Student Instructions

1. Ensure that you have blank paper and a Data Booket..

2. Record all aswers on a separate piece of paper.

3. Answer keys are provided at the beginning of each section.

4. When you have finished with this Study Booklet please return it to your teacher.

Assessment Department (Issued September 2004) - 15 - Science 10 – Sample Questions

D. PHYSICALSCIENCE

(Chemical andReactions)

10D2 – describe the arrangement of subatomic particles (electrons, protons,neutrons) in elements

∑ Bohr Model of elements 1 to 20

Knowledge Prescribed Learning Outcomes – 10D2

Use the following diagram to answer question 31.

Diagram of an atom

X Y

31. Which of the following is correct?

SubatomicParticle

Location inthe Atom

Charge of theParticle

A. Proton X negative

B. Electron Y negative

C. Neutron Y no charge

D. Proton X no charge

Assessment Department (Issued September 2004) - 16 - Science 10 – Sample Questions

Understanding Prescribed Learning Outcomes – 10D2

Use the following information to answer question 32.

45

?21

? represents the symbol of the element

32. Which of the following is the name and sub-atomic particle arrangement for a neutral atom ofthe element?

Element Sub-Atomic Particles

A. Scandium 24 neutrons, 21 electrons

B. Scandium 21 neutrons, 24 protons

C. Rhodium 45 protons, 24 neutrons

D. Rhodium 45 protons, 45 electrons

Higher Mental Processes Prescribed Learning Outcomes – 10D2, 10E1

33. A new element Xg has been recently discovered. It forms compounds with thefollowing formulæ:

XgCl2, XgF and XgN

What are the likely ion charges for Xg?

A. +2, –2B. +1, +2C. +1, +2, +3D. +1, +2, +3, –1, –2, –3

Assessment Department (Issued September 2004) - 17 - Science 10 – Sample Questions

D. PHYSICALSCIENCE

(Chemical andReactions)

10D3 – distinguish among atoms, isotopes, and ions

Knowledge Prescribed Learning Outcomes – 10D3

REFER TODATA BOOKLET

Use The Periodic Table on page 3 of the Data Bookletto answer question 34.

34. Which of the following is a common characteristic of the outermost shell ofan alkali metal atom?

A. 1 electronB. 2 electronsC. 7 electronsD. 8 electrons

Assessment Department (Issued September 2004) - 18 - Science 10 – Sample Questions

Understanding Prescribed Learning Outcomes – 10D3

REFER TODATA BOOKLET

Use The Periodic Table on page 3 of the Data Bookletto answer questions 35 to 39.

Chlorine-35

For the above isotope, match each Term on the left withthe correct Number on the right. Each Number may be used as often as necessary.

Record your answers on the Response Form.

Term Number

35. atomic number

36. number of neutrons

37. number of electrons in the most common ion

38. ion charge

39. number of shells occupied by electrons for the atom

A. –1

B. 17

C. 16

D. 3

E. 35

F. 18

Answers

35. A B C D E F 38. A B C D E F

36. A B C D E F 39. A B C D E F

37. A B C D E F

Assessment Department (Issued September 2004) - 19 - Science 10 – Sample Questions

Higher Mental Processes Prescribed Learning Outcomes – 10D3

40. The atomic mass of tellurium is greater than that of iodine. Which of the following bestexplains this?

A. Iodine has one less proton than tellurium.B. Tellurium has one less proton than iodine.C. The naturally occurring isotopes of iodine have fewer neutrons than those of tellurium.D. The naturally occurring isotopes of tellurium have fewer neutrons than those of iodine.

D. PHYSICALSCIENCE

(Chemical andReactions)

10D5 – demonstrate a knowledge of chemical formulæ and balancedchemical equations

∑ including ionic and covalent compounds∑ including writing names, formulæ, and balanced equations

Knowledge Prescribed Learning Outcomes – 10D5

Use the following equation to answer question 41.

2H O 2H O2 2 2Æ +

41. In this equation, O2 represents 2 molecules of oxygen.

A. TrueB. False

Higher Mental Processes Prescribed Learning Outcomes – 10D3, 10D5, 10D6

Use the following equation to answer question 42.

Fe CuSO FeSO Cu4 4+ Æ +

42. Which statement is supported by the equation above?

A. Iron gains electrons.B. Copper loses electrons.C. Copper gains electrons.D. Copper and iron gain electrons.

Assessment Department (Issued September 2004) - 20 - Science 10 – Sample Questions

Understanding Prescribed Learning Outcomes – 10D5

Use the following information to answer question 43.

43. Which of the following statements is correct?

A. The number of atoms in aluminum nitrite is less.B. The number of atoms in copper (II) nitrate is less.C. The number of atoms is equal in both compounds.D. The relationship cannot be determined from the information given.

D. PHYSICALSCIENCE

(Chemical andReactions)

10D6 – give evidence for and classify the following chemical reactions:synthesis, decomposition, replacement, and acid-base

∑ single and double replacement∑ neutralization

Knowledge Prescribed Learning Outcomes – 10D5, 10D6

44. Which of the following is a single replacement reaction?

A. H Cl 2HCl2 2+ Æ

B. 2KClO 2KCl 3O3 2Æ +

C. Mg 2HCl MgCl H2 2+ Æ +

D. AgNO KCl AgCl KNO3 3+ Æ +

Understanding Prescribed Learning Outcomes – 10D6

45. Which of the following diagrams best illustrates the concept of a double replacement reaction?

A. Æ+ B. Æ +

C. + Æ + D. + Æ +

Compound I Compound II

copper (II) nitrate aluminum nitrite

Assessment Department (Issued September 2004) - 21 - Science 10 – Sample Questions

Understanding Prescribed Learning Outcomes – 10D6

Match each Chemical Reaction on the left with the correct Reaction Type on the right.Each Reaction Type may be used as often as necessary.

Record your answers on the Response Form.

Chemical Reaction Reaction Type

46. Ca(OH) 2HCl CaCl 2H 02 2 2+ Æ +

47. 2AgNO Cu 2Ag Cu NO3 3 2+ Æ + ( )

48. 2H 0 2H 0 02 2 2 2Æ +

49. 8Ni S 8NiS8+ Æ

A. synthesis

B. decomposition

C. single replacement

D. neutralization

Answers

46. A B C D E F

47. A B C D E F

48. A B C D E F

49. A B C D E F

Higher Mental Processes Prescribed Learning Outcomes – 10D6

50. Scrap iron metal can be used to inexpensively obtain copper metal from wastecopper sulphate solution.

Which reaction type best describes this procedure?

A. synthesisB. replacementC. neutralizationD. decomposition

PHYSICAL SCIENCE Chemicals and Reactions

REFER TODATA BOOKLET

For this section of the examination, refer to:∑ Names, Formulæ and Charges of Some Common Ions on page 1∑ Alphabetical Listing of the Elements on page 2∑ The Periodic Table on page 3

27. Which of the following best describes the properties of an electron?

Relative Mass Location

A. large in the nucleus

B. large orbiting the nucleus

C. small in the nucleus

D. small orbiting the nucleus

28. Which of the following statements about Li+1 are true?

I Li+1 is a symbol for a lithium ion.

II Li+1 is a symbol for a lithium atom.

III Li+1 has lost one electron.

IV Li+1 has gained one electron.

A. I and IIIB. I and IVC. II and IIID. II and IV

30. OH–1 is an example of an ionic compound.

A. TrueB. False

31. Which of the following represents the Bohr model electron arrangement of an argon atom?

A. 2, 16B. 2, 18C. 2, 8, 6D. 2, 8, 8

32. Noble Gases react easily with other elements.

A. TrueB. False

33. Which of the following is represented by the Bohr model below?

8p8n

A. an atom of neonB. an ion of oxygenC. a molecule of oxygenD. a neutral atom of oxygen

29. Cl2 is an example of a diatomic molecule.

A. TrueB. False

- 14 -

34. Which of the following is the Bohr model for a nitrogen atom?

A.

7p

7n3e 4e

B.

7p

7n2e 8e

C.

7p

7n2e 5e

D.

7p

7n2e 7e

35. Covalent bonding involves the of electrons, while ionic bondinginvolves the of electrons.

A. sharing; splittingB. exchanging; sharingC. sharing; transferringD. transferring; sharing

- 15 -

Use the information below to answer question 36.

23

?11

? represents the symbol of the element

36. Which of the following describes a neutral atom of the element?

Element Sub-atomic particles

A. Sodium 11 electrons, 12 neutrons

B. Sodium 23 neutrons, 11 protons

C. Vanadium 12 neutrons, 23 protons

D. Vanadium 11 electrons, 11 protons

37. What is the formula for calcium hydroxide?

A. CaOHB. CaOH2

C. Ca OH2

D. Ca OH( )2

38. Which of the following represents the molecule formed when hydrogen reacts with nitrogen?

nitrogenhydrogen

A. B.

C. D.

- 16 -

Use the following illustration of a chemical reaction to answer questions 39 and 40.

magnesium ribbon(Mg)

gas bubblestest tube

water

unknown gas

hydrochloric acid(HCl)

39. What are the reactants in the demonstration above?

A. Mg and O2

B. Mg and H2

C. Mg and H O2

D. Mg and HCl

40. What gas is collected in the test tube?

A. O2

B. H2

C. Cl2

D. MgH2

- 17 -

41. Which of the following correctly balances the equation?

K CO Ba NO KNO BaCO2 3 3 2 3 3+ ( ) Æ +

A. KNO BaCO3 3+B. KNO 2BaCO3 3+C. 2KNO BaCO3 3+D. 2KNO BaCO3 3+ 2

Match each Chemical Reaction on the left with the correct Reaction Typeon the right. Each Reaction Type may be used as often as necessary.

Record your answers on the Answer Sheet.

Chemical Reaction Reaction Type

42. 2KI Pb NO PbI 2KNO3 2 2 3+ ( ) Æ +

43. Mg 2HCl H MgCl2 2+ Æ +

44. 2K Cl 2KCl2+ Æ

A. synthesis

B. decomposition

C. single replacement

D. double replacement

E. neutralization (acid/base)

45. Which of the following equations are balanced?

I 2KCl Ca NO 2KNO CaCl3 2 3 2+ ( ) Æ +

II FeCl 3KOH Fe OH 3KCl3 + Æ ( ) +3

III 2Na H SO Na SO 2H2 4 2 4 2+ Æ +

A. I and IIB. I and IIIC. II and IIID. I, II and III

- 18 -

46. Solid copper wire, Cu, is placed in a colourless, silver nitrate solution, AgNO3 . After

15 minutes, the solution has turned blue and silver crystals have formed. A reference textstates that when dissolved in water:

∑ Cu+2 ions are blue.∑ Ag+ ions are colourless.

∑ NO3– ions are colourless.

Which of the following is the best conclusion?

A. The silver atoms have lost electrons forming ions.B. The copper atoms have lost electrons forming ions.C. The silver atoms have gained electrons forming ions.D. The copper atoms have gained electrons forming ions.

47. Which of the following is the symbol for boron with a mass number of 11?

A. 113B

B. 115B

C. 311B

D. 511B

48. Which of the following explains the difference between the atoms of Cobalt-60 andCobalt-58?

A. Cobalt-60 has 2 fewer protons.B. Cobalt-60 has 2 more neutrons.C. Cobalt-60 has 2 more electrons.D. Cobalt-58 and 60 have the same number of neutrons.

Science 10 – 2004 Released Examination

INSTRUCTIONS: For each question, select the best answer and record your choice on a separatepiece of paper.

PHYSICAL SCIENCE Chemicals and Reactions

REFER TODATA BOOKLET

For this section of the examination, refer to:∑ Names, Formulæ and Charges of Some Common Ions on page 1∑ the Alphabetical Listing of the Elements on page 2∑ the Periodic Table of the Elements on page 3

29. Which atom has 28 protons?

A. nickelB. siliconC. fluorineD. chromium

30. Consider the following diagram.

9p10n

This element has a mass number of 19.

A. TrueB. False

Use the following information to answer question 33.

9

? 4

? represents the symbol of the element

33. Which of the following describes a neutral atom of the element?

Element Sub-Atomic Particles

A. Beryllium 9 electrons, 4 protons

B. Beryllium 4 electrons, 5 neutrons

C. Fluorine 4 electrons, 4 protons

D. Fluorine 9 neutrons, 9 protons

Use the following information to answer question 34.

A new element Xn has recently been discovered. It forms compounds withthe following formulae:

Xn PO XnCl , Xn MnO3 4 2 4 2, ( )

34. Xn has more than one ion charge (combining capacity).

A. This statement is supported by the information.B. This statement is refuted by the information.C. This statement is neither supported nor refuted by the information.

31. Which atom will produce an ion with 33 protons, 42 neutrons and 36 electrons?

A. arsenicB. kryptonC. rheniumD. molybdenum

32. Which neutral atom has 6 neutrons and 6 electrons?

A. boronB. carbonC. heliumD. magnesium

Science 10 – 2004 Released Examination

35. A neutral atom has the same number of protons as electrons.

A. TrueB. False

36. How many electrons are in the outer shell of an argon atom?

A. 1B. 2C. 7D. 8

37. Which of the following statements about Cl–1 are true?

I It symbolizes an ion.

II It symbolizes an atom.

III Chlorine has lost one electron.

IV Chlorine has gained one electron.

A. I and III onlyB. I and IV onlyC. II and III onlyD. II and IV only

38. Which of the following represents the Bohr model for a carbon atom?

A.6p6n 42

B.6p6n 6 6

C.

6p6n 2 4 6

D.

6p6n 2 8 2

Science 10 – 2004 Released Examination

39. The formula S8 represents a diatomic molecule.

A. TrueB. False

40. The formula ClO3-1 represents an ion.

A. TrueB. False

41. Which of the following is the formula for the compound formed by potassium and phosphorus?

A. KP

B. K P2

C. KP3

D. K P3

NH SO4 2 4( )

For the chemical compound ammonium sulphate, match the Element on the left with theNumber of Atoms on the right. Numbers of Atoms may be used as often as necessary.

Reminder: Record your answers on the Response Form.

Element Number of Atoms

42. hydrogen

43. oxygen

A. 1

B. 2

C. 4

D. 8

44. The formula MgCl2 represents an ionic compound.

A. TrueB. False

Science 10 – 2004 Released Examination

45. Which of the following is the formula for the compound formed by calcium and bromine?

A. CaBr

B. Ca Br2

C. CaBr2D. Ca Br2 2

46. Which one of the following chemical equations is balanced?

A. 2Al O Al O2 2 3+ ÆB. 3Al O Al O3 2 3+ ÆC. 3Al O Al O2 2 3+ Æ3

D. 4Al O Al O2 2 3+ Æ3 2

47. Which of the following equations are balanced?

I 2Ca O CaO2+ Æ 2

II 2CO O 2CO2 2+ Æ

III H Cl 2HCl2 2+ Æ

A. I and II onlyB. I and III onlyC. II and III onlyD. I, II and III

48. In what type of chemical reaction does an element take the place of one of theelements in a compound?

A. synthesisB. neutralizationC. decompositionD. single replacement

49. Which of the following represents a decomposition reaction?

A. S O SO2 2+ ÆB. 2Fe O 4Fe + 3O2 3 2ÆC. FeS HCl FeCl H S2 2+ Æ +2

D. 2Al Fe O Al O 2Fe2 3 2 3+ Æ +

Science 10 – 2004 Released Examination

Match each Chemical Reaction on the left with the best Name of the Reaction on the right.Each Name of the Reaction may be used as often as necessary.

Reminder: Record your answers on the Response Form.

Chemical Reaction Name of the Reaction

50. 4K O K O2+ Æ 2 2

51. BaS 2HBr BaBr H S2 2+ Æ +

A. synthesis

B. neutralization

C. decomposition

D. single replacement

E. double replacement

Use the following information to answer question 52.

H SO 2NaOH Na SO 2H 02 4 2 4 2+ Æ +

52. Which of the following statements are true?

I H SO2 4 is an acid.

II Na SO2 4 is a base.

III This is a neutralization reaction.

IV The products of this reaction are a salt and water.

A. I, II and III onlyB. I, II and IV onlyC. I, III and IV onlyD. II, III and IV only

© 2005 Province of British Columbia. All rights reserved. Page 11

PHYSICAL SCIENCE Chemicals and Reactions

REFER TODATA BOOKLET

For this section of the examination, refer to:∑ Names, Formulæ and Charges of Some Common Ions on page 1∑ Alphabetical Listing of the Elements on page 2∑ The Periodic Table on page 3

31. The nucleus of an atom contains electrons, protons and neutrons.

A. TrueB. False

32. Which atom will produce an ion with 21 protons, 24 neutrons and 18 electrons?

A. argonB. rhodiumC. scandiumD. chromium

Use the following information to answer question 33.

27

?13

? represents the symbol of the element

33. Which of the following is true about the neutral atom of the element?

I The element is cobalt.

II The element has 27 protons.

III The element has 14 neutrons.

IV The element has 13 electrons.

A. I and II onlyB. III and IV onlyC. I, II and IV onlyD. I, II, III and IV

INSTRUCTIONS: For each question, select the best answer and record your choice on a separate piece of paper.

Page 12 © 2005 Province of British Columbia. All rights reserved.

34. In which of the following compounds does iron have the same ion charge(combining capacity)?

I FeS

II Fe OH( )2

III FeCrO4

IV Fe CO2 3 3( )

A. I and II onlyB. I, II and III onlyC. II, III and IV onlyD. I, II, III and IV

35. Which neutral atom has 22 neutrons and 18 electrons?

A. argonB. titaniumC. berylliumD. zirconium

36. Which of the following statements about Be2+ are true?

I It symbolizes an ion.

II It symbolizes an atom.

III Beryllium has lost electrons.

IV Beryllium has gained electrons.

A. I and III onlyB. I and IV onlyC. II and III onlyD. II and IV only

© 2005 Province of British Columbia. All rights reserved. Page 13

37. Different isotopes of an element have different numbers of neutrons.

A. TrueB. False

38. Carbon-12 and Carbon-14 have the same number of protons.

A. TrueB. False

39. Which of the following represents the Bohr model for an oxygen atom?

A. 8p8n 8

B.8p8n 8 8

C.8p8n 4 4

D.8p8n 2 6

40. Halogens do not combine easily with metals.

A. TrueB. False

41. The formula P4 represents a polyatomic ion.

A. TrueB. False

Page 14 © 2005 Province of British Columbia. All rights reserved.

42. What is the formula for lithium oxide?

A. LiO

B. Li O2

C. LiO2

D. Li O2 2

43. What is the chemical formula for chromium (III) nitrite?

A. Cr NO3 2

B. Cr NO3( )3

C. Cr NO2( )3

D. Cr NO3( )3

44. What is the name of the compound Sn SO4 2( ) ?

A. tin sulphate

B. tin (I) sulphate

C. tin (II) sulphate

D. tin (IV) sulphate

45. Nitrogen trihydride is a covalent compound.

A. TrueB. False

46. The formula KMnO4 represents a covalent compound.

A. TrueB. False

© 2005 Province of British Columbia. All rights reserved. Page 15

For the chemical compound hydrogen chlorate, matchthe Element on the left with the Number of Atoms on the right.

HClO3

Element Number of Atoms

47. oxygen

48. chlorine

A. 1

B. 2

C. 3

D. 5

Use the following diagram to answer question 49.

calcium metal(Ca)

gas bubblestest tube

water

unknown gas

hydrochloric acid(HCl)

49. What is the balanced equation for the reaction?

A. Ca Cl CaCl2 2+ Æ

B. Ca 2HCl H CaCl2 2+ Æ +

C. Ca 2HCl CaH Cl2 2+ Æ +

D. 2Ca H O O CaH2 2 2+ Æ +2 2

Page 16 © 2005 Province of British Columbia. All rights reserved.

50. Which of the following represents a decomposition reaction?

A. H Cl 2HCl2 2+ ÆB. 2KClO 2KCl + 3O3 2ÆC. Ca 2HCl CaCl H2 2+ Æ +D. AgNO KCl AgCl KNO3 3+ Æ +

Match each Chemical Reaction on the left with the best Reaction Type on the right.Each Reaction Type may be used as often as necessary.

Chemical Reaction Reaction Type

51. HCl NaOH NaCl H O2+ Æ +

52. Mg NO 2NaOH 2NaNO Mg OH3 2 3 2( ) + Æ + ( )

53. 2Al Fe O Al O 2Fe2 3 2 3+ Æ +

A. synthesis

B. neutralization

C. decomposition

D. single replacement

E. double replacement