AP Chemistry Jeopardy

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AP Chemistry Jeopardy

• 2000

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AP CHEM JEOPARDY
Structure of Matter
States of Matter
Physical Chemistry
Chemical Bonding
Chemical Reactions
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Chemical Bonding 100B
DAILY DOUBLE
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Chem Bond 100
Q - Which atom has a larger atomic radius?
A) Ar C) Cl B) Na D) Li
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Chem Bond 200
Q - How Many Sigma and Pi bond does N2 contain?
A) one sigma, four pi B) two sigma, two pi C)
three sigma D) three pi E) one sigma, two pi
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Chem Bond 400
What are the the three atoms that bond to
hydrogen in hydrogen bonding?
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Nitrogen Oxygen Fluorine
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Chem Bond 800
What are the two ways for a molecule to have a
bent geometry?
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A tetrahedral arrangement with two unshared
electron pairs (109.5) A planar triangle
geometry with one unshared electron pair (120)
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Chem Bond 1000
What are the four types of Unit Cells possible
for crystal structures??
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Simple Cubic 2r s Face centered 4r 2 (sqr.
Root r) Body centered 4r s (cube root
r) Hexagonal
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Chem Bond 1500
Q - Which is NOT linear? a) CO2 b) H2O c)
BeF2 d) N2
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A
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Chem Bond 2000
Why is the P-Cl bond in PCl5 a stronger bond than
the C-O in carbon monoxide?
A) Increased Dipole - Dipole Forces B) Hydrogen
Bonding C) Increased London Dispersion Forces
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States of Matter 100
Which of the following is not a gas at room
temperature?
A) O2 B) Ar C) F2 D) Br2
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Bromine is a red liquid
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States of Matter 200
Under what conditions would a substance sublimate
at room conditions (25 C and 1 atm)?
A) the critical temperature must be below the
triple point B) the slope of the fusion line
should be negative C) the triple point must be
at a pressure greater than 1 atm and 25C D)
the solid phase must be more dense than the
liquid phase
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States of Matter 400
What would happen to the pressure of a gas if the
temperature is tripled, the volume is doubled,
and the number of gas molecules is quadrupled ? .
. . .
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A) T x (1/3)(1/2)(1/4) B) T x (3/1)(2/1)(4/1) C)
T x (3/1)(1/2)(4/1) D) T x (3/1)(1/2)(1/4)
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Temp. is tripled P kT Volume is doubled
Pk(1/V) Moles is quad. P kn
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States of Matter 800
Is the slope for the solid/ liquid line in the
phase diagram of water positive, negative, or can
be either?
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States of Matter 1000
The kinetic molecular theory predicts that at a
given temperature...
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A) All gases have the same KE B) All gas
molecules have the same velocity C) Only real
gas molecules collide with each other D) On
average, heavier molecules move more slowly E)
Elastic collisions result in the loss of energy.
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States of Matter 1500
All of the following physical properties change
as solute is added to the solution. Which is NOT
a colligative property?
A) Boiling Point D) Surface Tension B) Vapor
Pressure E) Melting Point C) Osmotic Pressure
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States of Matter 2000
Which of the following is most likely to be
soluble in hexane? A) KCl D) H2O B) C2H5OH E)
C6H6 C) HC2H3O2
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Physical Chemistry 100
What is the free energy of a system at
equilibrium? . . .
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? G 0 _at_ equilibrium lt 0 if
spontaneous gt 0 if non-spontaneous
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Physical Chemistry 200
When ?H is positive and ?S is negative, will
temperature changes have an effect on the
spontaneity of a reaction?
YES NO
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Physical Chemistry 400
The rate of reaction will be large if
A) ?G is a large (-) number B) ?S is a large
(-) number C) ?H is a large (-) number D) Keq
is a large () number E) None of the above
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Physical Chemistry 800
The Law of Dulong and Petit says that the molar
specific heat of solid elements is approximately
25 J/molK. This suggests that. . .
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a) The heat absorbed depends only on the
number of atoms b) the heat absorbed depends
on the volume change with temperature c) the
heat absorbed can be calculated from the 1st
Law of Thermodynamics d) this law is an oddity
since it does not apply to elements that are
liquids / gases
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Physical Chemistry 1000
An inorganic catalyst doesnt...
A) Ensure proper geometry B) Weaken existing
bonds C) Lose effectiveness when heated D)
Decrease the activation energy of a reaction
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Catalysts lower the activation energy of a
reaction thus increasing the rate by ensuring
proper geometry and weakening existing bonds in
the molecule. Only ORGANIC catalysts are effected
by a temperature change.
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Physical Chemistry 1500
What equation would you use to solve How much
heat does it take to raise 10 grams of water by
10C? . . .
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q m c ?T
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Physical Chemistry 2000
What is the equation is used to find how
temperature changes affect rates of reaction?
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ln k2 Ea (T2 - T1)
k1 R T2T1
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Chemical Reactions 100
Which of the following would produce odor if
heated?
A) NH3 D) PbI2 B) Na(aq) E) A and C C) KI
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Chemical Reactions 200
One mole of electrons is how many coulombs?
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96,485 C
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Chemical Reactions 400
A molecule of NaHSO4 is . . . a) Acidic b)
Basic c) Neutral
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Na is neutral because it is the conjugate acid
of a strong base. HSO4- is acidic because it
can further produce H ions in solution (but it
also has amphoteric properties).
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Chemical Reactions 800
Which of the following compounds includes an
element that has the same oxidation as the
chlorine in sodium chlorate, NaClO3?
A) K3Fe(CN)6 D) (NH4) 2SO4 B) KMnO4 E)
KClO4 C) Al(NO3)3
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Chemical Reactions 1000
DAILY DOUBLE
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Which of the following statements is FALSE?
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A) reduction involves a gain of e- B) batteries
are galvanic cells C) a spontaneous reaction
always has a () Ecell D) electrolysis
reactions always produce a gas at at least one
electrode E) Galvanic cells can be used to
determine equilibrium constants
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Chemical Reactions 1500
What will be the products of the following
equation? FeCl2 HCl KMnO4 --gt ???
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FeCl2 HCl KMnO4 --gt
FeCl3 MnCl2 H2O KCl
Ox Fe2 --gt Fe3 e- Red MnO4 - H --gt
Mn2 H2O
(K and Cl- are spectator ions)
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Chemical Reactions 2000
Predict the net ionic equation for the following
reaction and tell what form the reactants will be
present . . .
The electrolysis of KI in water
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Ox 2 I- --gt I2 2e- Red 2 H2O 2 e-
--gt H2 2 OH-
2 H2O 2 I- --gt H2 2 OH- I2
Electrolysis of KI in water. (H2O has a Ered
closer to zero than K)
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Structure of Matter 100
Which of the following elements has the greatest
number of p electrons?
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A) C B) Si C) Fe D) Cl E) As
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Even though some of the others have more p
electrons in their OUTER shell, Arsenic has more
TOTAL p electrons.
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Structure of Matter 200
An electron with the four quantum numbers
3,2,-1,-1/2 may be an electron in an unfilled
sublevel of . . .
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A) Ca B) Fe C) Al D) Ar E) Ag
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B) Fe
It says UNFILLED sublevel. Since the 1st two
quantum s are 3 and 2 that means an
unfilled 3-d orbital. Fe is the only one with an
unfilled 3-d orbital.
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Structure of Matter 400
Chemical Properties are defined by the
A) Electrons C) Neutrons B) Protons D)
Ionization Energy C) Electronegativity
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Structure of Matter 800
The best way to estimate the boiling points of Pd
is to
A) average the b.p.s of Rh and Ag B) average
the b.p.s of Ni and Pt C) average the b.p.s of
Ir and Cu D) average the b.p.s of Co and Au E)
None of the above will work.
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Structure of Matter 1000
In which of the following pairs of elements is
the element with the lower boiling point listed
first?
A) Na, Cs D) Ba, Sr B) Te, Se E) I, Br C)
P, N
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States of Matter 1500
Carbon-14 has a half-life of 5730 years. How old
is a wooden object if 70 of the C-14 has decayed?
A) 2948 yr D) 4321 yr B) 1280 yr E) 7002
yr C) 9950 yr
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Radioactive decay is a first order reaction
therefore
Rate kX ln Xo kt
X
Ln 2 X k t 1/2
X
ln 2 k t 1/2 gt t 1/2 0.693/k
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Structure of Matter 2000
An electron that falls from a higher energy level
to n3 emits a wavelength that fall in what
series?
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Paschen Series
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Lyman n 8 --gt n 1
Ultraviolet
Balmer n 8 --gt n 2
Visible
Paschen n 8 --gt n 3
Infrared