XIX. Chemistry, High School · 2012. 6. 22. · High School Chemistry Test The spring 2012 high...

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XIX. Chemistry, High School

Transcript of XIX. Chemistry, High School · 2012. 6. 22. · High School Chemistry Test The spring 2012 high...

  • 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 69–73 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 item’s 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 P

    ress

    ure

    (atm

    )

    Water-sucrosesolution

    Pure water

    C.

    1

    100

    Temperature (°C)

    Vap

    or P

    ress

    ure

    (atm

    )

    Water-sucrosesolution

    Pure water

    B.

    1

    100

    Temperature (°C)

    Vap

    or P

    ress

    ure

    (atm

    )

    Water-sucrosesolution Pure water

    D.

    1

    100

    Temperature (°C)

    Vap

    or P

    ress

    ure

    (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 balancedequation 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 theBrønsted-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+

    F–F–

    HF

    HF

    HF

    HF HFHF

    HF

    HF

    Cl–

    Cl–Cl–

    Cl–

    Cl– Cl–Cl–

    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 420°C 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 between100°Cand150°C

    • 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 20°C.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 3°Cand 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 a“cracking 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 from90°C to80°C,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. carbon–hydrogen

    B. carbon–fluorine

    C. fluorine–fluorine

    D. hydrogen–oxygen

  • 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 20°C

    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 the diameterof 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: R 5 0.0821L• atm/mol• K 58.31L• kPa/mol• K

    STP: 1atm(101.3kPa),273K(0°C)

    Absolute Temperature Conversion: K 5 °C1 273

    Definition of pH: pH5log[H3O1]5log[H1]

    Avogadro’s Number: 6.0231023particles/mol

    Nuclear Symbols

    Name Symbol

    Alpha particle or 24 He

    Beta particle bor−10e

    Gamma ray

    Neutron 01n

    Massachusetts Comprehensive Assessment SystemChemistry Formula and Constants Sheet

  • Mas

    sach

    use

    tts

    Com

    pre

    hen

    sive

    Ass

    essm

    ent

    Sys

    tem

    6.94

    Li 3Li

    thiu

    m

    1.01

    H 1H

    ydro

    gen

    9.01

    Be 4

    Ber

    ylliu

    m

    2A 23A 1

    34A 1

    45A 1

    56A 1

    67A 1

    7

    3B 34B 4

    5B 56B 6

    7B 7

    8B

    89

    101B 1

    12B 1

    2

    22.9

    9 Na

    11S

    odiu

    m

    24.3

    1 Mg

    12M

    agne

    sium

    39.1

    0 K 19P

    otas

    sium

    40.0

    8 Ca

    20C

    alci

    um85

    .47 Rb

    37R

    ubid

    ium

    87.6

    2 Sr

    38S

    tron

    tium

    132.

    91 Cs

    55C

    esiu

    m

    137.

    33 Ba

    56B

    ariu

    m(2

    23) Fr 87

    Fran

    cium

    (226

    ) Ra

    88R

    adiu

    m

    44.9

    6 Sc

    21S

    cand

    ium

    47.8

    8 Ti

    22T

    itani

    um88

    .91 Y 39

    Yttr

    ium

    91.2

    2 Zr

    40Z

    ircon

    ium

    138.

    91 La 57La

    ntha

    num

    178.

    49 Hf

    72H

    afni

    um

    (227

    ) Ac

    89A

    ctin

    ium

    (267

    ) Rf

    104

    Rut

    herf

    ordi

    um

    50.9

    4 V 23V

    anad

    ium

    52.0

    0 Cr

    24C

    hrom

    ium

    92.9

    1 Nb

    41N

    iobi

    um

    95.9

    4 Mo

    42M

    olyb

    denu

    m18

    0.95 Ta 73

    Tant

    alum

    183.

    85 W 74Tu

    ngst

    en(2

    68) Db

    105

    Dub

    nium

    (271

    ) Sg

    106

    Sea

    borg

    ium

    54.9

    4 Mn

    25M

    anga

    nese

    55.8

    5 Fe 26 Iron

    (98)

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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,willbepostedtotheDepartment’swebsitelaterthisyear.