(Test Bank) Chemistry: The Central Science

Brown,Lemay,Bursten,Murphy,Woodward,Stoltzfus, 11

Chemistry

Test Bank

11th Edition

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Author(s): Brown, Lemay, Bursten, Murphy, Woodward, Stoltzfus

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1 Chemistry, 11e (Brown) Chapter 1: Introduction: Matter and Measurement Multiple Choice and Bimodal 1) Solids have a shape and are not appreciably . A) definite, compressible B) definite, incompressible C) indefinite, compressible D) indefinite, incompressible E) sharp, convertible Answer: A Diff: 1 Page Ref: Sec. 1.2 2) is the chemical symbol for elemental sodium. A) S B) W C) So D) Na E) Sn Answer: D Diff: 1 Page Ref: Sec. 1.2 3) If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) . A) heterogeneous mixture B) element C) homogeneous mixture D) compound E) mixture of elements Answer: D Diff: 4 Page Ref: Sec. 1.2 4) The symbol for the element potassium is . A) Pt B) P C) K D) S E) Ca Answer: C Diff: 1 Page Ref:Sec. 1.2 5) The symbol for the element magnesium is . A) Rb B) Mn C) Ne D) Si E) Mg Answer: E Diff: 1 Page Ref:Sec. 1.2 6) The initial or tentative explanation of an observation is called a(n) . A) law B) theory C) hypothesis D) experiment E) test Answer: C Diff: 2 Page Ref:Sec. 1.3 2 7) A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n) . A) law B) theory C) hypothesis D) experiment E) test Answer: A Diff: 2 Page Ref:Sec. 1.3 8) A separation process that depends on differing abilities of substances to form gases is called . A) filtration B) solvation C) distillation D) chromatography E) all of the above are correct Answer: C Diff: 3 Page Ref:Sec. 1.3 9) The SI unit for mass is . A) kilogram B) gram C) pound D) troy ounce E) none of the above Answer: A Diff: 1 Page Ref:Sec. 1.4 10) A one degree of temperature difference is the smallest on the A) Kelvin B) Celsius C) Fahrenheit D) Kelvin and Celsius E) Fahrenheit and Celsius Answer: C Diff: 3 Page Ref:Sec. 1.4 temperature scale. 11) A common English set of units for expressing velocity is miles/hour. The SI unit for velocity is ? A) km/hr B) km/s C) m/hr D) m/s E) cm/s Answer: D Diff: 3 Page Ref:Sec. 1.4 3 12) The unit of force in the English measurement system is 1b • ft . The SI unit of force is the Newton, which is s2 in base SI units. A) g • cm s2 B) kg • m hr2 C) kg • m s2 D) g • m s2 E) g • cm s Answer: C Diff: 4 Page Ref:Sec. 1.4 13) Momentum is defined as the product of mass and velocity. The SI unit for momentum is ? A) kg • m s B) kg • m hr C) g • m s D) g • km s E) kg • km hr Answer: A Diff: 4 Page Ref:Sec. 1.4 14) The SI unit of temperature is . A) K B) °C C) °F D) t E) T Answer: A Diff: 2 Page Ref:Sec. 1.4 15) The temperature of 25°C is in Kelvins. A) 103 B) 138 C) 166 D) 248 E) 298 Answer: E Diff: 1 Page Ref:Sec. 1.4 4 16) The freezing point of water at 1 atm pressure is . A) 0°F B) 0 K C) 0°C D) -273°C E) -32°F Answer: C Diff: 2 Page Ref:Sec. 1.4 17) A temperature of 400 K is the same as °F. A) 261 B) 286 C) 88 D) 103 E) 127 Answer: A Diff: 2 Page Ref:Sec. 1.4 18) A temperature of K is the same as 63°F. A) 17 B) 276 C) 290 D) 29 E) 336 Answer: C Diff: 2 Page Ref:Sec. 1.4 19) 1 nanometer = A) 1000 B) 0.1 C) 0.01 D) 1 E) 10 Answer: A Diff: 2 Page Ref:Sec. 1.4 picometers 20) 1 picometer = centimeters A) 1 × 1010 B) 1 × 10−10 C) 1 × 108 D) 1 × 10−8 E) 1 × 10−12 Answer: B Diff: 2 Page Ref:Sec. 1.4 21) 1 kilogram = milligrams A) 1 × 10−6 B) 1,000 C) 10,000 D) 1,000,000 E) none of the above Answer: D Diff: 2 Page Ref:Sec. 1.4 5 Guru 24) The density (in g/cm3 ) of a gold nugget that has a volume of 1.68 cm3 and a mass of 32.4 g is . 22) "Absolute zero" refers to . A) 0 Kelvin B) 0° Fahrenheit C) 0° Celsius D) °C + 9/5(°F - 32) E) 273.15°C Answer: A Diff: 1 Page Ref:Sec. 1.4 23) An object will sink in a liquid if the density of the object is greater than that of the liquid. The mass of a sphere is 9.83 g. If the volume of this sphere is less than cm3 , then the sphere will sink in liquid mercury (density = 13.6 g/cm3 ). A) 0.723 B) 1.38 C) 134 D) 7.48 E) none of the above Answer: A Diff: 3 Page Ref:Sec. 1.4 volume of A) 0.171 B) 644 C) 10.5 D) 0.00155 E) 5.84 Answer: E cm3 . Diff: 2 Page Ref:Sec. 1.4 26) The density of silver is 10.5 g/cm3 . A piece of silver that occupies a volume of 23.6 cm3 would have a mass of g. A) 248 B) 0.445 C) 2.25 D) 112 E) 23.6 Answer: A Diff: 2 Page Ref:Sec. 1.4 25) The density of silver is 10.5 g/cm3 . A piece of silver with a mass of 61.3 g would occupy a A) 0.0519 B) 19.3 C) 54.4 D) 0.0184 E) 32.4 Answer: B Diff: 1 Page Ref:Sec. 1.4 6 A) 6.75 × 10−3 B) 3.45 C) 148 D) 6.75 × 103 E) 34.5 Answer: B Diff: 3 Page Ref:Sec. 1.4 Guru 27) A certain liquid has a density of 2.67 g/cm3 . 1340 g of this liquid would occupy a volume of L. A) 1.99 × 10−3 B) 50.2 C) 3.58 D) 35.8 E) 0.502 Answer: E Diff: 2 Page Ref:Sec. 1.4 28) A certain liquid has a density of 2.67 g/cm3 . 30.5 mL of this liquid would have a mass of Kg. A) 81.4 B) 11.4 C) 0.0875 D) 0.0814 E) 0.0114 Answer: D Diff: 2 Page Ref:Sec. 1.4 29) Osmium has a density of 22.6 g/cm3 . The mass of a block of osmium that measures 1.01 cm × 0.233 cm × 0.648 cm is g. 30) 3.337 g/cm3 = A) 3.337 × 10−9 B) 3.337 × 10−5 C) 3337 D) 0.3337 E) 333.7 Answer: C Diff: 2 Page Ref:Sec. 1.4 kg/cm3 31) The number 0.00430 has significant figures. A) 2 B) 3 C) 5 D) 6 E) 4 Answer: B Diff: 1 Page Ref:Sec. 1.4 7 Guru A) 2.40 × 104 B) 3.72 × 106 C) 2.40 D) 3.72 E) 155 Answer: B Diff: 4 Page Ref:Sec. 1.4 32) The number 1.00430 has significant figures. A) 2 B) 3 C) 5 D) 6 E) 4 Answer: D Diff: 1 Page Ref:Sec. 1.4 33) The correct answer (reported to the proper number of significant figures) to the following is . 6.3 × 3.25 = A) 20. B) 20.475 C) 20.48 D) 20.5 E) 21 Answer: A Diff: 2 Page Ref:Sec. 1.4 34) One side of a cube measures 1.55 m. The volume of this cube is cm3 . 35) The length of the side of a cube (in cm) having a volume of 44.4 L is . A) 875 B) 35.4 C) 6.66 D) 66.6 E) 0.354 Answer: B Diff: 4 Page Ref:Sec. 1.4 36) 45 m/s = km/hr A) 2.7 B) 0.045 C) 1.6 × 102 D) 2.7 × 103 E) 1.6 × 105 Answer: C Diff: 2 Page Ref:Sec. 1.4 8 Guru 37) If an object, beginning at rest, is moving at a speed of 700 m/s after 2.75 min, its rate of acceleration (in m/s2 ) is . (Assume that the rate of acceleration is constant.) A) 1.6 × 105 B) 255 C) 193 D) 4.24 E) 1.53 × 104 Answer: D Diff: 4 Page Ref:Sec. 1.4 38) The correct result (indicating the proper number of significant figures) of the following addition is . 12 1.2 0.12 + 0.012 A) 13 B) 13.3 C) 13.33 D) 13.332 E) none of the above Answer: A Diff: 2 Page Ref:Sec. 1.5 39) (0.002843)(12.80184) = 0.00032 A) 113.73635 B) 113.736 C) 113.74 D) 113.7 E) 1.1 × 102 Answer: E Diff: 3 Page Ref:Sec. 1.5 40) The correct result of the molecular mass calculation for H2SO 4 is . 4 × 15.9994 + 32.066 + 2 × 1.0079 A) 98.08 B) 98.079 C) 98.074 D) 98.838 E) 98.84 Answer: B Diff: 3 Page Ref:Sec. 1.5 9 Answer: B Diff: 1 Page Ref:Sec. 1.5 43) There should be significant figures in the answer to the following computation. (10.07 + 7.395) 2.5 A) 1 B) 2 C) 3 D) 4 E) 5 41) The volume of a regular cylinder is V = πr2h . Using the value 3.1416 for the constant π, the volume (cm3 ) of a cylinder of radius 2.34 cm and height 19.91 cm expressed to the correct number of significant figures is . A) 342.49471 B) 342.495 C) 342.49 D) 343 E) 342 Answer: E Diff: 4 Page Ref:Sec. 1.5 42) There are significant figures in the answer to the following computation: A) 1 B) 2 C) 3 D) 4 E) 5 (29.2 - 20.0) (1.79 × 105 ) 1.39 Answer: B Diff: 2 Page Ref:Sec. 1.5 44) significant figures should be retained in the result of the following calculation. A) 1 B) 2 C) 3 D) 4 E) 5 (11.13 - 2.6) × 104 (103.05 + 16.9) × 10-6 Answer: B Diff: 2 Page Ref:Sec. 1.5 10 Guru 47) The quantity 1.0 mg/cm2 A)10−4 B) 102 C) 10−6 D) 10−2 E) 104 Answer: D Diff: 2 Page Ref:Sec. 1.6 is the same as 1.0 × kg/m2 . 45) The output of a plant is 4335 pounds of ball bearings per week (five days). If each ball bearing weighs 0.0113 g, how many ball bearings does the plant make in a single day? (Indicate the number in proper scientific notation with the appropriate number of significant figures.) A) 3.84  105 B) 7.67  104 C) 867 D) 3.84  107 E) 2.91  106 Answer: D Diff: 4 Page Ref:Sec. 1.6 46) The density of mercury is 13.6 g/cm3 . The density of mercury is kg/m3 . A) 1.36  10-2 B) 1.36  104 C) 1.36  108 D) 1.36  10-5 E) 1.36  10-4 Answer: B Diff: 4 Page Ref:Sec. 1.6 48) The quantity m is the same as 3 km. A) 3000 B) 300 C) 0.003 D) 0.03 E) 30 Answer: A Diff: 2 Page Ref:Sec. 1.6 49) There are ng in a pg. A) 0.001 B) 1000 C) 0.01 D) 100 E) 10 Answer: A Diff: 2 Page Ref:Sec. 1.6 11 52) In the following list, only A) planets B) light C) dust D) elemental phosphorus E) table salt Answer: B Diff: 2 Page Ref:Sec. 1.1 is not an example of matter. Multiple -Choice 50) One edge of a cube is measured and found to be 13 cm. The volume of the cube in m3 is . A) 2.2  10-3 B) 2.2  10-6 C) 2.2 D) 2.2  103 E 2.2  106 Answer: A Diff: 4 Page Ref:Sec. 1.6 51) The density of lead is 11.4 g/cm3 . The mass of a lead ball with a radius of 0.50 mm is g. (Vsphere = 4 r3 / 3) A) 6.0 B) 4.6  10-2 C) 4.6  10-5 D) 6.0  10-3 E) 4.6 Answer: D Diff: 4 Page Ref:Sec. 1.6 53) What is the physical state in which matter has no specific shape but does have a specific volume? A) gas B) solid C) liquid D) salts E) ice Answer: C Diff: 1 Page Ref:Sec. 1.2 54) The law of constant composition applies to . A) solutions B) heterogeneous mixtures C) compounds D) homogeneous mixtures E) solids Answer: C Diff: 1 Page Ref:Sec. 1.2 12 55) A combination of sand, salt, and water is an example of a . A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance E) solid Answer: B Diff: 1 Page Ref:Sec. 1.2 56) Which one of the following has the element name and symbol correctly matched? A) P, potassium B) C, copper C) Mg, manganese D) Ag, silver E) Sn, silicon Answer: D Diff: 1 Page Ref:Sec. 1.2 57) Which one of the following has the element name and symbol correctly matched? A) S, sodium B) Tn, tin C) Fe, iron D) N, neon E) B, bromine Answer: C Diff: 1 Page Ref:Sec. 1.2 58) Which one of the following elements has a symbol that is not derived from its foreign name? A) tin B) aluminum C) mercury D) copper E) lead Answer: B Diff: 2 Page Ref:Sec. 1.2 59) Which one of the following is a pure substance? A) concrete B) wood C) salt water D) elemental copper E) milk Answer: D Diff: 1 Page Ref:Sec. 1.2 60) Which one of the following is often easily separated into its components by simple techniques such as filtering or decanting? A) heterogeneous mixture B) compounds C) homogeneous mixture D) elements E) solutions Answer: A Diff: 3 Page Ref:Sec. 1.2 13 Guru 61) Which states of matter are significantly compressible? A) gases only B) liquids only C) solids only D) liquids and gases E) solids and liquids Answer: A Diff: 1 Page Ref:Sec. 1.2 62) For which of the following can the composition vary? A) pure substance B) element C) both homogeneous and heterogeneous mixtures D) homogeneous mixture E) heterogeneous mixture Answer: C Diff: 2 Page Ref:Sec. 1.2 63) If matter is uniform throughout and cannot be separated into other substances by physical means, it is . A) a compound B) either an element or a compound C) a homogeneous mixture D) a heterogeneous mixture E) an element Answer: B Diff: 2 Page Ref:Sec. 1.2 64) An element cannot . A) be part of a heterogeneous mixture B) be part of a homogeneous mixture C) be separated into other substances by chemical means D) interact with other elements to form compounds E) be a pure substance Answer: C Diff: 2 Page Ref:Sec. 1.2 65) Homogeneous mixtures are also known as . A) solids B) compounds C) elements D) substances E) solutions Answer: E Diff: 1 Page Ref:Sec. 1.2 66) The law of constant composition says . A) that the composition of a compound is always the same B) that all substances have the same composition C) that the composition of an element is always the same D) that the composition of a homogeneous mixture is always the same E) that the composition of a heterogeneous mixture is always the same Answer: A Diff: 1 Page Ref:Sec. 1.2 14 Guru C) incompressibility 70) Of the following, only A) melting of lead B) dissolving sugar in water C) tarnishing of silver D) crushing of stone is a chemical reaction. 67) Which of the following is an illustration of the law of constant composition? A) Water boils at 100°C at 1 atm pressure. B) Water is 11% hydrogen and 89% oxygen by mass. C) Water can be separated into other substances by a chemical process. D) Water and salt have different boiling points. E) Water is a compound. Answer: B Diff: 4 Page Ref:Sec. 1.2 68) In the following list, only is not an example of a chemical reaction. A) dissolution of a penny in nitric acid B) the condensation of water vapor C) a burning candle D) the formation of polyethylene from ethylene E) the rusting of iron Answer: B Diff: 2 Page Ref:Sec. 1.3 69) Gases and liquids share the property of . A) compressibility B) definite volume E) dropping a penny into a glass of water Answer: C Diff: 1 Page Ref:Sec. 1.3 71) Which one of the following is not an intensive property? A) density B) temperature C) melting point D) mass E) boiling point Answer: D Diff: 2 Page Ref:Sec. 1.3 72) Which one of the following is an intensive property? A) mass B) temperature C) heat content D) volume E) amount Answer: B Diff: 2 Page Ref:Sec. 1.3 D) indefinite shape E) definite shape Answer: D Diff: 1 Page Ref:Sec. 1.3 15 75) Of the following, A) 25 kg B) 2.5 × 10-2mg C) 2.5 × 1015pg D) 2.5 × 109fg E) 2.5 × 1010ng Answer: D Diff: 2 Page Ref:Sec. 1.4 is the smallest mass. 73) Of the following, only is an extensive property. A) density B) mass C) boiling point D) freezing point E) temperature Answer: B Diff: 2 Page Ref:Sec. 1.3 74) Which of the following are chemical processes? 1. rusting of a nail 2. freezing of water 3. decomposition of water into hydrogen and oxygen gases 4. compression of oxygen gas A) 2, 3, 4 B) 1, 3, 4 C) 1, 3 D) 1, 2 E) 1, 4 Answer: C Diff: 3 Page Ref:Sec. 1.3 76) Which one of the following is the highest temperature? A) 38°C B) 96°F C) 302 K D) none of the above E) the freezing point of water Answer: A Diff: 3 Page Ref:Sec. 1.4 77) Which one of the following is true about the liter? A) It is the SI base unit for volume. B) It is equivalent to a cubic decimeter. C) It is slightly smaller than a quart. D) It contains 106 cubic centimeters. E) It is slightly smaller than a gallon. Answer: B Diff: 4 Page Ref:Sec. 1.4