Honors Chemistry - 1st Semester Final Practice ExamMr. Matthew Totaro

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

1) Which statement about the scientific method is TRUE?A) The scientific method emphasizes observation and experimentation as the way to understand the world.B) The scientific method emphasizes observation and reason as the way to understand the world.C) The scientific method emphasizes reason as the way to understand the world.D) The scientific method emphasizes scientific laws as the way to understand the world.E) All of the above statements are false.

2) You are heating a piece of glass and now want to pick it up. You should

A) use tongs. B) pick up the end that looks cooler.C) pour cold waler on it. D) use a rag or paper towels.

3) Use the graph to answer the following question.

How many players on the team have a batting average between .300 - .399?

A) 7 B) 1 C) 5 D) 9

4) The number 680 000 000 expressed correctly using scientific notation is __________.A) 6.8 B) 68 × 107 C) 0.68 × 106 D) 680 × 106 E) 6.8 × 108

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5) The correct decimal representation of 6.453 x 103 is:A) 6.453B) 6.5 x 103

C) 6,453D) 0.006453E) none of the above

6) Which of the following numbers is the largest?A) 4.0 × 10-8 B) 4.0 × 10-12 C) 4.0 × 10-2 D) 4.0 × 10-6 E) 4.0 × 10-15

7) Perform the following operation: (1.25 x 102) + (4.25 x 103) =

A) 5.50 x 10-1 B) 4.375 x 103 C) 5.50 x 10-1 D) 5.50 x 105

8) Perform the following operation: (1.02 x 105) x (2.00 x 102) =

A) 2.04 x 107 B) 2.04 x 1010 C) 2.04 x 103 D) 3.02 x 107

9) How many inches are in 25.8 cm ( 1 inch = 2.54 cm)?A) 28.3B) 0.0984C) 10.2D) 0.10E) none of the above

10) How many milliliters are in 17.5 L?A) 175B) 1.75 x 10-2

C) 1.75 x 103

D) 1.75 x 104

E) none of the above

11) How many microliters are in 41.0 mL?A) 0.041B) 4.1 x 103

C) 4.10 x 104

D) 4.1 x 1010

E) none of the above

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12) Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of 10.0 cm x4.00 cm x 3.00 cm.

A) 0.161B) 2.32 x 103

C) 3.80 x 104

D) 102E) none of the above

13) Suppose a boat engine leaks 938 milliliters of oil into a lake. The mass of this spilled oil is 823 grams. The oilwill not mix with the lake water. Which statement is true?

A) The oil will float because its density of 0.877 g/mL is less than the density of water.B) The oil will sink because its density of 0.877 g/mL is greater than the density of water.C) The oil will float because its density of 1.14 g/mL is less than the density of water.D) The oil will sink because its density of 1.14 g/mL is greater than the density of water.E) none of the above

14) The correct prefix for the multiplier 1,000is:A) nano.B) kiloC) mega.D) micro.E) none of the above

15) The correct multiplier for the prefix pico is:A) 0.000000000001B) 0.000001C) 0.001D) 0.000000001E) none of the above

16) In the number 162.581, which digit is estimated?A) 1B) 4C) 8D) 9E) None of the above, all digits are certain.

17) The correct number of significant figures in the number 865,000 is:A) 5B) 6C) 4D) 3E) none of the above

18) The correct number of significant figures in the number 7.9 x 10-4is:A) 1B) 2C) 3D) 4E) none of the above

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19) The correct number of significant figures in the number 0.0012320 is:A) 4B) 7C) 3D) 5E) none of the above

20) Determine the answer for the equation below with correct number of significant figures:1.2 x 1.79 = ________

A) 2.15B) 2.2C) 2.148D) 2.1E) none of the above

21) Determine the answer to the following equation with correct number of significant figures:(17.103 + 2.03) x 1.02521 = ________

A) 19.6B) 20C) 19.61D) 19.6153E) none of the above

22) How many significant digits should be reported in the answer to the following calculation?(4.3 - 3.7) x 12.3 =

A) 3B) 1C) 2D) 4E) none of the above

23) The SI unit of temperature is __________.A) °F B) t C) K D) °C E) T

24) Which of the following statements about matter is FALSE?A) Matter exists in either a solid, liquid or gas state.B) Matter occupies space and has mass.C) Matter is ultimately composed of atoms.D) Matter can be divided an infinite number of times.E) none of the above

25) Which state of matter has atomic spacing that is close together and definite shape?A) plasmaB) solidC) liquidD) gasE) none of the above

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26) Which state of matter has atomic spacing that is far apart and definite shape?A) solidB) plasmaC) gasD) liquidE) none of the above

27) Molten (liquid) iron metal has a(n) ________ volume and a(n) ________ shape.A) indefinite; definiteB) definite; definiteC) definite; indefiniteD) indefinite; indefiniteE) insufficient information given to determine

28) A pure substance is:A) composed of two or more different types of atoms or molecules combined in variable proportions.B) composed of two or more different types of atoms or molecules that has constant composition.C) composed of only one type of atom or molecule.D) composed of two or more regions with different compositions.E) none of the above

29) Which of the following items is a mixture?A) heliumB) brassC) waterD) sugarE) none of the above

30) How would you classify salt water?A) pure substance-elementB) pure substance-compoundC) mixture-heterogeneousD) mixture-homogeneousE) none of the above

31) A solution is an example of a (an)A) heterogeneous mixtureB) compoundC) pure substanceD) elementE) homogeneous mixture

32) Physical properties are:A) those that a substance displays only through changing its composition.B) identical for all solid matter.C) those that cause atoms and molecules to change.D) those that a substance displays without changing its composition.E) none of the above

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33) Which of the following statements about physical and chemical changes is FALSE?A) In a physical change, matter does not change its composition.B) Phase changes are always physical changes.C) Chemical reactions are chemical changes.D) In a chemical change, matter changes its composition.E) All of the above statements are true.

34) What is the value of 335 K on the Celsius temperature scale?A) 66.4B) 167C) 62D) 608E) none of the above

35) What is the value of 98 °F in units of °C?A) 37B) 22C) 371D) 72E) none of the above

36) In the winter, the outdoor temperature is -12°F. What is the temperature in the Kelvin scale?A) 249 K B) 284 K C) 262 K D) 273 K E) 178 K

37) What is the atomic symbol for silver?A) AgB) SC) SiD) AuE) none of the above

38) What is the atomic symbol for tin?A) TiB) TnC) SnD) SiE) none of the above

39) What is the correct chemical symbol for mercury?A) MyB) HmC) HyD) MeE) none of the above

40) Which of the following is NOT a correct name, symbol combination?A) magnesium, MgB) iron, IC) beryllium, BeD) manganese, MnE) silicon, Si

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41) Which of the following is NOT a correct name, symbol combination?A) silicon, SiB) phosphorus, PC) beryllium, BeD) manganese, MgE) iron, Fe

42) Which of the following is NOT a correct name, symbol combination?A) potassium, PB) gold, AuC) calcium, CaD) manganese, MnE) chromium, Cr

43) The names of the elements whose symbols are Si, P, Mn, and S are respectively,A) silicon, phosphorus, magnesium, and sulfur.B) silver, phosphorus, magnesium, and sulfur.C) silicon, potassium, magnesium, and sulfur.D) silicon, phosphorus, manganese, and sulfur.E) silicon, potassium, magnesium, and sodium.

44) Which statement below accurately describes the contributions of Dalton?A) discovered the existence of electronsB) ancient Greek philosopher who proposed that matter was continuousC) proposed the modern Atomic TheoryD) created the modern periodic tableE) none of the above

45) Which of the statements about the discovery of electrons is FALSE?A) The negatively charged electron is located outside the nucleus.B) Because atoms are neutral, the existence of a negatively charged particle implied there must be a

positively charged component of an atom.C) Rutherford proved the plum-pudding model correct.D) Thomson proposed that electrons were small particles held within a positively charged sphere.E) All of the above statements are true.

46) The Rutherford gold foil experiment demonstrated that atomsA) are homogeneous.B) consist of an almost empty nucleus surrounded by a dense cloud of electrons.C) are visible to the naked eye.D) consist of a dense nucleus surrounded by mostly empty space.E) consist of a single type of subatomic particle.

47) Which of the following pairs of subatomic particles have charges of equal magnitude but opposite in sign?A) proton and positronB) gamma ray and neutronC) proton and electronD) neutron and protonE) electron and neutron

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48) In an atom, the nucleus contains __________.A) all the protons and electronsB) only protonsC) only neutronsD) all the protons and neutronsE) an equal number of protons and electrons

49) The atomic number of an atom is equal to the number of __________.A) electrons plus protonsB) protonsC) neutronsD) nucleiE) neutrons plus protons

50) The number of neutrons in an atom is equal to the __________.A) atomic numberB) mass number - the atomic numberC) mass numberD) mass number + the atomic numberE) number of protons

51) The mass number of an atom can be calculated from the __________.A) number of electronsB) number of protonsC) number of protons plus neutronsD) number of electrons plus protonsE) number of neutrons

52) The atomic number of fluorine is __________.A) 19 B) 28 C) 29 D) 10 E) 9

53) The atomic mass of lithium is __________.A) 6.94 B) 3.00 C) 7.41 D) 7.00 E) 4.00

54) The correct symbol for the isotope of potassium with 22 neutrons is __________.

A) 4119

K B) 1537

P C) 2219

K D) 3715

P E) 1941

K

55) The correct symbol for a uranium atom with a mass number of 235 is __________.

A) 32792

U B) 23592

U C) 14392

U D) 235 91

U E) 23592

Ur

56) Which of the following is NOT true for the atoms 13N, 14N, and 15N?A) They all have 7 protons.B) They are isotopes.C) They all have the same atomic number.D) They all have the same mass number.E) They all have 7 electrons.

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57) How many electrons are in Br-?A) 7B) 4C) 36D) 34E) none of the above

58) Which of the statements about light is FALSE?A) Light travels much faster than sound.B) A characteristic feature of light that determines its color is its wavelength.C) Light travels through space at a speed of 3.00 × 108 m/s.D) A packet of light energy is called a photon.E) All of the above statements are true.

59) The number of cycles of a wave that passes a stationary point in one second is called itsA) wavelengthB) crestC) frequencyD) troughE) none of the above

60) Which color of the visible spectrum has the longest wavelength (750 nm)?A) yellow B) violet C) orange D) red E) green

61) What is the correct order of the electromagnetic spectrum from shortest wavelength to longest?A) Visible Light Infrared Radiation Microwaves Radio Waves Gamma Rays X-rays Ultraviolet

RadiationB) Gamma Rays X-rays Infrared Radiation Visible Light Ultraviolet Radiation Microwaves Radio

WavesC) Gamma Rays X-rays Ultraviolet Radiation Visible Light Infrared Radiation Microwaves Radio

WavesD) Gamma Rays X-rays Visible Light Ultraviolet Radiation Infrared Radiation Microwaves Radio

WavesE) Radio Waves X-rays Ultraviolet Radiation Visible Light Infrared Radiation Microwaves Gamma

Rays

62) What is the frequency (Hz) of electromagnetic radiation that has a wavelength of 0.53 m?A) 1.8 × 10-9 B) 1.6 × 108 C) 1.3 × 10-33 D) 1.3 × 1033 E) 5.7 × 108

63) The energy of a photon that has a frequency of 8.21 × 1015 Hz is __________ J.A) 8.08 × 10-50 B) 1.26 × 10-19 C) 1.99 × 10-25 D) 5.44 × 10-18 E) 1.24 × 1049

64) What happens to an atom when it absorbs energy?A) The atom re-emits the energy as heat.B) The atom re-emits the energy as light.C) The atom stores the energy for later use.D) The extra energy increases the speed of the electrons in their orbitals.E) none of the above

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65) The atomic orbital depicted below would be found in a ________ sublevel.

A) 6p B) 4f C) 2s D) 3p E) 5d

66) What is the maximum number of electrons that the “f” subshell can hold?A) 14 B) 10 C) 5 D) 6

67) The electron configuration of Ga is __________.A) 1s22s22p63s23p64s24d104p1

B) 1s22s22p63s23p63d104s24p1

C) 1s22s23s23p63d104s24p1

D) [Ar]4s23d11

E) 1s22s22p63s23p63d104s24d1

68) What is the electron configuration for potassium (atomic number 19)?A) 1s2 2s2 2p6 3s2 3p5 3d2

B) 1s2 2s2 2p6 3s2 3p7

C) 1s2 2s2 2p6 3s2 3p 5 4s1

D) 1s2 2s2 2p8 3s2 3p5

E) 1s2 2s2 2p6 3s2 3p6 4s1

69) What element has the electron configuration 1s2 2s2 2p6 3s2 ?A) Be B) Mg C) Ca D) Na E) Si

70) Which of the following electron configurations is incorrect as written?

A) 1s22s22p63s23p6

B) 1s22s22p6

C) 1s22s22p63s23p64s23d104p4

D) 1s22s22p63s2

E) 1s22s22p63s23p63d10

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71) Which electron configuration represents a violation of the Pauli exclusion principle?A)

B)

C)

D)

E)

72) Which of the following denotes an orbital diagram for a boron atom?A)

B)

C)

D)

E)

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73) Which one of the following elements occupies position period 5 and group IIA in the periodic table?A) Y B) Kr C) Ga D) B E) Sr

74) Which of the following element-classification pairings is incorrect?A) Po - halogenB) Th - inner transition metalC) Ar - noble gasD) K - representative elementE) Mo - transition element

75) Which of the following pairs is incorrectly matched?Element Type of Element

A) antimony metalB) nitrogen nonmetalC) arsenic metalloidD) silicon metalloidE) gold metal

76) Which element would be expected to have chemical and physical properties closest to those of fluorine?A) S B) Fe C) O D) Ne E) Cl

77) The abbreviated electron configuration for a boron atom (Atomic number = 5) is __________.A) 1s2 2s2 2p1 B) 1s2 2s2 2p6 C) [H]2s2 2p1 D) [He]2s2 2p1 E) [Ne]2s2 2p1

78) Group IA elements are called:

A) halogens B) alkaline earth metals

C) noble gases D) alkali metals

79) The elements in groups IA, VIIA and VIIIA are called, respectively:

A) alkali metals, halogens, noble gases

B) alkaline earth metals, transition metals, halogens

C) alkali metals, chalcogens, halogens

D) alkaline earth metals, halogens, chalcogens

80) The number of known nonmetals is ________ the number of known metals.

A) about 1/4 that of B) about double

C) about four times greater than D) very small compared to

81) Which of the following element-classification pairings is incorrect?

A) Mo - transition element B) K - representative element

C) Ar - noble gas D) Po - halogen

82) Calcium is a __________ block element.A) d B) s C) f D) g E) p

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83) Sulfur is a __________ block element.A) g B) f C) d D) s E) p

84) One element that has 5 valence electrons is __________.A) carbon B) lithium C) neon D) nitrogen E) sulfur

85) One element that has 7 valence electrons is __________.A) sodium B) bromine C) nitrogen D) oxygen E) phosphorus

86) How many core electrons are in a chlorine atom?A) 17B) 1C) 7D) 10E) none of the above

87) The elements in group IIA of the periodic table all have electron configurations ending in ________.A) p4 B) d4 C) f4 D) p2 E) s2

88) Chlorine and bromine have very similar chemical properties. This is best explained by the fact that bothelements

A) have the same number of valence electrons.B) are in period 3 of the Periodic Table.C) are gases.D) have equal number of protons and electrons.E) none of the above

89) What is the element in which at least one electron is in the d-orbital?A) KB) ScC) CaD) ArE) none of the above

90) The Group 8A(18) elementsA) are liquids at room temperature.B) are good conductors of electricity.C) melt at high temperatures.D) are unreactive.E) react vigorously with water.

91) What is the symbol of the element in Period 4 and Group 2?A) Be B) C C) Ca D) Si E) Mg

92) Which of the following atoms is the largest?A) Na B) Li C) Rb D) K E) Cs

93) Which of the following elements has the highest ionization energy?A) Ca B) Ne C) Cl D) Ba E) Al

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94) Which of the following atoms has the least metallic character?A) Na B) Li C) Cs D) Rb E) K

95) Of the atoms below, __________ is the most electronegative.A) Cl B) S C) Rb D) Ca E) Si

96) What is the missing particle? 23190 Th ____ + 231

89 Ac

A) beta particleB) alpha particleC) positronD) gamma particleE) none of the above

97) The isotope 12650

Sn decays to 12651

Sb. What type of radiation does it emit in this process?

A) 10

n B) 42

He C) -10

e D) 0-1

e E)

98) Which of the following nuclides will undergo beta decay to produce 24395 Am?

A) 24796 Cm

B) 24393 Np

C) 24497 Bk

D) 24394 Pu

E) none of the above

99) The half-life of bromine-74 is 25 min. How much of a 4.0 mg sample is still active after 75 min?A) 4.0 mg B) 1.0 mg C) 2.0 mg D) 0.25 mg E) 0.50 mg

100) When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a greatamount of energy. This nuclear process is called __________.

A) fissionB) fusionC) chain reactionD) ionizationE) decomposition

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Answer KeyTestname: HONORS CHEMISTRY - 1ST SEMESTER FINAL EXAM PRACTICE TEST

1) A2) A3) C4) E5) C6) C7) B8) A9) C

10) D11) C12) B13) A14) B15) A16) A17) D18) B19) D20) D21) C22) B23) C24) D25) B26) E27) C28) C29) B30) D31) E32) D33) E34) C35) A36) A37) A38) C39) E40) B41) D42) A43) D44) C45) C46) D47) C48) D49) B50) B

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Answer KeyTestname: HONORS CHEMISTRY - 1ST SEMESTER FINAL EXAM PRACTICE TEST

51) C52) E53) A54) A55) B56) D57) C58) E59) C60) D61) C62) E63) D64) B65) E66) A67) B68) E69) B70) E71) E72) E73) E74) A75) A76) E77) D78) D79) A80) A81) D82) B83) E84) D85) B86) D87) E88) A89) B90) D91) C92) E93) B94) B95) A96) C97) D98) D99) E

100) A16