Chemistry - Mcq

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.


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


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


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.


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.


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


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.


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


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.


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


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


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


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


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.


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.


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


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.


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


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


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


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


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.


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


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




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.


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.


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


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


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.


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%


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


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.


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


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.



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


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

ium

(243) Am 9

5Am

eric

ium

157.

25 Gd

64G

adol

iniu

m

158.

93 Tb 65Te

rbiu

m(24

7) Cm 96

Curiu

m

(247) B

k 97Be

rke

lium

162.

50 Dy

66D

yspr

osiu

m

164.

93 Ho 67

Hol

miu

m(25

1) Cf

98Ca

liforn

ium

(252) E

s 99Ei

nste

iniu

m

167.

26 Er 68Er

bium

168.

93 Tm 69

Thul

ium

(257) Fm 10

0Fe

rmiu

m

(258) M

d10

1M

ende

levi

um

173.

04 Yb 70Yt

terb

ium

(259) N

o10

2N

obel

ium

174.

97 Lu 71Lu

tetiu

m(26

2) Lr

103

Law

ren

cium

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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


7 335 Properties of Matter and Thermochemistry 6.1 D

8 335 Atomic Structure and Periodicity 2.4 B


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


15 338 Bonding and Reactions 8.4 A



18 340 Atomic Structure and Periodicity 3.3 D

19 341 Bonding and Reactions 4.5 B




23 343 Properties of Matter and Thermochemistry 1.1

24 344 Atomic Structure and Periodicity 2.6 C


26 344 Bonding and Reactions 4.6 D

27 345 Properties of Matter and Thermochemistry 6.2 C






33 348 Bonding and Reactions 5.2

34 349 Solutions, Equilibrium and Acid Base Theory 8.3 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.

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