Test Bank For Chemistry 4th Edition By Burdge

Chapter 02 Atoms and the Periodic Table 1. The scientist who determined the magnitude of the electric charge on the electron was A. John Dalton. B. Robert Millikan. C. J. J. Thomson. D. Henry Moseley. E. J. Burdge. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 2. When J. J. Thomson discovered the electron, what physical property of the electron did he measure? A. its charge, e B. its charge-to-mass ratio, e/m C. its temperature, T D. its mass, m E. its atomic number, Z Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 3. Which field of study made a big contribution toward understanding the composition of the atom? A. Electricity B. Radiation C. Solution chemistry D. Electrochemistry E. Quantum mechanics Blooms: 2. Understand Difficulty: Medium Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 4. Which of the following is a type of radioactive radiation that has no charge and is unaffected by external electric or magnetic fields? A. α rays B. β rays C. γ rays D. δ rays E. ε rays Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 5. Which of the following is a type of radioactive radiation that consists of positively charged particles and is deflected away from the positively charged plate? A. α rays B. β rays C. γ rays D. δ rays E. ε rays Blooms: 2. Understand Difficulty: Medium Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 6. Which of the following is a type of radioactive radiation that consists of electrons and is deflected away from the negatively charged plate? A. α rays B. β rays C. γ rays D. δ rays E. ε rays Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 7. Which of these scientists developed the nuclear model of the atom? A. John Dalton B. Robert Millikan C. J. J. Thomson D. Henry Moseley E. Ernest Rutherford Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 8. Rutherford's experiment with alpha particle scattering by gold foil established that A. protons are not evenly distributed throughout an atom. B. electrons have a negative charge. C. electrons have a positive charge. D. atoms are made of protons, neutrons, and electrons. E. protons are 1840 times heavier than electrons. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 9. Who is credited with measuring the mass/charge ratio of the electron? A. Dalton B. Chadwick C. Thomson D. Millikan E. Rutherford Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom 10. Who is credited with first measuring the charge of the electron? A. Dalton B. Gay-Lussac C. Thomson D. Millikan E. Rutherford Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 11. Millikan's oil-drop experiment A. established the charge on an electron. B. showed that all oil drops carried the same charge. C. provided support for the nuclear model of the atom. D. suggested that some oil drops carried fractional numbers of electrons. E. suggested the presence of a neutral particle in the atom. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 12. Who is credited with discovering the atomic nucleus? A. Dalton B. Gay-Lussac C. Thomson D. Chadwick E. Rutherford Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 13. Which one of the following statements about atoms and subatomic particles is correct? A. Rutherford discovered the atomic nucleus by bombarding gold foil with electrons. B. The proton and the neutron have identical masses. C. The neutron's mass is equal to that of a proton plus an electron. D. A neutral atom contains equal numbers of protons and electrons. E. An atomic nucleus contains equal numbers of protons and neutrons. Blooms: 2. Understand Difficulty: Medium Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 14. Who discovered the neutron, the subatomic particle having a neutral charge? A. Millikan B. Dalton C. Chadwick D. Rutherford E. Thomson Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 15. What is the term for the number of protons in the nucleus of each atom of an element? It also indicates the number of electrons in the atom. A. Isotope number B. Mass number C. Mass-to-charge ratio D. Atomic number E. Atomic mass units Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 16. What is the term for the total number of neutrons and protons in the nucleus of each atom of an element? A. Isotope number B. Mass number C. Mass-to-charge ratio D. Atomic number E. Atomic mass units Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 17. Bromine is the only nonmetal that is a liquid at room temperature. Consider the isotope bromine-81, . Select the combination which lists the correct atomic number, number of neutrons, and mass number, respectively. A. 35, 46, 81 B. 35, 81, 46 C. 81, 46, 35 D. 46, 81, 35 E. 35, 81, 116 Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Elements and the Periodic Table Topic: Components of Matter 18. Atoms X, Y, Z, and R have the following nuclear compositions: I II III IV Which of the following are isotopes of the same element? A. I & II B. I & IV C. II & IV D. III & IV E. I & III Blooms: 5. Evaluate Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Topic: Components of Matter 19. Which isotope is not possible? A. B. C. D. E.All of these isotopes are possible. Blooms: 5. Evaluate Difficulty: Hard Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Topic: Components of Matter 20. Atoms of the same element with different mass numbers are called A. ions. B. neutrons. C. chemical groups. D. chemical families. E. isotopes. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 21. How many neutrons are there in an atom of lead whose mass number is 208? A. 82 B. 126 C. 208 D. 290 E. none of them Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 22. An atom of the isotope sulfur-31 consists of how many protons, neutrons, and electrons? (p = proton, n = neutron, e = electron) A. 15 p, 16 n, 15 e B. 16 p, 15 n, 16 e C. 16 p, 31 n, 16 e D. 32 p, 31 n, 32 e E. 16 p, 16 n, 15 e Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 23. Give the number of protons (p), electrons (e), and neutrons (n) in one atom of chlorine- 37. A. 37 p, 37 e, 17 n B. 17 p, 17 e, 37 n C. 17 p, 17 e, 20 n D. 37 p, 17 e, 20 n E. 17 p, 37 e, 17 n Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 24. Two isotopes of an element differ only in their A. symbol. B. atomic number. C. atomic mass. D. number of protons. E. number of electrons. Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter   25. The elements in a column of the periodic table are known as A. metalloids. B. a period. C. noble gases. D. a group. E. nonmetals. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 26. Which of these materials are usually poor conductors of heat and electricity? A. Metals B. Metalloids C. Nonmetals D. Alkaline earth metals E. Alkali metals Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Components of Matter 27. Which of these elements is most likely to be a good conductor of electricity? A. N B. S C. He D. Cl E. Fe Blooms: 2. Understand Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Components of Matter 28. Which of the following is a nonmetal? A. Lithium, Li, Z = 3 B. Bromine, Br, Z = 35 C. Mercury, Hg, Z = 80 D. Bismuth, Bi, Z = 83 E. Sodium, Na, Z = 11 Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 29. Which of the following is a metal? A. Nitrogen, N, Z = 7 B. Phosphorus, P, Z = 15 C. Arsenic, As, Z = 33 D. Thallium, Tl, Z = 81 E. Silicon, Si, Z = 14 Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter   30. Which of the following is a metalloid? A. Carbon, C, Z = 6 B. Sulfur, S, Z = 16 C. Germanium, Ge, Z = 32 D. Iridium, Ir, Z = 77 E. Bromine, Br, Z = 35 Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 31. A row of the periodic table is called a(n) A. group. B. period. C. isotopic mixture. D. family. E. subshell. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 32. Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon. Isotope Isotopic Mass (amu) Abudance % 28Si 27.976927 92.22 29Si 28.976495 4.69 30Si 29.973770 3.09 A. 29.2252 amu B. 28.9757 amu C. 28.7260 amu D. 28.0855 amu E. 27.9801 amu Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Elements and the Periodic Table Topic: Components of Matter 33. Lithium forms compounds which are used in dry cells, storage batteries, and in high-temperature lubricants. It has two naturally occurring isotopes, 6Li (isotopic mass = 6.015123 amu) and 7Li (isotopic mass = 7.016005 amu). Lithium has an atomic mass of 6.9412 amu. What is the percent abundance of lithium-6? A. 92.53% B. 86.65% C. 49.47% D. 7.47% E. 6.015% Blooms: 3. Apply Difficulty: Hard Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Elements and the Periodic Table Topic: Components of Matter   34. In the periodic table, atoms are arranged in order of A. increasing atomic mass. B. increasing atomic number. C. physical properties. D. periodicity. E. chemical reactivities. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Elements and the Periodic Table Topic: Components of Matter 35. The elements in Group 7A are known by what name? A. Transition metals B. Halogens C. Alkali metals D. Alkaline earth metals E. Noble gases Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 36. The elements in Group 2A are known by what name? A. Transition metals B. Halogens C. Alkali metals D. Alkaline earth metals E. Noble gases Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 37. The alkali metal elements are found in _______ of the periodic table. A. Group 1A B. Group 2A C. Group 3A D. Period 7 E. Period 1 Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 38. What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom? A. Isotope number B. Mass number C. Mass-to-charge ratio D. Atomic number E. Atomic mass unit Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Topic: Components of Matter   39. Which of these elements is chemically similar to magnesium? A. Sulfur B. Calcium C. Iron D. Nickel E. Potassium Blooms: 5. Evaluate Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Components of Matter 40. Which of these elements is chemically similar to oxygen? A. Sulfur B. Calcium C. Iron D. Nickel E. Potassium Blooms: 5. Evaluate Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Components of Matter 41. Which of these elements is chemically similar to potassium? A. calcium B. arsenic C. phosphorus D. cerium E. cesium Blooms: 5. Evaluate Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Components of Matter 42. What element is represented by X in the atomic symbol notation ? A. Iridium B. Platinum C. Palladium D. Selenium E. Magnesium Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Elements and the Periodic Table Topic: Components of Matter 43. Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A. 17 electrons, B. 18 electrons, C. 17 electrons, D. 17 electrons, E. 18 electrons, Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 44. Determine the number of protons, electrons, and neutrons for the isotope gold-118. The symbol for gold is Au. A. 118 protons, 118 electrons, 79 neutrons B. 79 protons, 79 electrons, 118 neutrons C. 79 protons, 79 electrons, 39 neutrons D. 118 protons, 118 electrons, 39 neutrons E. 79 protons, 39 electrons, 118 neutrons Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 45. Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A. 20 protons, B. 20 protons, C. 20 protons, D. 40 protons, E. 40 protons, Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 46. Which of these compounds is most likely to be ionic? A. KF B. CCl4 C. CS2 D. CO2 E. ICl Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 47. Which of these compounds is most likely to be ionic? A. GaAs B. SrBr2 C. NO2 D. CBr4 E. H2O Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding   48. Which of these compounds is most likely to be ionic? A. NCl3 B. BaCl2 C. CO D. SO2 E. SF4 Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 49. Which of these pairs of elements would be most likely to form an ionic compound? A. Cl and I B. Al and K C. Cl and Mg D. C and S E. Al and Mg Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 50. Which of the following contains ionic bonding? A. CO B. SrF2 C. Al D. OCl2 E. HCl Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 51. Which of the following is an ionic compound? A. H2S B. NH3 C. I2 D. KI E. CCl4 Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 52. An anion is defined as A. a charged atom or group of atoms with a net negative charge. B. a stable atom. C. a group of stable atoms. D. an atom or group of atoms with a net positive charge. E. neutral. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Electron Configurations of Cations and Anions Subtopic: Molecules and Ions Topic: Components of Matter Topic: Electron Configuration   53. Which one of these species is an ion? A. B3+ B. NaCl C. He D. 14C E. None of these species is an ion. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Electron Configurations of Cations and Anions Subtopic: Molecules and Ions Topic: Electron Configuration 54. Which of these pairs of elements would be most likely to form an ionic compound? A. P and Br B. Cu and K C. C and O D. O and Zn E. Al and Rb Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 55. Which pair of elements would be most likely to form an ionic compound? A. P and Br B. Zn and K C. F and Al D. C and S E. Al and Rb Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Bond Polarity Subtopic: Electronegativity Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 56. What is the formula for the ionic compound formed by calcium ions and nitrate ions? A. Ca3N2 B. Ca(NO3)2 C. Ca2NO3 D. Ca2NO2 E. CaNO3 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Topic: Components of Matter 57. What is the formula for the ionic compound formed by calcium and selenium? A. CaSe B. Ca2Se C. CaSe2 D. Ca3Se E. CaSe3 Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Topic: Components of Matter   58. Which is the correct formula for copper(II) phosphate? A. Cu2PO4 B. Cu3(PO4)2 C. Cu2PO3 D. Cu(PO4)2 E. Cu(PO3)2 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Topic: Components of Matter 59. The chemical name for ClO3– is “chlorate ion”. What is the common name for HClO3? A. hydrochloric acid B. chloroform C. hydrogen trioxychloride D. chlorous acid E. chloric acid Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Acid-Base Definitions Subtopic: Chemical Formulas Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Acids and Bases Topic: Components of Matter 60. The formula for magnesium sulfate is A. MnS. B. MgS. C. MnSO3. D. MgSO4. E. MnSO4. Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 61. The formula for sodium sulfide is A. NaS. B. K2S. C. NaS2. D. Na2S. E. SeS. Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter   62. The chemical formula for iron(II) nitrate is A. Fe2(NO3)3. B. Ir(NO2)2. C. Fe2N3. D. Fe(NO3)2. E. Fe(NO2)2. Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 63. Which one of the following formulas of ionic compounds is the least likely to be correct? A. NH4Cl B. Ba(OH)2 C. Na2SO4 D. Ca2NO3 E. Cu(CN)2 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter 64. What is the formula for lead(II) oxide? A. PbO B. PbO2 C. Pb2O D. PbO4 E. Pb2O3 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter 65. Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials. What is its formula? A. KMnO3 B. KMnO4 C. K2MnO4 D. K(MnO4)2 E. K2Mn2O7 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter   66. Ferric oxide is used as a pigment in metal polishing. Which of the following is its formula? A. FeO B. Fe2O C. FeO3 D. Fe2O5 E. Fe2O3 Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter 67. What is the name of Mn(CO3)2? A. manganese carbide B. magnesium(IV) carbonate C. manganese(II) carbonate D. magnesium(II) carbonate E. manganese(IV) carbonate Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter 68. What is the name of Ba(NO2)2·3H2O? A. barium nitrite B. trihydrobarium(II) nitrite C. barium nitrite trihydrate D. barium(II) nitrite trihydrate E. barium nitrate trihydrate Blooms: 4. Analyze Difficulty: Hard Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Molecules and Ions Topic: Chemical Bonding Topic: Components of Matter 69. What is the formula of hydrobromic acid? A. H2OBr B. HBrO3 C. HBrO D. HBr E. HBr·2H2O Blooms: 3. Apply Difficulty: Hard Gradable: automatic Subtopic: Acid-Base Definitions Subtopic: Chemical Formulas Subtopic: Nomenclature Topic: Acids and Bases Topic: Components of Matter   70. What is the formula of iodous acid? A. HI B. HIO3 C. HIO D. HIO4 E. HIO2 Blooms: 3. Apply Difficulty: Hard Gradable: automatic Subtopic: Acid-Base Definitions Subtopic: Chemical Formulas Subtopic: Nomenclature Topic: Acids and Bases Topic: Components of Matter 71. Iron(III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula? A. Fe(Cl·6H2O)3 B. Fe3Cl·6H2O C. FeCl3(H2O)6 D. Fe3Cl(H2O)6 E. FeCl3·6H2O Blooms: 3. Apply Difficulty: Hard Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 72. Which of the following is the oxoanion of bromine called the bromate ion? A. BrO3– B. BrO32– C. BrO42– D. BrO2– E. BrO– Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Ionic Bonding and Lattice Energy Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 73. What types of elements undergo ionic bonding? A. two metals B. a nonmetal and a metal C. two nonmetals D. two Group 1A elements E. two noble gases Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Ionic Bonding and Lattice Energy Subtopic: Periodic Classification of the Elements Topic: Chemical Bonding Topic: Chemical Periodicity   74. What is the name of PCl3? A. phosphorus chloride B. phosphoric chloride C. phosphorus trichlorate D. trichlorophosphide E. phosphorus trichloride Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Chemical Formulas Subtopic: Covalent Bonding Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 75. The compound, P4S10, is used in the manufacture of safety matches. What is its name? A. phosphorus sulfide B. phosphoric sulfide C. phosphorus decasulfide D. tetraphosphorus decasulfide E. phosphorus sulfite Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Covalent Bonding Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 76. Diiodine pentaoxide is used as an oxidizing agent that converts carbon monoxide to carbon dioxide. What is its chemical formula? A. I2O5 B. IO5 C. 2IO5 D. I5O2 E. (IO5)2 Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Covalent Bonding Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter 77. What is the name of P4Se3? A. phosphorus selenide B. phosphorus triselenide C. tetraphosphorus selenide D. phosphoric selenide E. tetraphosphorus triselenide Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Chemical Formulas Subtopic: Covalent Bonding Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Chemical Bonding Topic: Components of Matter   78. What is the name of ClO– ion? A. hypochlorite B. chlorate C. chlorite D. perchlorate E. perchlorite Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Components of Matter 79. What is the formula for the permanganate ion? A. MnO2– B. MnO4– C. MgO42– D. Mn2O7– E. MgO22– Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Components of Matter 80. Tetrasulfur dinitride decomposes explosively when heated. What is its formula? A. S2N4 B. S4N2 C. 4SN2 D. S4N E. S2N Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Components of Matter 81. Which of the following is the empirical formula for hexane, C6H14? A. C12H28 B. C6H14 C. C3H7 D. CH2.3 E. C0.43H Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Components of Matter Topic: Stoichiometry and Chemical Reactions   82. Which of the following is a molecular formula for a compound with an empirical formula of CH? A. C2H6 B. C3H9 C. C4H10 D. C6H6 E. None of the answers is correct. Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Chemical Formulas Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Subtopic: Molecules and Ions Subtopic: Nomenclature Topic: Components of Matter Topic: Stoichiometry and Chemical Reactions 83. Which of the following substances is a molecule, but not a compound? A. SO2 B. O2 C. CS2 D. Ar E. CO32– Blooms: 5. Evaluate Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Topic: Components of Matter 84. What is the chemical name of FeSO3? A. Iron(II) sulfite B. Iron(III) sulfate C. Iron sulfate D. Iron sulfur trioxide E. None of the names is correct. Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Subtopic: Molecules and Ions Topic: Components of Matter 85. Polyatomic molecules contain A. two different types of atoms. B. two of the same types of atoms. C. only two atoms of the same or different type. D. more than two atoms of the same or different type. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Chemical Formulas Topic: Components of Matter 86. Common examples of diatomic molecules from Group 7A elements include A. fluorine, hydrogen, and nitrogen. B. nitrogen, chlorine, and bromine. C. chlorine, bromine, and iodine. D. iodine, lead, and oxygen. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Topic: Components of Matter   87. The fact that when 48.6 g of magnesium completely reacts with 32.0 g of oxygen, exactly 80.6 g of magnesium oxide is formed illustrates A. the law of definite proportions. B. the law of conservation of mass. C. the law of multiple proportions. D. Dalton's description of the atom. Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Topic: Components of Matter 88. Why was it more difficult to design an experiment that would prove the existence of neutrons than it was to design an experiment that would prove the existence of either protons or electrons? A. Neutrons are smaller than either protons or electrons, so their presence is much more difficult to detect. B. Because neutrons are 1840 times heavier than protons, they are difficult to separate, and therefore, to count. C. Neutrons do not deflect charged particles. D. The similarity of the magnetic and electrical properties of protons and neutrons made them experimentally indistinguishable. Blooms: 4. Analyze Difficulty: Medium Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 89. The 80Br- ion has A. 45 protons, 35 neutrons, 45 electrons. B. 35 protons, 45 neutrons, 34 electrons. C. 35 protons, 45 neutrons, 36 electrons. D. 45 protons, 35 neutrons, 46 electrons. E. 35 protons, 45 neutrons, 46 electrons. Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Topic: Components of Matter 90. C(graphite) and C(diamond) are examples of A. isotopes of carbon. B. allotropes of carbon. C. the law of definite proportions. D. different carbon ions. Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Molecules and Ions Topic: Components of Matter 91. What binary compound would be formed from barium ions and fluoride ions? A. Ba2F3 B. BaF3 C. BaF D. Ba2F E. BaF2 Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Chemical Formulas Topic: Components of Matter   92. The chemical name for SO32- (aq) is sulfite ion. Therefore, the chemical name of H2SO3 (aq) is A. dihydrosulfuric acid. B. sulfurous acid. C. dihydrogen sulfite. D. hyposulfurous acid. E. sulfuric acid. Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Nomenclature Topic: Components of Matter 93. The mass of a neutron is equal to the mass of a proton plus the mass of an electron. FALSE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 94. All neutral atoms of tin have 50 protons and 50 electrons. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 95. Copper (Cu) is a transition metal. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 96. Lead (Pb) is a main group element. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 97. Almost all the mass of an atom is concentrated in the nucleus. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Atomic Theories Subtopic: Structure of the Atom Topic: Components of Matter 98. Ionic compounds may carry a net positive or net negative charge. FALSE Blooms: 2. Understand Difficulty: Medium Gradable: automatic Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding   99. The empirical formula of C6H6 is CH. TRUE Blooms: 4. Analyze Difficulty: Easy Gradable: automatic Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions 100. The empirical formula is the simplest whole number ratio of atoms representing a chemical formula of a molecule. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions 101. Many compounds can be represented with the same empirical formula. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions 102. There is only one distinct empirical formula for each compound that exists. TRUE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions 103. The molecular formula is a whole number multiple of the empirical formula. FALSE Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions 104. The elements in Group 8A are called the ________. noble gases Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 105. The elements in Group 2A are called the ________. alkaline earth metals Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 106. The elements in Group 7A are called the ________. halogens Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter   107. The elements in Group 1A are called the ________. alkali metals Blooms: 1. Remember Difficulty: Medium Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 108. ______________ are electrons that are deflected away from negatively charged plates. β particles Blooms: 3. Apply Difficulty: Medium Gradable: automatic Subtopic: Radioactivity and Nuclear Stability Topic: Nuclear Chemistry 109. ______________ are atoms that have the same atomic number (Z) but different mass numbers (A). Isotopes Blooms: 3. Apply Difficulty: Easy Gradable: automatic Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 110. _____________ have properties that are intermediate between those of metals and nonmetals. Metalloids Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 111. The elements in Group 8A are called the ________. noble gases Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 112. _________________ is defined as a mass exactly equal to one-twelfth the mass of one carbon-12 atom. One atomic mass unit Blooms: 2. Understand Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 113. What is the name given for the elements in Group 1A in the periodic table? Alkali metals Blooms: 1. Remember Difficulty: Easy Gradable: manual Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter   114. What is the name given for the elements in Group 7A in the periodic table? Halogens Blooms: 1. Remember Difficulty: Easy Gradable: manual Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 115. Which group is given the name chalcogens? Group 6A Blooms: 1. Remember Difficulty: Easy Gradable: manual Subtopic: Elements and the Periodic Table Subtopic: Periodic Classification of the Elements Topic: Chemical Periodicity Topic: Components of Matter 116. The table below describes four atoms. Atom A Atom B Atom C Atom D Number of protons 79 80 80 79 Number of neutrons 118 120 118 120 Number of electrons 79 80 80 79 Which atoms represent the same element? Atoms A and D represent the same element, and Atoms B and C represent the same element. Blooms: 4. Analyze Difficulty: Medium Gradable: manual Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Subtopic: Structure of the Atom Topic: Components of Matter 117. In the early 1900s, Ernest Rutherford performed an experiment with thin foils of gold and alpha particles to probe the structure of the atoms. He observed that most of these alpha particles penetrated the foil and were not deflected. Realizing that atoms are electrically neutral (that is, they have equal numbers of protons and electrons) and that the mass of a proton is significantly greater than the mass of an electron, use Rutherford's data to propose a structural model of an atom. (Answers will vary.) Atoms are mostly empty space. The mass is concentrated mostly at the center of the atom. Blooms: 4. Analyze Difficulty: Easy Gradable: manual Subtopic: Structure of the Atom Topic: Components of Matter 118. State the two important experimental results (and the names of the responsible scientists) which enabled the mass of the electron to be determined. Thomson measured m/e, the mass-to-charge ratio. Millikan measured e, the charge. Thus, the mass m could be calculated. Blooms: 2. Understand Difficulty: Medium Gradable: manual Subtopic: Structure of the Atom Topic: Components of Matter 119. Determine the average atomic mass of boron. The natural abundance of 10B (weighing 10.0129 amu) is 19.9% and the natural abundance of 11B (weighing 11.0093 amu) is 80.1%. Show all your work. (10.0129 amu)(0.199) + (11.0093 amu)(0.801) = 10.81 amu Blooms: 3. Apply Difficulty: Medium Gradable: manual Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes Topic: Components of Matter   120. What is the electrostatic attraction called that holds oppositely charged ions together in a compound? ionic bond Blooms: 2. Understand Difficulty: Easy Gradable: manual Subtopic: Ionic Bonding and Lattice Energy Topic: Chemical Bonding 121. What is the law that describes different samples of a given compound that always contain the same elements in the same mass ratio? law of definite proportions Blooms: 2. Understand Difficulty: Easy Gradable: manual Subtopic: Chemical Formulas Subtopic: Mass Percent Composition Topic: Components of Matter Topic: Stoichiometry and Chemical Reactions 122. What name is given to the simplest organic compounds which only contain carbons and hydrogens? hydrocarbons Blooms: 1. Remember Difficulty: Easy Gradable: manual Subtopic: Classes of Organic Molecules (Functional Groups) Topic: Organic Molecules 123. What is the name of Cu2O? Copper(I) oxide Blooms: 4. Analyze Difficulty: Medium Gradable: manual Subtopic: Chemical Formulas Subtopic: Nomenclature Topic: Components of Matter 124. Describe the difference between an empirical formula and a molecular formula. An empirical formula is the simplest chemical formula that has the smallest possible whole number ratio of atoms in the formula. A molecular formula is the true formula of a molecule which is a whole number multiple of its empirical formula. Blooms: 2. Understand Difficulty: Easy Gradable: manual Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) Topic: Stoichiometry and Chemical Reactions   Category # of Questions Blooms: 1. Remember 25 Blooms: 2. Understand 33 Blooms: 3. Apply 29 Blooms: 4. Analyze 31 Blooms: 5. Evaluate 6 Difficulty: Easy 67 Difficulty: Hard 6 Difficulty: Medium 51 Gradable: automatic 112 Gradable: manual 12 Subtopic: Acid-Base Definitions 3 Subtopic: Atomic Number, Mass Number, Atomic Symbol, and Isotopes 20 Subtopic: Atomic Theories 8 Subtopic: Bond Polarity 8 Subtopic: Chemical Formulas 32 Subtopic: Classes of Organic Molecules (Functional Groups) 1 Subtopic: Covalent Bonding 4 Subtopic: Electron Configurations of Cations and Anions 2 Subtopic: Electronegativity 8 Subtopic: Elements and the Periodic Table 30 Subtopic: Formula Determination of Unknown Compounds (Empirical and Molecular Formulas) 8 Subtopic: Ionic Bonding and Lattice Energy 22 Subtopic: Mass Percent Composition 1 Subtopic: Molecules and Ions 27 Subtopic: Nomenclature 19 Subtopic: Periodic Classification of the Elements 25 Subtopic: Radioactivity and Nuclear Stability 1 Subtopic: Structure of the Atom 33 Topic: Acids and Bases 3 Topic: Chemical Bonding 26 Topic: Chemical Periodicity 20 Topic: Components of Matter 103 Topic: Electron Configuration 2 Topic: Nuclear Chemistry 1 Topic: Organic Molecules 1 Topic: Stoichiometry and Chemical Reactions 9