(Test Bank) Chemistry Principles And Practice

Reger,Goode,Ball, 3

Chemistry

Test Bank

3rd Edition

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Test Bank for Chemistry Principles And Practice, The downloadable file consists of 776 pages, and the total size of the file is 3.89 MB. Purchase now only for highly discounted price.

Author(s): Reger, Goode, Ball

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Test Bank for Chemistry Princip les and Practice 3e Daniel Rege r, Scott Goode, David Bal l (All Chapters) Note : This tes t bank has tot al 22 chapters, and 2724 test questions, all test questions are divided by chapt er numbe r. Correct answer s are marked with *. Some Symbols /Images are missing in extraction, it is due to test program file problem, but 9 0% test questions are perfect and clear. Chapter 1 1. Which of the following studies is not considered to be "Chemistry?" a. Studying the interactions between energy and matter. b. Classifying elements into metallic, nonmetallic or semimetallic. c. Studying the interactions between matter an d other mat ter d. Removing harmful impurities from a synthetic drug. *e. Separating the light spectrum into its component colors. 2. Which does not represent a scientific investigation? a. Weighing the results of an experiment to obtain quantitative data. *b. Weighing lab reports on a chemical balance to determine the grade. c. Graphing the mass of a product as a function of the mass of the starting material. d. Determining the temperature at which the maximal amount of product is obtained. e. Trying differ ent conditions if an initial experiment fails. 3. Which of the following is correctly classified as a hypothesis? a. "The sun will rise in the East today." *b. "Global warming is a result of the increased carbon dioxide concentration in th e atmospher e." c. "Our team is better than theirs." d. "Cookies will turn brown when baked." e. "My book is better than yours." 4. All of the following are properties of Magnesium. Which would be considered a chemical property of magnesium? I. Magn esium burns in air to produce a white substance known as magnesium oxide. II. Magnesium dissolves in acidic water to produce hydrogen gas. III. The density of magnesium is 1.738 g/mL. a. I b. II c. III *d. I and II e. all of these 5. The fol lowing are properties of sodium metal. Which would be considered a chemical property of sodium metal? a. Sodium is a silvery -white metal b. Sodium has a melting point of 98 C c. Sodium has a density equal to 0.968 g/mL. *d. Sodium reacts with water v iolently to produce hydrogen gas. e. Sodium metal is drawn into a magnetic field. 6. All of the following are properties of carbon dioxide, CO 2. Which of the following is a chemical property of this substance? *a. It reacts with water to form carboni c acid. b. It is a colorless gas at room temperature and 1 atm pressure. c. It is a solid below −78 C. d. Its density as a solid equals 1.35 g/mL. e. None of these is a chemical property. 7. Of the three properties listed below, which ones are inte nsive properties? I. mass II. density III. color a. I and II *b. II and III c. II only d. I only e. I, II, and III 8. "A 33 g sample of red liquid at its freezing point of 260 K had a density of 0.926 g/mL." Which of the properties given in the previo us statement is extensive ? *a. 33 g b. red c. freezing point d. 260 K e. 0.926 g/mL 9. Which of the following is not a physical change? a. ice melting b. dry ice subliming c. a light -bulb glowing *d. beef cooking e. distilling alc ohol 10. Which of the following is not a chemical change? a. developing a film *b. refrigerating milk c. eating beef d. extinguishing a fire e. frying an egg 11. Which of the following is considered a chemical change ? a. Beef is browned by he ating in a skillet. b. A blackberry changes colors from red to black. c. Addition of hydrogen peroxide to an open cut produces a white liquid and fizzing. d. a and b *e. all of these. 12. Which of the following would be considered a chemical change ? I. Frost forms on the window II. A Silver fork tarnishes III. Toasting a slice of bread. a. I only b. I and II c. I and III *d. II and III e. All of these 13. Which of the following would be considered a physical change ? a. gasoline bur ning *b. salt dissolving in water c. food spoiling d. iron rusting e. a battery discharging 14. Which of the following processes is considered a chemical change ? I. Corrosion of aluminum metal II. Digesting a candy bar. III. Melting of ice. a. I only b. II only c. III only *d. I and II e. All of these 15. Which of the following represents a chemical change ? a. Cutting a string into two pieces. b. Melting candle wax. c. Evaporation of water from a lake. *d. Rusting of an iron nai l. e. Peeling an apple. 16. Which form of substances listed below cannot be separated into simpler substances by chemical or physical means? *a. an element b. a compound c. a heterogeneous mixture d. a homogeneous mixture e. All substances can be separated into simpler substances. 17. Identify the matter that is correctly classified as a mixture. a. ethyl alcohol b. carbon dioxide c. water d. tin *e. air 18. Which of the following is a heterogeneous mixture? a. salt water b. salt c. milk *d. sand e. water 19. How can "oil and vinegar" be classified? (Two phases are present.) a. pure substance b. element c. compound d. homogeneous mixture *e. heterogeneous mixture 20. A glass of tea with a uniform composition throughout would be a n example of a(n) ____. a. pure substance b. element c. compound *d. homogeneous mixture e. heterogeneous mixture 21. Which of the following is an example of a homogeneous mixture ? I. Water and dissolved salt II. Water and sand III. Carbonated water (soda) and ice *a. I only b. II only c. III only d. I and II e. All of these 22. Which of the following best describes a compound ? a. A compound is a mixture that can be separated into its constituent elements using physical methods . b. A compound is a mixture that can be separated into its constituent elements using chemical methods . c. A compound is a pure substance that can be separated into its constituent elements using physical methods . *d. A compound is a pure subs tance that can be separated into its constituent elements using chemical methods . 23. Which of the following best describes a mixture? a. It's composition can vary but its properties remain constant . *b. It's composition and properties can vary. c. It's composition remains constant but its properties varies . d. It's composition and properties remains constant . 24. Which of the following best describes an element? a. An element is a mixture that can be separated into simpler substances using physical metho ds. b. An element is a mixture that can be separated into simpler substances using chemical methods . c. An element is a pure substance that can be separated into simpler substances using physical methods . d. An element is a pure substance that can be se parated into simpler substances using chemical methods . *e. An element is a pure substance that cannot be separated into simpler substances using ordinary physical or chemical methods. 25. Which is properly classified as a compound? a. salt water *b. salt c. wine d. bread e. copper 26. Which of the following is not an element? a. niobium b. thallium c. silicon d. sodium *e. ammonium 27. The elements Carbon, Lead, and Magnesium are designated by what chemical symbols respecti vely? a. C, L, M b. Ca, Le, Ma c. C, Pb, Mn *d. C, Pb, Mg e. Ca, Pb, Mn 28. What is the chemical symbol for the element tin? a. T *b. Sn c. Ti d. Tn e. St 29. Which of the following matched pairs of elemental names and chemical symbols is properly l abeled? I. Magnesium, Mg II. Mercury, M III. Silver, Si IV. Sodium, S V. Oxygen, O a. I only b. II and III *c. I and V d. I, IV and V e. All are properly labeled 30. Which of the following matched pairs of elemental names and chemical sym bols is properly labeled? I. Calcium, C II. Plutonium, Pt III. Silicon, Si IV. Iron, I V. Nitrogen, N a. I, IV and V b. II, III and V c. I, III, IV and V *d. III and V e. All are properly labeled 31. The definition "stable pure substance that cannot be separated into simpler substances by chemical means" would best fit which term listed below? *a. element b. compound c. atom d. molecule e. xanon 32. A compound is: *a. a pure substance that can be decomposed chemically . b. a cha racteristic that describes a substance. c. a pure substance that cannot be decomposed chemically. d. a combination of atoms. e. none of these. 33. A precise measurement a. is known to two or more significant figures. b. is known to two or more dec imal places. *c. is repeatable. d. is close to the correct answer e. is beyond the scope of a first -year chemistry student. 34. An accurate measurement a. is known to two or more significant figures. b. is known to two or more decimal p laces. c. is repeatable. *d. is close to the correct answer e. is beyond the scope of a first year chemistry student. 35. Which of the following volume measurements is the least precise measurement? a. 1.0 mL b. 2.018 mL c. 2.02 mL d. 2.022 mL *e. 3 mL 36. Three students measured the density of pure water in the laboratory. Their results are as follows: Student 1: Density = 1.20 g/mL Student 2: Density = 1.21 g/mL Student 3: Density = 1.19 g/mL The actual density of water at 25 C equ als 0.997 g /mL. What do the results of these three experiments demonstrate when compared to the true density of water? a. High accuracy and high precision b. High accuracy and low precision *c. Low accuracy and high precision d. Low accuracy and low p recision e. None of these 37. Three students measured the freezing temperature of water in the laboratory. Their results are as follows: Student 1: freezing temperature = 2.86 C Student 2: freezing temperature = −4.52 C Student 3: freezing tempera ture = 3.21 C The actual freezing temperature of water equals 0.00 C. The results of these three students when compared to the true freezing temperature of water demonstrates: a. High accuracy and high precision b. High accuracy and low precision c. Low ac curacy and high precision *d. low accuracy and low precision e. None of these 38. Which of the following measurements is considered a combination of one of the seven base units from which all other measurements can be made? a. mass *b. volume c. amount d. temperature e. time 39. What length in millimeters can be reported for the rectangle below? (Note that the ruler measures in centimeters.) a. 24 mm *b. 24.0 mm c. 2.4 mm d. 2.40 mm e. 240 mm 40. In the reported measureme nt of 24.0 mm, what digit is uncertain ? a. tens place b. in the ones place *c. in the tenths place d. in the hundredths place e. All places are reported with certainty. 41. What is the temperature given by the thermometer below written with the proper number of significant digits? a. 32.3 C *b. 32.30 C c. 32 C d. 32.300 C e. 30 C 42. What digit(s) is(are) considered the digit of uncertainty in the following measurement? a. thousandths place b. ones, hundredths, ten thousandths and hundred thousandths places c. ten thousandths place *d. hundred thousandths place e. millionth place 43. How many significant digits are there in 0.0050 mL? a. 1 *b. 2 c. 3 d. 4 e. 5 44. Choose the best answer to the following math probl em (with the proper number of significant digits and rounded correctly ). (12.3432 − 8.84)  22.48 = ?? a. 78.751936 b. 78.75 c. 78.76 *d. 78.8 e. 78.752 45. Two students combined two different volumes of water. The first student measured 2 5.4 mL of w ater using a 100.0 mL graduated cylinder and the second student measured 0.15 mL of water using a 50.00 mL burette. What total volume should be reported after taking into account significant digits and the convention used for rounding? a. 25 mL b. 25.5 mL c. 25.55 mL *d. 25.6 mL e. 26 mL 46. Which measurements below have four significant digits? Measurement I. 0.023 mL II. 2300 mL III. 1700. mL IV. 0.004050 mL a. all of these have four significant digits b. I, II and III c. II, III, and IV d. I and II *e. III and IV 48. Properly expressed, the answer to the mathematical manipulation (0.243  4.2) + 21 = is: *a. 22 b. 22.0 c. 2.2  102 d. 22.02 e. 2.202  102 49. The correct answer for (1.22  103)  0.013 is: a. 15.8 b. 158 *c. 16 d. 15.86 e. 93846 50. What is the density of mercury when reported to the proper number of significant digits and in scientific notation if a sample is found to have a mass of 524.5 g and occupies a volume of 38.72 ml? a. 7.38  10−2 g/mL b. 7.382  10−2 g/mL c. 1.35  101 g/mL d. 1.354  101 g/mL *e. 1.355  101 g/mL 51. The dimensions of the following cube were measured. What would be the volume of this cube expressed to the proper number of significant digits? (Vol ume = l  w  d) a. 29.127861 cm3 b. 29.13 cm3 c. 29.1 cm3 *d. 29. cm3 e. 30 cm3 52. The number 486,000 is equal to: a. 4.86  102 b. 4.86  10−4 c. 4.86  103 d. 4.86  104 *e. 4.86  105 53. The number 0.00042 is equal to: a. 4.2  104 *b. 4.2  10−4 c. 4.2  103 d. 4.2  10−3 e. 4.2  10−2 54. How would the measurement, 5125 m, be rounded off to three significant digits and expressed in scientific notation ? a. 5.12  10−3 m b. 5.13  10−3 m c. 5.130  10−3 m *d. 5.12  103 m e. 5.13  104 m 55. Which is an abbreviation for an SI base unit? a. J *b. kg c. Nt d. C e. L 56. Which metric prefix(es) listed below is(are) correctly assigned the proper power of ten? I. giga: 10 9 II. micro: 10 6 III. nano: 10 −12 *a. I only b. II only c. III only d. I and II e. II and III 57. Which metric prefix(es) listed below is(are) correctly assigned the proper power of ten? I. deci: 10 1 II. nano: 10 −6 III. mega: 10 6 a. I only b. II only *c. III only d. I and II e. All of these 58. Which metric prefix listed below has a power of 10−12 associated with it? a. centi b. micro c. milli d. kilo *e. pico