Knowledge, understanding and skills with references to the ... · e. More practice? CYU Q. 10 p. 243 Be able to identify organic and inorganic compounds a. Identify the following

!ChemistryUnit(Chapter4,5,6,7)Review!

VocabularyAcids Atomic-number AtomsBases Beta-par3cle Bohr-diagramsBromothymol-blue Catalyst Combus3onCompounds Concentra3on Conserva3onofmassCovalentbonding Decomposi3on ElectronInorganic Ionicbonding IonsLewisdiagrams Litmuspaper Lone-pairMass-number Methylorange Molecules Neutraliza3on(acid-base) Neutron Organic Phenolphthalein Polyatomic Proton Salts Singleanddoublereplacement Surfacearea Synthesis Unpairedelectrons Valenceelectron!Knowledge,understandingandskillswithreferencestothelearninggoals

Knowthecharges,rela3vemassesandloca3onsofthethreesubatomicpar3cles

Moreprac3ce?ReadingCheckp.171!Beabletoiden3fytheatomorionbasedonthenumberofprotonsandelectron

a.

b. Moreprac3ce?CYUQ.7p.183Iden3fyIonic(metalandnon-metal)andcovalentcompounds(metalandnon-metal)

a. aIden3fythefollowingcompoundsasionicorcovalent:LiF,CaCO3,Cl2,NH3,Fe2O3,CF4

b. Moreprac3ce?Prac3ceproblems#1p.197!!

Name Charge Loca3on Rela3veMass

Atomorion Atomicnumber #ofprotons #ofelectronO2- 8Fe 26

34 34

! of !1 14

1. I can demonstrate knowledge of the three subatomic particles, their properties, and their location within the atom (e.g., by creating models)

2. I can define and give examples of ionic bonding and covalent bonding

BeabletodrawandinterpretBohrModelsforatoms,ionsandmoleculesa. DrawtheBohrModelforB,Al3+,H2OandNaF!!!!!b. Moreprac3ce?CYUQ.13p.183

BeabletodrawandinterpretLewisstructuresofcompoundsa. DrawtheLewisstructureofcovalentHFandionicNaF!!!b. Moreprac3ce?CYUQ.14p.183

Writethenameorformulaofthefollowingioniccompounds

Writethenameorformulaofthefollowingcovalentcompounds

MorePrac3ce?CYUQ.7,9and11p.201!! !

Fe(OH)Na3PO

magnesium(II)nitratePBF4

aluminiumphosphidesodiumbromide

CO2

dinitrogentrioxideOCl2

diphosphoroustetrafluoride

! of !2 14

5. I can draw and interpret Lewis diagrams showing single bonds for ionic compounds and covalent molecules

3. I can with reference to elements 1 to 20 on the periodic table, draw and interpret Bohr models, including protons, neutrons, and electrons, of atoms, ions, molecules - covalent bonding, and ionic compounds.

7. I can use the periodic table and a list of ions (including polyatomic ions)to name and write chemical formulae for common ionic compounds, using appropriate terminology

8. I can convert names to formulae and formulae to names for covalent compounds, using prefixes up to “deca”

Writeandbalancechemicalequa3onsa. Balancethefollowingequa3ons____CH4+____O2→____CO2+____H2O____AlCl3→____Al+____Cl2b. Writeandbalancethefollowingequa3onscalciumnitrate+potassiumcarbonate→potassiumnitrate+calciumcarbonate!!nitrogenmonoxide+oxygen→nitrogendioxide!!c. Rememberthesevendiatomicelementswhenwri3ngchemicalformulas:!!d. Moreprac3ce?Prac3ceproblemsp.211

Beabletoiden3fyanacid,abaseandasaltbasedoncharacteris3cs,nameandformulaa. Giveanexampleoftwoacids,twobasesandtwosalts(giveformulaandname)!!!

b. WhatisthepHofanacid?Abase?Giveanexampleofeach.!!

c. Colourthescalesbelow

d. MorePrac3ce?CYUQ.1-6p.233

1 2 3 4 5 6 7 8 9 10 11 12 13 14MethylorangeBromothymolblueLitmusPhenolphthaleinIndigocarmine

! of !3 14

11. I can write and balance (using the lowest whole number coefficients) chemical equations from formulae, word equations, or descriptions of experiments

1. I can differentiate between acids and bases with respect to chemical formulae and properties

2. I can explain the significance of the pH scale, with reference to common substances

3. I can identify acids and bases using indicators

5. I can recognize salts with respect to chemical formulae and properties

Knowcommonreac3onsinvolvingacids,basesandsalts(nosoimportant)a. Acid+base→ salt + waterb. Metal oxide + water → basec. Non-metal oxide + water → acidd. Acid + metal → salt + hydrogen gase. More practice? CYU Q. 10 p. 243

Be able to identify organic and inorganic compoundsa. Identify the following molecules as organic or inorganicC5H12 Na2CO3 C6H12O6 CO2 CH3NH2 !b. MorePrac3ce?CYUQ.4,11p.251

a. Iden3fythefollowingreac3onsascombus3on,synthesis,decomposi3on,singleordoublereplacement

i. CO2→ C + O2ii. Au(NO3)3+Ag→ Au + 3AgNO3iii. 2Li + 3N2 → 2Li3Niv. FeBr2 + ZnSO4 → ZnBr2 + FeSO4

b. Complete and balance the following chemical reactionsi. Fe2O3→ii. Al + NiBr2 →iii. Cl2 + NiBr2 →iv. C18H38 + O2 →

c. More practice? CYU Q. 1, 5 p. 271 !!!!!!

H2COsulferic acid

H2SOhydrogen chloride

! of !4 14

4. I can recognize the names and formulae of common acids

6. I can recognize metal and non-metal oxides and describe their reaction with water

7. I can define and give examples organic compounds and inorganic compounds

1.I can identify, give evidence for, predict products of, and classify the following types of chemical reactions: synthesis (combination), decomposition, single and double replacement, neutralization (acid-base), combustion

a. Iden3fywhichofthefourfactorsiseffec3ngthereac3onrateinthefollowingexamplesi. Extradishsoapisaddedtohelpwashofagreasypanii. Firewoodischoppedtohelpstartafireiii. Alightedmatchisbroughtnearacandletolightitiv. Thereac3onofoxygenandsucroseinhumancellstakesplaceinthepresenceofan

enzyme.b. MorePrac3ce?CYUQ.9-13p.281!

RadioacDvityVocabulary Alpha-particle Beta-particle Fission Fusion Gamma radiation Half-life Isotope Radioactive decay !Knowledge, understanding and skills

a. Complete the table below:

� b. More Practice? Practice problems p. 291

a. Identify the following as alpha, beta or gamma decay

� �

� �

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continued

Section

7.1Summary

122 MHR • Section 7.1 Atomic Theory, Isotopes, and Radioactive Decay © 2008 McGraw-Hill Ryerson Limited

How is radioactive decay expressed?Radioactivity results when the nucleus of an atom decays. There are three radioactive decay processes:1. Alpha decay: The emission of an alpha particle (the

same particles found in the nucleus of a helium atom) from a nucleus is a process called alpha decay. When a radioactive nucleus emits an alpha particle, the atomic number of the product nucleus is reduced by two, and its mass number by four. However, the sum of the atomic numbers and the sum of the mass numbers on each side of the arrow remain equal.

226

88

Ra → 222 86

Rn + 4 2 a

2. Beta decay: In beta decay, a neutron changes into a proton and a beta particle, an electron. The proton remains in the nucleus while the electron leaves the nucleus. Since the proton remains in the nucleus, the atomic number of the element increases by one—it has become an atom of the next higher element on the periodic table. However, its mass number does not change, as a proton of almost equal mass has replaced the neutron.

131

53

I → 131

54

Xe + 0

-1

b

3. Gamma decay: Gamma decay results from a redistribution of energy within the nucleus. Gamma radiation consists of rays of high-energy, short-wavelength radiation. A gamma ray is given off as the isotope changes from a high-energy state to a lower energy state.

60

28

Ni* → 60

28

Ni + 0

0 g

The “*” means that the nickel nucleus has extra energy that is released as a gamma ray.

120_143_BCSci10_U2CH07_098461.in122 122120_143_BCSci10_U2CH07_098461.in122 122 7/11/08 5:38:21 PM7/11/08 5:38:21 PM

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continued

Section

7.1Summary




226

88

Ra → 222 86

Rn + 4 2 a


131

53

I → 131

54

Xe + 0

-1

b


60

28

Ni* → 60

28

Ni + 0

0 g



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continued

Section

7.1Summary




226

88

Ra → 222 86

Rn + 4 2 a


131

53

I → 131

54

Xe + 0

-1

b


60

28

Ni* → 60

28

Ni + 0

0 g



! of !5 14

2. I can explain how factors such as temperature, concentration, presence of a catalyst, and surface area can affect the rate of chemical reactions

1. I can define isotope in terms of atomic number and mass number, recognizing how these are communicated in standard atomic notation

2. I can relate radioactive decay (e.g., alpha, beta, gamma) to changes in the nucleus

3. I can relate the following subatomic particles to radioactive decay: proton, neutron, electron, alpha particle, and beta particle

� � !

!a. Complete the following and identity them as alpha, beta, gamma, fusion or fission:

�

�

�

�

�

� b. More Practice? CYU Q. 11, 12, 13 p 301 Practice problems p. 317 !

Be able to explain and do calculations involving half-life a. Complete the following tables:

� b. A 24 g sample of a radioactive isotope decayed to 1.5 g in 48 minutes. How much of the

original parent isotope remained after 24 minutes? !c. The half-life of a particular radioactive isotope is 6 hours. What percent of the daughter

isotope would be present after 1 day? !d. You should also be able to read decay curves. (CYU Q. 9 p. 311) e. More practice? CYU Q. 6, 7, 9, 12 p. 311 !!

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Use the following diagram showing the penetrating power of a type of radiation to answer question 12.

12. What does “X” represent?

A. a gamma ray

B. a beta particle

C. an alpha particle

D. a high-speed electron

13. Which type of radioactive decay process results in no change to the nucleus?

A. beta decay

B. alpha decay

C. gamma decay

14. The symbol 4 He2 is equivalent to which of

the following?

A. 0 e–1

B. 0 b-1

C. 0 g0

D. 4 a2

15. Which of the following represents a beta decay?

A. 131 I53 ➔ 131 Xe

54 + 0 e–1

B. 60 Ni*28 ➔ 60 Ni

28 + 0 g0

C. 226 Ra88 ➔ 222 Rn

86 + 4 a2

D. 231Pa91 ➔ 227 Ac

89 + 4 He2

Use the following incomplete nuclear equation to answer question 16.

144 NdI60

➔ + α42

16. What is product of this decay process?

A cobalt-58

B. cerium-58

C. cerium-140

D. samarium-62

AssessmentSection 7.1

Paper

X

Aluminium Lead


Name Date


PDF Pass

Use the following diagram showing the penetrating power of a type of radiation to answer question 12.

12. What does “X” represent?

A. a gamma ray

B. a beta particle

C. an alpha particle

D. a high-speed electron

13. Which type of radioactive decay process results in no change to the nucleus?

A. beta decay

B. alpha decay

C. gamma decay

14. The symbol 4 He2 is equivalent to which of

the following?

A. 0 e–1

B. 0 b-1

C. 0 g0

D. 4 a2

15. Which of the following represents a beta decay?

A. 131 I53 ➔ 131 Xe

54 + 0 e–1

B. 60 Ni*28 ➔ 60 Ni

28 + 0 g0

C. 226 Ra88 ➔ 222 Rn

86 + 4 a2

D. 231Pa91 ➔ 227 Ac

89 + 4 He2

Use the following incomplete nuclear equation to answer question 16.

144 NdI60

➔ + α42

16. What is product of this decay process?

A cobalt-58

B. cerium-58

C. cerium-140

D. samarium-62

AssessmentSection 7.1

Paper

X

Aluminium Lead


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Applying KnowledgeSection 7.3

Use with textbook pages 312–321.

Nuclear fission and fusion reactionsRemember the following two rules when working with nuclear equations:

I. The sum of the mass numbers does not change.

II. The sum of the charges in the nucleus does not change.

Identify each nuclear equation (nuclear fission or nuclear fusion) and then complete the nuclear equation.

1. 1 0 n +

235

92 U

143

54 Xe +

90

38 Sr + 1

0 n

2. 2 1 H + 1

1 H + 3

1 H

3. 1 0 n +

235

92 U

152

60 Nd + + 4 1

0 n

4. 2 1 H + 2

1 H

3

2 He +

5. 1 0 n +

90

37 Rb +

143

55 Cs + 3 1

0 n

6. 2 1 H +

3

1 H 4

2 He +

7. 1 0 n +

256

100 Fm +

140

54 Xe + 4 1

0 n

8. 1 0 n +

235

92 U

106

39 Y + + 3 1

0 n

9. 1 0 n +

235

92 U

115

49 In +

118

43 Tc + 1

0 n

10. 1 0 n +

137

52 Te +

100

42 Mo + 3 1

0 n

142 MHR • Section 7.3 Nuclear Reactions © 2008 McGraw-Hill Ryerson Limited


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1. 1 0 n +

235

92 U

143

54 Xe +

90

38 Sr + 1

0 n

2. 2 1 H + 1

1 H + 3

1 H

3. 1 0 n +

235

92 U

152

60 Nd + + 4 1

0 n

4. 2 1 H + 2

1 H

3

2 He +

5. 1 0 n +

90

37 Rb +

143

55 Cs + 3 1

0 n

6. 2 1 H +

3

1 H 4

2 He +

7. 1 0 n +

256

100 Fm +

140

54 Xe + 4 1

0 n

8. 1 0 n +

235

92 U

106

39 Y + + 3 1

0 n

9. 1 0 n +

235

92 U

115

49 In +

118

43 Tc + 1

0 n

10. 1 0 n +

137

52 Te +

100

42 Mo + 3 1

0 n



Name Date

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1. 1 0 n +

235

92 U

143

54 Xe +

90

38 Sr + 1

0 n

2. 2 1 H + 1

1 H + 3

1 H

3. 1 0 n +

235

92 U

152

60 Nd + + 4 1

0 n

4. 2 1 H + 2

1 H

3

2 He +

5. 1 0 n +

90

37 Rb +

143

55 Cs + 3 1

0 n

6. 2 1 H +

3

1 H 4

2 He +

7. 1 0 n +

256

100 Fm +

140

54 Xe + 4 1

0 n

8. 1 0 n +

235

92 U

106

39 Y + + 3 1

0 n

9. 1 0 n +

235

92 U

115

49 In +

118

43 Tc + 1

0 n

10. 1 0 n +

137

52 Te +

100

42 Mo + 3 1

0 n



Name Date

PDF Pass







1. 1 0 n +

235

92 U

143

54 Xe +

90

38 Sr + 1

0 n

2. 2 1 H + 1

1 H + 3

1 H

3. 1 0 n +

235

92 U

152

60 Nd + + 4 1

0 n

4. 2 1 H + 2

1 H

3

2 He +

5. 1 0 n +

90

37 Rb +

143

55 Cs + 3 1

0 n

6. 2 1 H +

3

1 H 4

2 He +

7. 1 0 n +

256

100 Fm +

140

54 Xe + 4 1

0 n

8. 1 0 n +

235

92 U

106

39 Y + + 3 1

0 n

9. 1 0 n +

235

92 U

115

49 In +

118

43 Tc + 1

0 n

10. 1 0 n +

137

52 Te +

100

42 Mo + 3 1

0 n



Name Date


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Radioactive decay and nuclear equationsRemember the following two rules when working with nuclear equations:



Identify each nuclear equation as alpha decay, beta decay, or gamma decay, and then complete the nuclear equation.

1. 32

15

P 32

16 S +

2. 218

84

Po + 42

3. 185 Ar +

4. 2412 Mg* + 0

0

5. 23491 Pa +

42

6. 14158 Ce +

0-1

7. 21684 Po +

0-1

8. 209 F

2010 Ne +

9. 5826 Fe*

5826 Fe +

10. 22187 Fr +

42

11. 14964 Gd* +

00

12. 22686 Ra

22226 Rn +

13. 21282 Pb +

0-1

14. 21483 Bi

21081 +

15. 25498 Cf +

00

γ

He

α

e

β

α

γ


Tl

β

γ

0-1

e


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Radioactive decay and nuclear equationsRemember the following two rules when working with nuclear equations:



Identify each nuclear equation as alpha decay, beta decay, or gamma decay, and then complete the nuclear equation.

1. 32

15

P 32

16 S +

2. 218

84

Po + 42

3. 185 Ar +

4. 2412 Mg* + 0

0

5. 23491 Pa +

42

6. 14158 Ce +

0-1

7. 21684 Po +

0-1

8. 209 F

2010 Ne +

9. 5826 Fe*

5826 Fe +

10. 22187 Fr +

42

11. 14964 Gd* +

00

12. 22686 Ra

22226 Rn +

13. 21282 Pb +

0-1

14. 21483 Bi

21081 +

15. 25498 Cf +

00

γ

He

α

e

β

α

γ


Tl

β

γ

0-1

e


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Radioactive decay 1. Define the following terms.

(a) half-life

(b) decay curve

(c) parent isotope

(d) daughter isotope

2. Complete the following tables.

Half-Life Percent of parent isotope

Percent of daughter isotope

Half-Life Fraction of parent isotope

Fraction of daughter isotope

0 0

1 1

2 2

3 3

4 4

3. A rock sample contains 120 g of a radioactive isotope. The radioactive isotope has a half-life of 5 years.

(a) Complete the following table.

Half-Life Time (a) Mass (g)

0 01 52 103 154 205 25

(b) How much of the radioactive isotope if left after 25 years have passed?

(c) How many half-lives have passed if there is only 15 g of the parent isotope left?

(d) How many years have passed if there is only 7.5 g of the parent isotope left?

ApplyingKnowledgeSection 7.2

132 MHR • Section 7.2 Half-Life © 2008 McGraw-Hill Ryerson Limited


! of !6 14

4. I can complete and balance nuclear equations to illustrate radioactive decay

5. I can explain half-life with reference to rates of radioactive decay

Compare and contrast fusion and fission a. Complete the following table

� b. Identify the following as fusion or fission

�

� c. More Practice? Chapter Review Q. 29 p. 327 !!

Provincial exam practice question: 29 Questions (~35 %, 40 min)!1. Which of the following is an ionic compound? A. H2 B. NH3 C. CO32- D. K2Cr2O7 !

Use the following Bohr model diagram to answer the next question.

" 2. Which of the following is represented by the diagram above?

A. neon atom B. carbon ion C. magnesium ion D. magnesium atom !Use the following Bohr model diagram to answer the next question. !

" 3. How many valence electrons are illustrated?

A. 1 B. 7 C. 16 D. 17 !

Checking Concepts1. What is nuclear fission?2. What is nuclear fusion?3. Write a nuclear equation representing a fission

reaction that occurs in CANDU reactors.4. Write a nuclear equation representing a fusion

reaction that occurs at the centre of our Sun.5. What is a chain reaction? 6. Write all the symbols that represent each of the

following. (a) alpha particle(b) beta particle(c) proton(d) electron(e) neutron(f) hydrogen-1 nucleus (g) helium-4 nucleus

7. Consider these particles taken together: 10n ! 235

92U(a) What is the total mass number?(b) What is the total atomic number?

8. Consider these particles taken together: 9236Kr ! 141

56Ba ! 3 10n(a) What is the total mass number?(b) What is the total atomic number?

Understanding Key Ideas9. Consider the following nuclear equation.

10n ! 235

92U ➔ 9236Kr ! 141

56Ba ! 3 10n ! energy.

(a) How was the uranium-235 induced toundergo a nuclear reaction?

(b) How many neutrons were produced by thisprocess?

(c) Is this reaction a fusion reaction or a fissionreaction?

(d) How could this reaction lead to a chainreaction that could result in a nuclearexplosion?

(e) Does this reaction consume energy orrelease energy overall? Explain.

10. What is the indicated daughter nucleus?

(a) 10n ! 235

92U ➔ ____ ! 12753I ! 3 10n !

energy

(b) 10n ! 235

92U ➔ ____ ! 11950Sn ! 3 10n !

energy

(c) 10n ! 235

92U ➔ ____ ! 11549In ! 3 10n !

energy

11. Copy and complete the following chart in yournotebook.

Suppose a House of Commons committee forthe government of Canada has asked you toadvise it on nuclear energy research. Althoughthe committee members would be prepared towait up to 20 years for energy production tocome on line, they would like to pursue researchin either fission technology or fusion technology,but not both. What advice would you give thecommittee to help them make a decision? Whatalternative would you suggest if you felt neithertechnology was a good choice?

Pause and Reflect

Chapter 7 The atomic theory explains radioactivity. • MHR 325

Fission Fusion

(a) Does this reaction obey the law of conservation of mass?

(b) Is this reaction used for the production of electrical energy?

(c) Does this reaction produce radioactive by-products?

(d) Does this reaction involve the release of energy?

(e) Is this reaction used in nuclear weapons?

BCS10_C07_F 3/12/08 1:53 PM Page 325

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What is nuclear fusion?Nuclear fusion is a nuclear reaction in which small nuclei combine to produce a larger nucleus. Other subatomic particles as well as energy are released in this process. Fusion occurs at the core of the Sun and other stars where sufficient pressure and high temperatures cause isotopes of hydrogen to collide with great force. This forces two nuclei of hydrogen to merge into a single nucleus, releasing an enormous amount of energy. The fusion reaction that occurs in the Sun is given below.

2 1 H +

3

1 H 4

2 He + 1

0 n + energy

We do not currently have the technology to extract energy from fusion reactions. One of the difficulties is achieving and containing the high temperatures and pressures required to bring about fusion.●✔

●✔ Reading Check

Identify the main differ-ence between fission and fusion.


Identify the main differ-ence between fission and fusion.

continued

Section

7.3Summary

© 2008 McGraw-Hill Ryerson Limited Section 7.3 Nuclear Reactions • MHR 139


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Nuclear ReactionsTextbook pages 312–325

Before You ReadNuclear reactors supply energy to many parts of Canada. Summarize what you already know about nuclear reactions in the lines below.

What is nuclear fission?Nuclear fission is a nuclear reaction in which a nucleus breaks apart, producing two or more smaller nuclei, subatomic particles, and energy. For example, for Uranium-235,

1 0 n +

235

92 U

92

36 Kr + 141

56 Ba + 3 1

0 n + energy

Heavy nuclei tend to be unstable because of the repulsive forces between their many protons. In order to increase their stability, atoms with heavy nuclei may split into atoms with lighter nuclei. The fission of a nucleus is accompanied by a very large release of energy. Fission is the source of energy for all nuclear power generation used today; however, the radioactive daughter products are a significant waste disposal problem. ●✔

How do nuclear reactions work?In typical chemical reactions, the energy produced or used is so small that there is very little change in mass. There are no changes in the nuclei of the reactants, so the identities of the atoms do not change. Chemical reactions involve electrons and rearrangements in the way atoms and ions are connected to each other.

SummarizeAs you read this section, highlight the main point in each paragraph. Then write a short paragraph summarizing what you have learned.

◆✏ Mark the Text

SummarizeAs you read this section, highlight the main point in each paragraph. Then write a short paragraph summarizing what you have learned.

◆✏ Mark the Text


Why do heavy nuclei tend to be unstable?


Why do heavy nuclei tend to be unstable?

Section

7.3Summary

© 2008 McGraw-Hill Ryerson Limited Section 7.3 Nuclear Reactions • MHR 137


! of !7 14

6. I can compare fission and fusion

4. How many unpaired electrons are present in a nitrogen atom?

" A. 2 B. 3 C. 5 D. 7 !

Use the following Lewis diagram to answer the next 2 questions.

" 5. Which of the following is represented by x : x ?

A. a noble gas B. an alkali metal C. a diatomic molecule D. an alkaline earth metal !

6. Which of the following products could be formed from the two molecules represented above?

A. water B. neon gas C. carbon dioxide D. hydrogen fluoride !!7. How many lone pairs and bonding pairs of electrons surround the central oxygen atom in a Lewis diagram of water? !

!8. Coffee has a pH of 5. Which of the following shows the correct colour of each pH indicator when a small amount of black coffee is tested? !

Use the following information to answer the next question. !A student is given four test tubes. He is asked to determine whether the substance in each test tube is acidic, basic or neutral. He makes the following observations:

Lone Pairs Bonding Pairs

A 1 1

B 1 2

C 2 1

D 2 2

pH Indicator Test Tube 1 Test Tube 2 Test Tube 3 Test Tube 4

red litmus no colour change turns blue no colour change no colour change

blue litmus turns red no colour change no colour change turns red

phenolphthalein no colour change turns pink no colour change no colour change

! of !8 14

9. Which of the following conclusions is supported by the observations? A. Test Tube 1 is basic B. Test Tube 2 is neutral. C. Test Tube 3 is acidic. D. Test Tube 4 is acidic. !

10. Which of the following is most likely to cause blue litmus paper to turn red? A. soap B. table salt C. lemon juice D. oven cleaner ! !

Use the following information to answer the next question. !

11. Which of the following could be the "liquid alkali" that was poured into the Grand Canal? A. HCl B. H2O C. NaCl D. NaOH !

12. What is the name of the compound HCN in an aqueous solution? A. cyanous acid B. hydrocyanic acid C. hydrogen (I) cyanide D. hydrogen carbon nitride !

13. Which of the following is a representation for acetic acid? !

" A. I only B. I and II only C. I, III, and IV only D. II, III and IV only !

14. How many atoms of each of the following elements are present in the compound copper (II) phosphate?

Sulphuric Acid Spill Threatens China's 900-Year-Old Grand Canal !Beijing -- Chinese officials attempted to head off an environmental disaster after a ship capsized, dumping 220 tons of sulphuric acid into the country's 900-year-old Grand Canal. Three hundred tons of liquid alkali were poured into the water to neutralize the acid, state media reported. !

Adapted from The Vancouver Sun, Saturday, August 5, 2006, page A18.

Copper Phosphorous Oxygen

! of !9 14

!!15. What is the name of the compound MnS2 ?

A. manganese sulphide B. magnesium sulphide C. manganese(II) sulphide D. manganese(IV) sulphide !

16. What is the chemical formula for dinitrogen pentoxide? A. NO B. N2O5 C. N5O2 D. (N2O)5 !

17. Which of the following is an inorganic compound? A. NO2 B. C3H8 C. C6H12O6 D. CH3COOH !

18. What is the coefficient needed in front of O2 in order to balance the following equation? !___ NH4ClO4 → ___ N2 + ___ Cl2 + ___ H2O + ___ O2 !

A. 1 B. 2 C. 3 D. 4 !19. What type of reaction would be expected when sodium phosphate reacts with calcium chloride?

A. synthesis B. combustion C. decomposition D. double replacement !20. Solid zinc reacts with sulphuric acid to produce hydrogen gas. What is the other product that would result from this reaction? !

ZN + H2SO4 → H2 + ___ !A. O2 B. H2S C. H2O D. ZnSO4 !

Use the following article to answer question below. !

A 1 1 4

B 2 1 4

C 3 2 0

D 3 2 8

!Catalytic Converters !

The catalytic converter in a car reduces nitrogen oxide pollution. The converter has a ceramic honeycomb structure plated with platinum and rhodium and is located in the exhaust system close enough to the engine to stay warm. The honeycomb structure provides a large surface area over which the exhaust gases can react. As the gases from the car engine are channeled through the warm honeycomb, the metals remove the oxygen from the nitrogen monoxide (NO) molecules and the oxygen atoms form Othe metal combine with others, forming N2NO → O2

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21. Which of the following are used to speed up this chemical reaction?

A. I only B. I and II only C. II and III only D. I, II and III !!Use the following illustration showing the nucleus of an Rb-87 atom to answer the next

question.

" !22. What process is illustrated above? A. a nuclear reaction producing a beta particle B. a nuclear reaction producing an alpha particle C. a chemical change producing a hydrogen atom D. a nuclear fusion reaction producing two new elements !23. Which of the following is a concern when nuclear energy is used to produce electricity? A. Nuclear waste material has a very short half-life. B. Nuclear energy does not produce a lot of electricity C. An accident at a reactor could release a large amount of radioactivity. D. Radioactivity emitted during normal operation of a reactor can harm workers or those living

nearby. !Use the following cartoon to answer the next question.

24. What element was formed during the first decay of uranium-238? A. lead-206 B. radium-226 C. thorium-234 D. uranium-234 !

I a catalyst

II increased temperature

III increased surface area

At the home for old atoms… -------------------------------------------

" "When I was young I used to feel so alive and dangerous! Would you believe I started life as a uranium-238? Then one day I accidentally emitted an alpha particle. Now look at me -- an old atom of lead-206. It seems that all my life since then has been nothing but decay, decay, decay…"

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!25. Which of the following reactions would produce a proton? !A. "

B. "

C. "

D. "

!26. Which two of the following atomic models represents elements that can easily combine with each other to form a covalent compound? !

" A. I and II B. I and IV C. II and III D. III and IV !27. Which of the following Lewis diagrams shows the valence electron arrangement for carbon? A. ! B. ! C. ! D. !!Use the following Lewis diagrams of four unknown elements to answer the next question.

" 28. Which element will not combine with oxygen? A. J B. K C. L D. M !!!!!!!

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29. Which of the following represents the Lewis diagram of the molecule formed in the reaction shown below?

"

A. !! B. ! C. ! D. !!!

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Provincial exam practice question Answers Unit 2 - Chemistry ! !1. D

2. C

3. B

4. B

5. C

6. D

7. D

8. A

9. D

!!!!!!!!!!!!!!!!!!!!!!

10. C

11. D

12. B

13. C

14. D

15. D

16. B

17. A

18. B

19. D

!!!!!!!!!!!!!!!!!!!!!

20. D

21. D

22. A

23. C

24. C

25. C

26. D

27. B

28. D

29. C

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Knowledge, understanding and skills with references to the ... · e. More practice? CYU Q. 10 p. 243 Be able to identify organic and inorganic compounds a. Identify the following