(Test Bank) Chemistry The Central Science

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CHEMISTRY THE CENTRAL SCIENCE - TEST BANK BY RANDOM PEOPLE Chemistry, 11e (Brown) Chapter 1: Introduction: Matter and Measurement 1 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 Guru2 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 ab ilities 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 th e smallest on the __________ temperature scale. A) Kelvin B) Celsius C) Fahrenheit D) Kelvin and Celsius E) Fahrenheit and Celsius Answer: C Diff: 3 Page Ref:Sec. 1.4 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 Guru3 12) The unit of force in the English measurement system is 21b • ft s. The SI unit of force is the Newton, which is __________ in base SI units. A) 2g • cm s B) 2kg • m hr C) 2kg • m s D) 2g • m s 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 Guru4 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 = __________ picometers A) 1000 B) 0.1 C) 0.01 D) 1 E) 10 Answer: A Diff: 2 Page Ref:Sec. 1.4 20) 1 picometer = __________ centimeters A) 1 × 1010 B) 1 × 1010− C) 1 × 810 D) 1 × 810− E) 1 × 1210− Answer: B Diff: 2 Page Ref:Sec. 1.4 21) 1 kilogram = __________ milligrams A) 1 × 610− B) 1,000 C) 10,000 D) 1,000,000 E) none of the above Answer: D Diff: 2 Page Ref:Sec. 1.4 Guru5 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 __________ 3cm, then the sphere will sink in liquid mercury (density = 13.63g/cm ). 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 24) The density (in 3g/cm ) of a gold nugget that has a volume of 1.68 3cm and a mass of 32.4 g is __________. A) 0.0519 B) 19.3 C) 54.4 D) 0.0184 E) 32.4 Answer: B Diff: 1 Page Ref:Sec. 1.4 25) The density of silver is 10.5 3g/cm . A piece of silver with a mass of 61.3 g would occupy a volume of __________3cm. A) 0.171 B) 644 C) 10.5 D) 0.00155 E) 5.84 Answer: E Diff: 2 Page Ref:Sec. 1.4 26) The density of silver is 10.5 3g/cm . A piece of silver that occupies a volume of 23.63cm 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 Guru6 27) A certain liquid has a density of 2.673g/cm . 1340 g of this liquid would occupy a volume of __________ L. A) 31.99 × 10− 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 3g/cm . 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 3g/cm . The mass of a block of osmium that measures 1.01 cm × 0.233 cm × 0.648 cm is __________ g. A) 36.75 × 10− B) 3.45 C) 148 D) 36.75 × 10 E) 34.5 Answer: B Diff: 3 Page Ref:Sec. 1.4 30) 3.337 3g/cm = __________ 3kg/cm A) 93.337 × 10− B) 53.337 × 10− C) 3337 D) 0.3337 E) 333.7 Answer: C Diff: 2 Page Ref:Sec. 1.4 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 Guru7 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 __________ 3cm. A) 42.40 × 10 B) 63.72 × 10 C) 2.40 D) 3.72 E) 155 Answer: B Diff: 4 Page Ref:Sec. 1.4 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) 21.6 × 10 D) 32.7 × 10 E) 51.6 × 10 Answer: C Diff: 2 Page Ref:Sec. 1.4 Guru8 37) If an object, beginning at rest, is moving at a speed of 700 m/s af ter 2.75 min, its rate of acceleration (in 2m/s ) is __________. (Assume th at the rate of acceleration is constant.) A) 51.6 × 10 B) 255 C) 193 D) 4.24 E) 41.53 × 10 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) 21.1 × 10 Answer: E Diff: 3 Page Ref:Sec. 1.5 40) The correct result of the molecular mass calculation for 24HS O 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 Guru9 41) The volume of a regular cylinder is 2V = πrh. Using the value 3.1416 for the constant π, the volume ()3cm of a cylinder of radius 2.34 cm and height 19.91 cm expr essed 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: 5(29.2 - 20.0) (1.79 × 10 ) 1.39 A) 1 B) 2 C) 3 D) 4 E) 5 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 Answer: B Diff: 2 Page Ref:Sec. 1.5 44) __________ significant figures should be retained in the result of the following calculation. 4 -6(11.13 - 2.6) × 10 (103.05 + 16.9) × 10 A) 1 B) 2 C) 3 D) 4 E) 5 Answer: B Diff: 2 Page Ref:Sec. 1.5 Guru10 45) The output of a plant is 4335 pounds of ball bearings per week (f ive 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 appropriat e number of significant figures.) A) 53.84 10× B) 47.67 10× C) 867 D) 73.84 10× E) 62.91 10× Answer: D Diff: 4 Page Ref:Sec. 1.6 46) The density of mercury is 13.63g/cm . The density of mercury is __________3kg/m . A) -21.36 10× B) 41.36 10× C) 81.36 10× D) -51.36 10× E) -41.36 10× Answer: B Diff: 4 Page Ref:Sec. 1.6 47) The quantity 1.02mg/cm is the same as 1.0 × __________2kg/m . A)410− B) 210 C) 610− D) 210− E) 410 Answer: D Diff: 2 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 Guru11 50) One edge of a cube is measured and found to be 13 cm. The volume of the cube in 3m is __________. A) -32.2 10× B) -62.2 10× C) 2.2 D) 32.2 10× E62.2 10× Answer: A Diff: 4 Page Ref:Sec. 1.6 51) The density of lead is 11.43g/cm . The mass of a lead ball with a radius of 0.50 mm is __________ g. ()3Vsphere = 4 r / 3 π A) 6.0 B) -24.6 10× C) -54.6 10× D) -36.0 10× E) 4.6 Answer: D Diff: 4 Page Ref:Sec. 1.6 Multiple-Choice 52) In the following list, only __________ is not an example of matter. A) planets B) light C) dust D) elemental phosphorus E) table salt Answer: B Diff: 2 Page Ref:Sec. 1.1 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 Guru12 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 Guru13 61) Which states of matter ar e 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 Guru14 67) Which of the following is an illustrati on 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 C) incompressibility D) indefinite shape E) definite shape Answer: D Diff: 1 Page Ref:Sec. 1.3 70) Of the following, only ______ ____ is a chemical reaction. A) melting of lead B) dissolving sugar in water C) tarnishing of silver D) crushing of stone 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 Guru