XIX. Chemistry, High School
330
High School Chemistry TestThe spring 2012 high school Chemistry test was based on learning standards in the Chemistry content strand of the Massachusetts Science and Technology/Engineering Curriculum Framework (2006). These learning standards appear on pages 6973 of the Framework.
The Science and Technology/Engineering Curriculum Framework is available on the Department website at www.doe.mass.edu/frameworks/current.html.
Chemistry test results are reported under the following four MCAS reporting categories:
Atomic Structure and Periodicity
Bonding and Reactions
Properties of Matter and Thermochemistry
Solutions, Equilibrium, and Acid-Base Theory
Test Sessions
The high school Chemistry test included two separate test sessions, which were administered on consecutive days. Each session included multiple-choice and open-response questions.
Reference Materials and Tools
Each student taking the high school Chemistry test was provided with a Chemistry Formula and Constants Sheet/Periodic Table of the Elements. Copies of both sides of this formula sheet follow the final question in this chapter.
Each student also had sole access to a calculator with at least four functions and a square-root key.
The use of bilingual word-to-word dictionaries was allowed for current and former English language learner students only, during both Chemistry test sessions. No other reference tools or materials were allowed.
Cross-Reference Information
The table at the conclusion of this chapter indicates each items reporting category and the framework learning standard it assesses. The correct answers for multiple-choice questions are also displayed in the table.
331
ChemistrySeSSion 1
DIRECTIONSThis session contains twenty-one multiple-choice questions and two open-response questions. Mark your answers to these questions in the spaces provided in your Student Answer Booklet. You may work out solutions to multiple-choice questions in the test booklet.
ID:229504 A Common EQ
2 Cobalt has an atomicmassof 59 andan atomicnumberof 27.What does this information reveal aboutmostcobalt atoms?
A. They containmoreneutrons thanprotons.
B. Theynaturally have a net negative charge.
C. They attract protonsmore strongly than electrons.
D. They form ionswith a charge of127 in compounds.
ID:252678 A Common EQ
1 Whichof the following statementsdescribes thedifferencebetweenendothermic and exothermic chemicalreactions?
A. Energy is absorbed in endothermicreactionsbut is released inexothermic reactions.
B. Energy is conserved in endothermicreactionsbut is not conserved inexothermic reactions.
C. Endothermic reactions involvechanges in thenucleusof an atom,but exothermic reactionsdonotinvolve changes in thenucleus.
D. Endothermic reactionsoccurwhenelectrons are sharedbetween atoms,but exothermic reactionsoccur when electrons are transferredbetween atoms.
332
Chemistry Session 1
ID:260036 vp_graphsVH48.eps [opt_a0 D Common EQ
3 A liquidboilswhen its vapor pressure equals thepressureof the atmosphere.A student createsa graphof vapor pressure as a functionof temperature for purewater and for a solutionofwater and sucrose.
Whichof the followinggraphsbest represents vapor pressure as a functionof temperature forthe two liquids?
A.
1
100
Temperature (C)
Vap
or Pressure (atm
)
Water-sucrosesolution
Pure water
C.
1
100
Temperature (C)
Vap
or Pressure (atm
)
Water-sucrosesolution
Pure water
B.
1
100
Temperature (C)
Vap
or Pressure (atm
)
Water-sucrosesolution Pure water
D.
1
100
Temperature (C)
Vap
or Pressure (atm
) Water-sucrosesolution
Pure water
333
Chemistry Session 1
ID:229678 3210287_AR1.eps C Common EQ
4 Thediagrambelow represents onemolecule ofmethane (CH4).
HH C
H
H Whichof the following is a balanced
equation for the synthesis ofmethanefromcarbon andhydrogen?
A. C H CH4B. C H CH4 4C. C H CH2 2 4D. C H CH2 44
ID:216946 C Common EQ
5 Whichof the following subatomicparticles canbe found inside thenucleusof an atom?
A. electronsonly
B. neutronsonly
C. protons andneutrons
D. protons, neutrons, and electrons
334
Chemistry Session 1
ID:252153 A Common EQ
6 The tablebelowcontainsdata formercuryandwater at standardpressure.
SubstanceMelting Point (C)
Boiling Point (C)
mercury 39 357
water 0.0 100
Basedon thedata in the table,whichofthe followingpairs of substances couldexist at the same temperature?
A. ice and liquidmercury
B. liquidwater and solidmercury
C. water vapor and solidmercury
D. liquidwater andmercuryvapor
335
Chemistry Session 1
ID:261470 D Common EQ
9 A student adds ironfilings to acopper(II) chloride solution at roomtemperature.Abalanced equation for thereaction that occurs is shownbelow.
Fe(s) CuCl (aq) FeCl (aq) Cu(s)2 2
Whichof the following changeswouldmost likely increase the reaction rate?
A. using larger pieces of iron
B. performing the reaction in an ice bath
C. decreasing thevolumeof theCuCl2 solution
D. increasing the concentrationof theCuCl2 solution
ID:281962 B Common EQ
10 The equationbelow shows the reactionof ammoniawithwater.
NH g H O NH aq OH aq3 2 4( ) ( ) ( ) ( )l
According to theBrnsted-Lowrytheoryof acids andbases,whichof thefollowing is acting as the acid for theforward reaction?
A. NH3B. H2O
C. NH4+
D. OH
ID:206670 D Common EQ
7 Three identical balloons each containonemoleof gas.Oneballoon containsoxygen, one contains nitrogen, andonecontains argon.
Whichof the following changes involumewill happen if theballoons areplaced in awarmer room?
A. Theballoonwith argonwill decreasemost in volumebecause argon is anoble gas.
B. All of theballoonswill decreasein volume equally because thetemperature increased.
C. Theballoonwithoxygenwillincreasemost in volumebecauseoxygenhas the largestmolecules.
D. All of theballoonswill increase involume equally because theyhaveequal numbers ofmolecules.
ID:275846 B Common EQ
8 Howmanyelectronsare in theoutermostenergy shellof a calciumatom?
A. 1
B. 2
C. 6
D. 8
336
Chemistry Session 1
Question 11 is an open-response question.
BE SURE TO ANSWER AND LABEL ALL PARTS OF THE QUESTION. Show all your work (diagrams, tables, or computations) in your Student Answer Booklet. If you do the work in your head, explain in writing how you did the work.
Write your answer to question 11 in the space provided in your Student Answer Booklet.
ID:206688 206688_acid_base.eps Common EQ
11 Thediagramsbelow showa0.1Maqueous solutionofHCl and a 0.1Maqueous solutionofHF.
0.1 MHCl
0.1 MHF
H+H+
H+
H+
H+
H+
H+
H+ H+H+
H+
FF
HF
HF
HF
HF HFHF
HF
HF
Cl
ClCl
Cl
Cl ClCl
Cl
Cl
Cl
H+
a. IdentifyHCl andHFas acids or bases.Explainyour answer.
b. ThepHof the0.1MHCl solution is expected to be lower than thepHof the0.1MHF solution.Explainwhy, basedon thediagramsof the solutions and thedefinitionof pH.
337
Chemistry Session 1
Mark your answers to multiple-choice questions 12 through 22 in the spaces provided in your Student Answer Booklet. Do not write your answers in this test booklet, but you may work out solutions to multiple-choice questions in the test booklet.
ID:287584 B Common EQ
12 Whichof the following statementsbestdescribeswhat happens towater duringevaporation?
A. The temperature of thewaterincreases until thewatermoleculesreactwithnitrogen in the air.
B. Watermolecules on the surfaceovercome intermolecular forces andchange into thegas phase.
C. Watermoleculeson the surface comein contactwith airmolecules and arepulled into thegas phase.
D. The temperature of thewaterincreases until thewatermoleculesseparate and formoxygen andhydrogengas.
ID:288254 AVEBRY075_potassiumchlori A Common EQ
13 Whichof the following is a correctLewis dot structure for potassiumchloride?
A. ClK [ ]
B. ClK [ ]
C. ClK2 [ ]2
D. ClK2 [ ]2
338
Chemistry Session 1
ID:287569 A Common EQ
14 Whichof the following statements bestdescribes a differencebetweennuclearfission andnuclear fusion reactions?
A. Nuclei split duringfission andcombineduring fusion.
B. Fission formsheavier elements, andfusion forms lighter elements.
C. Fissiongenerates potential energy,and fusiongenerates kinetic energy.
D. Nuclei gain electronsduringfissionand release electronsduring fusion.
ID:275840 A Common EQ
15 Iron(II) chloride (FeCl2) is a product ofthe reactionbetween ironmetal (Fe) andhydrochloric acid (HCl), as shown in theequationbelow.
Fe HC1 FeC1 H2 2 2
What is the change in oxidationnumberof iron in this reaction?
A. from0 to 2
B. from 1 to 2
C. from0 to 2
D. from 1 to 2
339
Chemistry Session 1
ID:260041 D Common EQ
16 The reductionof carbondioxidebyhydrogengas takes place at 420C toproducewater vaporand carbonmonoxide.The equation for this reaction at equilibrium is shownbelow.
H (g) CO (g) H O(g) CO(g)2 2 2
Whichof the following changes in concentrationoccurwhenmorewater vapor is added to thesystemunder equilibriumconditions?
A. [H2] decreases, [CO2] decreases, [CO] increases
B. [H2] decreases, [CO2] decreases, [CO]decreases
C. [H2] increases, [CO2] increases, [CO] increases
D. [H2] increases, [CO2] increases, [CO]decreases
340
Chemistry Session 1
ID:258965 014_shape_opts.eps [opt_a C Common EQ
17 Whichof the followingmodelsbestrepresents the shapeof a compoundwithtrigonal planar geometry?
A.
B.
C.
D.
ID:216949 D Common EQ
18 Aneutral atomhasanouter shell electronconfigurationof 2s22p6.Towhichof thefollowinggroupsof elements does itbelong?
A. alkalimetals
B. alkaline-earthmetals
C. halogens
D. noble gases
341
Chemistry Session 1
ID:264340 A Common EQ
20 Inwhichof the following lists are theelements shown inorder of increasingelectronegativity?
A. Li,Be,O,F
B. O,F,Be,Li
C. F,Li,O,Be
D. Li,F,Be,O
D:260762 B Common EQ
19 Whichof the following statementsbest explainswhywater has a highsurface tension?
A. The forceof attractionbetweenneighboringpolarwatermolecules isweak.
B. The forceof attractionbetweenneighboringpolarwatermolecules is strong.
C. The forceof attractionbetweenneighboringnonpolarwatermolecules isweak.
D. The forceof attractionbetweenneighboringnonpolarwatermolecules is strong.
342
Chemistry Session 1
ID:229235 B Common EQ
21 Thebalanced equationbelow representsthe reactionofNaOHwithH3PO4.
NaOH H PO NaH PO H O3 4 2 4 2
When20gofNaOHreactswith49gofH3PO4, 9gofwater isproduced.HowmanygramsofNaH2PO4 areproduced?
A. 11g
B. 60g
C. 69g
D. 78g
ID:264310 B Common EQ
22 The averagedistancebetweenmoleculesalways increases duringwhichof thefollowingphase changes?
A. gas to solid
B. liquid to gas
C. gas to liquid
D. liquid to solid
343
Chemistry Session 1
Question 23 is an open-response question.
BE SURE TO ANSWER AND LABEL ALL PARTS OF EACH QUESTION. Show all your work (diagrams, tables, or computations) in your Student Answer Booklet. If you do the work in your head, explain in writing how you did the work.
Write your answer to question 23 in the space provided in your Student Answer Booklet.
ID:261154 Common EQ
23 Several properties for zinc (Zn) are listedbelow: brittle at room temperature, butmalleable between100Cand150C
bluish-white in color
burns in air at high temperatures, givingoff zincoxide (ZnO)gas
conducts heat and electricity
sinks inwater
reactswith acids andbases
exposed surfaces tarnish inmoist air
a. Identify two physical properties of zinc from the list.Explainwhy theproperties youidentified are physical properties andnot chemical properties.
b. Identify two chemical properties of zinc from the list.Explainwhy theproperties youidentified are chemical properties andnot physical properties.
344
ChemistrySeSSion 2
DIRECTIONSThis session contains nineteen multiple-choice questions and three open-response questions. Mark your answers to these questions in the spaces provided in your Student Answer Booklet. You may work out solutions to multiple-choice questions in the test booklet.
ID:216947 C Common EQ
24 In radiocarbondating, carbon-14undergoesdecay to becomenitrogen-14.
C N e14 14 06 7 1 1
What typeof reaction is this?
A. fusion
B. neutralization
C. nuclear
D. oxidation
ID:252564 A Common EQ
25 Whichof the following ideaswasproposedbyNielsBohr?
A. Electronsoccupy specific energylevelswithin an atom.
B. Thenucleusof an atomcontainsneutrons aswell as protons.
C. Anatom is a solid sphere that cannotbe separated into smaller parts.
D. An atomconsists of negative chargesembedded in a positively chargedsphere.
ID:229517 D Common EQ
26 Carbonreactswithchlorine to form 4CCl .What is thenameof thiscompound?
A. carbon4-chloride
B. 1-carbon4-chloride
C. tetracarbon chloride
D. carbon tetrachloride
345
Chemistry Session 2
ID:287582 C Common EQ
27 Astudent has 84.0gofN2 gas in a sealed500L container at 20C.Whichof the followingequations should the studentuse tocalculate thegaspressure?
A.1mol
P 84.0g R 500L28g
5 3 3 3
B.28g
P 84.0g R 293 K 500L1mol
5 3 3 3 3
C.
1mol84.0g R 293 K
28gP
500L
3 3 3
5
D.
28g84.0g R
1molP500L
3 35
346
Chemistry Session 2
ID:258930 A Common EQ
28 Awalk-in cooler has a volumeof1 1 104. L. If the temperature insidethe cooler is 3Cand thegas pressureis 1.0 atm, howmanymoles of gas areinside the cooler?
A. 4 9 102. mol
B. 4 5 104. mol
C. 2 5 105. mol
D. 6 0 1023. mol
347
Chemistry Session 2
ID:216953 D Common EQ
29 Aluminum (Al) has three electrons inits outer shell.Oxygen (O)needs twoelectrons to complete its outer shell.What is the chemical formula foraluminumoxide?
A. AlO
B. 2AlO
C. 2Al O
D. 2 3Al O
ID:258937 B Common EQ
30 Whichof the following statementsbestexplainswhy ionic solids dissolve inwater?
A. Water has high surface tension.
B. Water is a highlypolarmolecule.
C. Water ismoredense as a liquid thanas a solid.
D. Water has a higher boilingpoint thanpredictedby itsmolarmass.
ID:273206 D Common EQ
31 The chemical equationbelow representssulfur trioxide (SO3) in the atmospheremixingwith rainwater to form sulfuricacid (H2SO4),which is amajorcomponent of acid rain.
SO (g) H O( ) H SO ( )3 2 2 4l l
Themolarmass ofSO3 is 80.1g/moland themolarmass ofH2SO4 is98.1g/mol.HowmuchH2SO4 isproducedwhen128.0gofSO3mixeswith rainwater?
A. 98.1g
B. 105g
C. 128g
D. 157g
ID:275834 B Common EQ
32 Whichof the following actionsdecreases the entropyof a system?
A. boilingwater
B. freezingwater
C. dissolving salt inwater
D. mixingbaking soda and salt
348
Chemistry Session 2
Question 33 is an open-response question.
BE SURE TO ANSWER AND LABEL ALL PARTS OF EACH QUESTION. Show all your work (diagrams, tables, or computations) in your Student Answer Booklet. If you do the work in your head, explain in writing how you did the work.
Write your answer to question 33 in the space provided in your Student Answer Booklet.
ID:287891 Common EQ
33 Five chemical reactions are listed in the table below.Reaction 1 CaCO CaO CO3 2
Reaction 2 Ca(OH) HCl CaCl 2H O 2 2 22
Reaction 3 NH HCl NH Cl3 4
Reaction 4 PbO Pb O2 2
Reaction 5 2Mg O MgO2 2
a. Identifyone chemical reaction from the list that is a synthesis (combination) reaction.Explainwhyyou identified this reaction as synthesis.
b. Identifyone chemical reaction from the list that is a decomposition reaction.Explainwhyyou identified this reaction as decomposition.
c. Describe a combustion reaction.
d. Write a balanced chemical equation for a combustion reactionusing someor all of thesubstances from the table below.
C3H8 CO2
O2 H2
C H2O
349
Chemistry Session 2
Mark your answers to multiple-choice questions 34 through 43 in the spaces provided in your Student Answer Booklet. Do not write your answers in this test booklet, but you may work out solutions to multiple-choice questions in the test booklet.
ID:275928 A Common EQ
34 Whichof the following statementsexplainswhy thehumanbodyproduceschemical buffers?
A. Buffersmaintain a constant pH in theblood.
B. Buffers dissolve salts andminerals in theblood.
C. Buffers decompose foodmoleculesduringdigestion.
D. Buffers catalyze chemical reactionsin thebody cells.
ID:258935 B Common EQ
35 A6.0M solutionofHCl is diluted to1.0M.Howmanymillilitersof the6.0Msolutionwouldbeused to prepare 100.0mLof thediluted1.0M solution?
A. 6mL
B. 17mL
C. 33mL
D. 100mL
ID:251804 B Common EQ
36 After crudeoil is pumpedout of theground, itmust beprocessed in acracking tower.The tower separates it into lessdensechemicals likebutaneandgasoline, andmoredense chemicals likediesel fuel and tar.
Basedon this information, crudeoil canbest be classified as a
A. pure compound.
B. mixture of compounds.
C. mixture of pure elements.
D. solutionof plasma and liquid.
350
Chemistry Session 2
ID:229652 A Common EQ
37 Whena cupof hot chocolate cools from90C to80C,whichof the followingis happening to themolecules of theliquid?
A. Their rate ofmotion is decreasing.
B. Their valence electrons are being lost.
C. Their positions are becomingfixed in crystals.
D. Their averagedistance fromadjacentmolecules is increasing.
ID:275857 C Common EQ
38 A reactionyields 6.26gof a product.What is thepercent yield if thetheoretical yield is 18.81g?
A. 3.00%B. 10.6%C. 33.3%D. 56.1%
ID:274061 B Common EQ
39 The table belowprovides someinformation about anunidentifiedelement.
Physical Properties:
shiny silver-colored solid
easilyflattenedwith small hammer
denser thanwater
has4valence electrons
Chemical Properties:
doesnot reactwith sodium
reacts slowlywithoxygen
Basedon this information, theunidentified element isbest classifiedaswhichof the following?
A. ametal in group1 (1A)
B. ametal in group14 (4A)
C. a nonmetal in period4
D. ametalloid in period5
351
Chemistry Session 2
ID:281286 A Common EQ
40 Whichof the following statementsdescribes a gamma ray?
A. Agamma rayhas nomass.
B. Agamma rayhas a positive charge.
C. Agamma ray canbe stoppedby asheet of paper.
D. Agamma ray canbe converted intoa beta particle.
ID:246822 B Common EQ
41 The table below shows theelectronegativities of four elements.
Element Electronegativity
carbon 2.6
fluorine 4.0
hydrogen 2.2
oxygen 3.4
Whichof the followingbonds is themost polar?
A. carbonhydrogen
B. carbonfluorine
C. fluorinefluorine
D. hydrogenoxygen
352
Chemistry Session 2
ID:208301 208301_saltflask.eps A Common EQ
42 Thediagrambelow shows a cubeofsodiumchloridebeginning to dissolve inwater.
Erlenmeyer flask
Cube of NaClWaterat 20C
Whichof the following changeswillcause the cube todissolvemorequickly?
A. swirling theflask
B. removing the stopper
C. pouringoff half thewater
D. decreasing thewater temperature
ID:273212 C Common EQ
43 Whena scubadiver is deepunderwaterand exhales, air bubbles formand riseto the surfaceof thewater.Whichof thefollowing statementsbest describeswhathappens to the air bubbles as they riseto the surface?
A. Thenumberofmolecules in thebubbles increases, and thediameterof thebubbles increases.
B. Thenumberofmolecules in thebubbles decreases, and thediameterof thebubbles decreases.
C. Thenumberofmolecules in thebubbles remains the same, and thediameter of thebubbles increases.
D. Thenumberofmolecules in thebubbles remains the same, and thediameter of thebubbles decreases.
353
Chemistry Session 2
Questions 44 and 45 are open-response questions.
BE SURE TO ANSWER AND LABEL ALL PARTS OF EACH QUESTION. Show all your work (diagrams, tables, or computations) in your Student Answer Booklet. If you do the work in your head, explain in writing how you did the work.
Write your answer to question 44 in the space provided in your Student Answer Booklet.
ID:281306 Common EQ
44 The elements helium,neon, andxenon are located in group18 (8A) in theperiodic table.a. Explainwhy the atomicnumber increases fromhelium toneon to xenon.
b. Explainwhyhelium,neon, andxenon are located in different periods in theperiodic table.
c. Describe the chemical reactivity of helium,neon, andxenonand explainhow the locationof these elements in theperiodic table relates to their chemical reactivity.
354
Chemistry Session 2
Write your answer to question 45 in the space provided in your Student Answer Booklet.
ID:287607 Common EQ
45 Glucose (C6H12O6) is formed in plants by theprocess of photosynthesis.Thenet equation forphotosynthesis is shownbelow.
6 2 2 6 12 6 2CO 6H O H O Osunlight
C 6
a. Calculate themolarmass of glucose.Showyour calculations and includeunits in your answer.
b. Explainhow the amount of carbondioxide consumedby a plant canbedetermined frommeasuring the amount of oxygen releasedby theplant.Assumeexcesswater is available.
c. Calculate the amount of glucose, in grams, formedwhen100mol ofO2 is released.Showyour calculations and includeunits in your answer.
355
Common Polyatomic Ions
Ion Ionic Formula
Ammonium NH41
Carbonate CO32-
Hydroxide OH-
Nitrate NO3-
Phosphate PO43-
Sulfate SO42-
Combined Gas Law: P V
T
P V
T1 1
1
2 2
2
5
Ideal Gas Law: PV nRT5
Dilution Formula: M1V15M2V2Molar Volume of Ideal Gas at STP: 22.4L/mol
Ideal Gas Constant: R5 0.0821L atm/mol K58.31L kPa/mol K
STP: 1atm(101.3kPa),273K(0C)
Absolute Temperature Conversion: K5 C1 273
Definition of pH: pH5log[H3O1]5log[H1]
Avogadros Number: 6.0231023particles/mol
Nuclear Symbols
Name Symbol
Alpha particle or 24He
Beta particle bor10e
Gamma ray
Neutron 01n
Massachusetts Comprehensive Assessment SystemChemistry Formula and Constants Sheet
Massach
usetts Com
prehen
sive Assessm
ent System
6.94
Li 3Li
thiu
m
1.01
H 1H
ydro
gen
9.01 B
e 4Be
rylliu
m
2A 23A 13
4A 145A 15
6A 167A 17
3B 34B 4
5B 56B 6
7B 7
8B
89
101B 11
2B 12
22.9
9 Na 11
Sodi
um
24.3
1 Mg
12M
agne
sium
39.1
0 K 19Po
tass
ium
40.0
8 Ca 20Ca
lcium
85.4
7 Rb 37
Rub
idiu
m
87.6
2 Sr 38St
ront
ium
132.
91 Cs 55Ce
sium
137.
33 Ba 56 Bariu
m(22
3) Fr 87Fr
anci
um
(226) R
a 88R
adiu
m
44.9
6 Sc 21Sc
andi
um
47.8
8 Ti 22Ti
tani
um88
.91 Y 39
Yttri
um
91.2
2 Zr 40Zi
rcon
ium
138.
91 La 57La
ntha
num
178.
49 Hf
72H
afni
um
(227) A
c 89Ac
tiniu
m
(267) R
f10
4R
uthe
rford
ium
50.9
4 V 23Va
nadi
um
52.0
0 Cr 24Ch
rom
ium
92.9
1 Nb 41
Nio
bium
95.9
4 Mo
42M
olyb
denu
m18
0.95 Ta 73
Tanta
lum
183.
85 W 74Tu
ngs
ten
(268) D
b10
5D
ubni
um
(271) Sg 10
6Se
abor
gium
54.9
4 Mn
25M
anga
nese
55.8
5 Fe 26 Iron
(98) Tc 43
Tech
netiu
m
101.
07 Ru 44
Rut
heni
um18
6.21 Re 75
Rhe
nium
190.
23 Os
76O
smiu
m(27
2) Bh 107
Bohr
ium
(277) H
s10
8H
assi
um
58.9
3 Co 27 Coba
lt
58.6
9 Ni
28N
icke
l10
2.91 Rh 45
Rho
dium
106.
42 Pd 46Pa
lladi
um19
2.22 Ir 77
Iridi
um
195.
08 Pt 78Pl
atin
um
(276) M
t10
9M
eitn
eriu
m
(281)
63.5
5 Cu 29 Copp
er
65.3
9 Zn 30 Zinc
107.
87 Ag 47 Silver
112.
41 Cd 48Ca
dmiu
m19
6.97 Au 79 Go
ld
200.
59 Hg 80
Mer
cury
10.8
1 B 5Bo
ron
12.0
1 C 6Ca
rbon
26.9
8 Al 13Al
umin
um
28.0
9 Si 14Si
licon
69.7
2 Ga
31G
alliu
m
72.5
9 Ge
32G
erm
an
ium
114.
82 In 49In
dium
118.
71 Sn 50 Tin20
4.38 Tl 81
Thal
lium
207.
2 Pb 82 Lead
14.0
1 N 7N
itrog
en
16.0
0 O 8O
xyge
n30
.97 P 15
Phos
phor
us
32.0
6 S 16 Sulfu
r74
.92 As 33
Arse
nic
78.9
6 Se 34Se
leni
um12
1.75 Sb 51
Antim
ony
127.
60 Te 52Te
lluriu
m20
8.98 Bi 83
Bism
uth
(209) Po 84
Polo
nium
19.0
0 F 9Fl
uorin
e
20.1
8 Ne 10 Neon
35.4
5 Cl 17Ch
lorin
e
39.9
5 Ar 18 Argon
79.9
0 Br 35Br
omin
e
83.8
0 Kr 36Kr
ypto
n12
6.91 I 53
Iodi
ne
131.
29 Xe 54 Xeno
n(21
0) At
85As
tatin
e
(222) R
n 86R
adon
Gro
up (F
am
ily)
1A 14.
00 He 2
Hel
ium
8A 18
1
110
140.
12 Ce 58 Ceriu
m
140.
91 Pr 59Pr
aseo
dym
ium
232.
04 Th 90Th
oriu
m
231.
04 Pa 91Pr
otac
tiniu
m
144.
24 Nd 60
Neo
dym
ium
(145) Pm 6
1Pr
omet
hium
238.
03 U 92Ur
aniu
m
(237) N
p 93N
eptu
nium
150.
36 Sm 62Sa
mar
ium
151.
96 Eu 63Eu
ropi
um(24
4) Pu 94Pl
uton
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93 Tb 65Te
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93 Ho 67
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26 Er 68Er
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93 Tm 69
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ELEM
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Mas
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356
357
High School Chemistry Spring 2012 Released Items:
Reporting Categories, Standards, and Correct Answers*
Item No. Page No. Reporting Category StandardCorrect Answer
(MC)*
1 331 Properties of Matter and Thermochemistry 6.4 A
2 331 Atomic Structure and Periodicity 2.2 A
3 332 Solutions, Equilibrium and Acid Base Theory 7.4 D
4 333 Bonding and Reactions 5.1 C
5 333 Atomic Structure and Periodicity 2.2 C
6 334 Properties of Matter and Thermochemistry 1.1 A
7 335 Properties of Matter and Thermochemistry 6.1 D
8 335 Atomic Structure and Periodicity 2.4 B
9 335 Solutions, Equilibrium and Acid Base Theory 7.5 D
10 335 Solutions, Equilibrium and Acid Base Theory 8.1 B
11 336 Solutions, Equilibrium and Acid Base Theory 8.2
12 337 Properties of Matter and Thermochemistry 6.3 B
13 337 Bonding and Reactions 4.2 A
14 338 Atomic Structure and Periodicity 2.7 A
15 338 Bonding and Reactions 8.4 A
16 339 Solutions, Equilibrium and Acid Base Theory 7.6 D
17 340 Bonding and Reactions 4.4 C
18 340 Atomic Structure and Periodicity 3.3 D
19 341 Bonding and Reactions 4.5 B
20 341 Atomic Structure and Periodicity 3.4 A
21 342 Atomic Structure and Periodicity 2.3 B
22 342 Properties of Matter and Thermochemistry 1.3 B
23 343 Properties of Matter and Thermochemistry 1.1
24 344 Atomic Structure and Periodicity 2.6 C
25 344 Atomic Structure and Periodicity 2.1 A
26 344 Bonding and Reactions 4.6 D
27 345 Properties of Matter and Thermochemistry 6.2 C
28 346 Properties of Matter and Thermochemistry 6.2 A
29 347 Bonding and Reactions 4.1 D
30 347 Solutions, Equilibrium and Acid Base Theory 7.1 B
31 347 Bonding and Reactions 5.5 D
32 347 Properties of Matter and Thermochemistry 6.5 B
33 348 Bonding and Reactions 5.2
34 349 Solutions, Equilibrium and Acid Base Theory 8.3 A
35 349 Solutions, Equilibrium and Acid Base Theory 7.2 B
36 349 Properties of Matter and Thermochemistry 1.2 B
37 350 Properties of Matter and Thermochemistry 6.3 A
38 350 Bonding and Reactions 5.6 C
39 350 Atomic Structure and Periodicity 3.2 B
40 351 Atomic Structure and Periodicity 2.5 A
358
Item No. Page No. Reporting Category StandardCorrect Answer
(MC)*
41 351 Bonding and Reactions 4.3 B
42 352 Solutions, Equilibrium and Acid Base Theory 7.3 A
43 352 Properties of Matter and Thermochemistry 6.1 C
44 353 Atomic Structure and Periodicity 3.1
45 354 Bonding and Reactions 5.3
*Answersareprovidedhereformultiple-choiceitemsonly.Sampleresponsesandscoringguidelinesforopen-responseitems,whichareindicatedbyshadedcells,willbepostedtotheDepartmentswebsitelaterthisyear.