (4) transferred from the valence shell of one
       atom to the valence shell of another atom

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15.

15 Which sample of CO2 has a definite shape and
   a definite volume?
   (1) CO2(aq)           (3) CO2(ℓ)
   (2) CO2(g)            (4) CO2(s)

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16.

16 What occurs in order to break the bond in a
   Cl2 molecule?
   (1) Energy is absorbed.
   (2) Energy is released.
   (3) The molecule creates energy.
   (4) The molecule destroys energy.

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17.

17 A sealed, rigid 1.0-liter cylinder contains He gas
   at STP. An identical sealed cylinder contains
   Ne gas at STP. These two cylinders contain the
   same number of
   (1) atoms                   (3) ions
   (2) electrons               (4) protons

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18.

18 Which statement describes a chemical change?
   (1) Alcohol evaporates.
   (2) Water vapor forms snowflakes.
   (3) Table salt (NaCl) is crushed into powder.
   (4) Glucose (C6H12O6) and oxygen produce
       CO2 and H2O.

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19.

19 Which statement describes the particles of an
   ideal gas according to the kinetic molecular
   theory?
   (1) The gas particles are arranged in a regular
       geometric pattern.
   (2) The gas particles are in random, constant,
       straight-line motion.
   (3) The gas particles are separated by very small
       distances, relative to their sizes.
   (4) The gas particles are strongly attracted to
       each other.

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20.

20 Which sample of matter is classified as a
   substance?
   (1) air             (3) milk
   (2) ammonia         (4) seawater

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21.

21 Which element has the lowest electronegativity
   value?
   (1) F                  (3) Cl
   (2) Fr                 (4) Cr

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22.

22 At standard pressure, CH4 boils at 112 K and
   H2O boils at 373 K. What accounts for the higher
   boiling point of H2O at standard pressure?
   (1) covalent bonding      (3) hydrogen bonding
   (2) ionic bonding         (4) metallic bonding

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23.

23 A mixture of sand and table salt can be separated
   by filtration because the substances in the
   mixture differ in
   (1) boiling point        (3) freezing point
   (2) density at STP       (4) solubility in water

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24.

24 Systems in nature tend to undergo changes
   toward
   (1) lower energy and lower entropy
   (2) lower energy and higher entropy
   (3) higher energy and lower entropy
   (4) higher energy and higher entropy

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25.

25 In the wave-mechanical model of the atom, an
   orbital is the most probable location of
   (1) a proton              (3) a neutron
   (2) a positron            (4) an electron

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26.

26 Functional groups are used to classify
   (1) organic compounds
   (2) inorganic compounds
   (3) heterogeneous mixtures
   (4) homogeneous mixtures

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27.

27 Which class of compounds contains at least one
   element from Group 17 of the Periodic Table?
   (1) aldehyde           (3) ester
   (2) amine              (4) halide

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28.

28 In a propanal molecule, an oxygen atom is
   bonded with a carbon atom. What is the total
   number of pairs of electrons shared between
   these atoms?
   (1) 1                  (3) 3
   (2) 2                  (4) 4

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  Half-n-half Clue
 

29.

29 When a voltaic cell operates, ions move through
   the
   (1) anode                (3) salt bridge
   (2) cathode              (4) external circuit

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30.

30 When dissolved in water, an Arrhenius base
   yields
   (1) hydrogen ions     (3) hydroxide ions
   (2) hydronium ions    (4) oxide ions

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