Flowers Ch.2 Exam Prep Atoms, Molecules, and Ions - Chemistry 2e Complete Test Bank by Paul Flowers. DOCX document preview.

Flowers Ch.2 Exam Prep Atoms, Molecules, and Ions

Supplemental Test Items to accompany OpenStax Chemistry. Note that not all chapters of OpenStax Chemistry have accompanying test items. Building on the community-oriented nature of OpenStax resources, we invite you to submit items to be considered for future inclusion.

Chapter 02: Atoms, Molecules, and Ions

  1. Structural isomers are considered molecules with the same ____________. (Outcome # 1,5,9) DOK 1
  2. kinds and number of atoms but a different arrangement of these atoms
  3. number of electrons and protons but a different number of neutrons
  4. molecular formula but with a different overall charge
  5. Which of the following is not a correct element name-symbol combination? (Outcome # 1) DOK 1
  6. copper, Cu
  7. arsenic, Ar
  8. gold, Au
  9. Isotopes of carbon differ with respect to the number of _________. (Outcome # 1,8) DOK 1
  10. protons
  11. neutrons
  12. electrons
  13. Elements in group 17 are considered _____________. (Outcome # 1,2) DOK 1
  14. alkali Metals
  15. halogens
  16. noble Gases
  17. Due to periodicity, which of the following elements has chemical behavior similar to that of Oxygen? (Outcome # 1,2,8) DOK 1
  18. bromine
  19. sulfur
  20. carbon
  21. Where would you expect to find a stored bottle of HCl in the laboratory? (Outcome # 5) (DOK 1)
  22. in the storage cabinet labeled strong bases
  23. in the storage cabinet labeled strong acids
  24. in the storage cabinet labeled solvents
  25. Where would you expect to find a stored bottle of NaOH in the laboratory? (Outcome # 5) (DOK 1) (Paired item 1)
  26. in the storage cabinet labeled strong bases
  27. in the storage cabinet labeled strong acids
  28. in the storage cabinet labeled solvents
  29. Which of the following would be considered a caustic base? (Outcome # 5) (DOK 1)
  30. HNO3
  31. H2SO4
  32. NaOH
  33. Elements arranged horizontally in the periodic table are in the same_____? (Outcome # 2) (DOK 1)
  34. group or family
  35. period
  36. column
  37. Which elements are considered noble gases? (Outcome # 2) (DOK 1)
  38. He, Ne, Ar
  39. H, N, O
  40. F, Cl, Br
  41. Chlorine gas is considered a _____? (Outcome # 2) (DOK 1)
  42. noble gas
  43. halogen
  44. chalcogen
  45. Oxygen gas is considered a _____? (Outcome # 2) (DOK 1) (Paired item 1)
  46. noble gas
  47. halogen
  48. chalcogen
  49. What is the correct formula for acetic acid? (Outcome # 2) (DOK 1)
  50. CH3CO2H
  51. CH3CO2-
  52. CH3CO2H2
  53. What is the correct formula for lead(II) nitrate? (Outcome # 2) (DOK 1) (Paired item 1)
  54. Pd(NO3)2
  55. Pb(NO3)
  56. Pb(NO3)2
  57. What is the name for iron(III) chloride? (Outcome # 2) (DOK 1)
  58. FeCl2
  59. FeCl3
  60. FeCl4
  61. What is the correct name for the precipitate formed when mixing potassium carbonate and nickel(II) chloride? (Outcome # 2) (DOK 2)
  62. potassium chloride
  63. nickel(II) carbonate
  64. nickel(III) carbonate
  65. Which of the following gases exists as a diatomic molecule? (Outcome # 9) (DOK 1)
  66. krypton
  67. hydrogen
  68. argon
  69. In mass spectrometry, species are separated based off their _____? (Outcome # 7) (DOK 2)
  70. mass-to-charge ratio
  71. mass
  72. charge
  73. Which statement is correct about chlorine-35 and chorine-37? (Outcome # 8) (DOK 1)
  74. They have the same number of protons and electrons, but a different number of neutrons.
  75. They have a different number of protons and electrons, but the same number of neutrons.
  76. They have the same number of protons, but a different number of electrons and neutrons.
  77. What is the overall charge on a sulfate ion? (Outcome # 8) (DOK 1)
  78. 0
  79. -1
  80. -2
  81. What is the overall charge on a phosphate ion? (Outcome # 8) (DOK 1)
  82. -2
  83. -3
  84. -1
  85. Which of the following would be considered a corrosive acid? (Outcome # 5) (DOK 1)
  86. HNO3
  87. NaOH
  88. KOH
  89. Which list of elements contains ONLY nonmetals? (Outcome # 1,9) (DOK 1)
  90. helium, carbon, gold
  91. sodium, chromium, copper
  92. phosphorus, nitrogen, oxygen
  93. The formula for potassium cyanide is KCN and the formula for calcium fluoride is CaF2. What is the formula for calcium cyanide? (Outcome # 1,7,8,9) (DOK 2)
  94. Ca2CN
  95. CaCN
  96. Ca(CN)2
  97. Using the periodic table, what is the atomic number of argon? (Outcome # 1,9) (DOK 2)
  98. 26.98
  99. 13
  100. 18
  101. Which of the following is an ionic compound? (Outcome # 1,9) (DOK 1)
  102. CO
  103. HCl
  104. Na2O
  105. Structural isomers are considered molecules with the same ____________. (Outcome # 1,9) (DOK 2)
  106. kinds and number of atoms but a different arrangement of these atoms
  107. number of electrons and protons but a different number of neutrons
  108. molecular formula but with a different overall charge
  109. The Greek philosopher Democritus phrased what word for a tiny piece of matter that cannot be divided? (Outcome # 1,9) (DOK 1)
  110. element
  111. atom
  112. electron
  113. Who provided evidence for the existence of a nucleus in an atom? (Outcome # 1,9) (DOK 1)
  114. John Dalton
  115. J.J. Thomson
  116. Ernest Rutherford
  117. Within the nucleus, the positive charge is __________. (Outcome # 1,9) (DOK 2)
  118. concentrated in the center of an atom
  119. spread evenly throughout an atom
  120. concentrated at multiple sites in an atom
  121. Which statement about subatomic particles is NOT true? (Outcome # 1,9) (DOK 2)
  122. Protons and neutrons have almost the same mass.
  123. Protons and electrons have opposite charges.
  124. Protons and neutrons have the same charge
  125. The number of protons in one atom of an element is that element’s __________. (Outcome # 1,9) (DOK 1)
  126. mass number
  127. atomic mass
  128. atomic number
  129. To calculate the number of neutrons in an atom, you would subtract (Outcome # 1,9) (DOK 1)
  130. mass number from atomic number
  131. atomic number from mass number
  132. atomic number from electron number
  133. Which of the following is not a correct element name-symbol combination? (Outcome # 1,9) (DOK 1)
  134. copper, Cu
  135. arsenic, Ar
  136. gold, Au
  137. Isotopes of carbon differ with respect to the number of _________. (Outcome # 1,9) (DOK 1)
  138. protons
  139. neutrons
  140. electrons
  141. The fact that LiBr is 7.99 % lithium and 92.01 % bromine by mass regardless of its origin is an example of _____. (Outcome # 9) (DOK 1)
  142. law of definite proportions
  143. law of conservation of mass
  144. Dalton’s atomic theory
  145. Which of the following elements form +2 ions? (Outcome # 9) (DOK 1)
  146. strontium, magnesium, calcium
  147. lithium, sodium, potassium
  148. sodium, magnesium, aluminum
  149. Which of the following elements form +1 ions? (Outcome # 9) (DOK 1)
  150. strontium, magnesium, calcium
  151. lithium, sodium, potassium
  152. sodium, magnesium, aluminum
  153. How many neutrons are in carbon-12? (Outcome # 9) (DOK 1)
  154. 6
  155. 7
  156. 8
  157. How many neutrons are in chlorine-37? (Outcome # 9) (DOK 1)
  158. 18
  159. 20
  160. 18.5
  161. Identify the chalcogen that has 18 neutrons in the nucleus. (Outcome # 9) (DOK 2)
  162. sulfur-32
  163. sulfur-33
  164. sulfur-34
  165. The chemical symbol for cobalt is _____. (Outcome # 7) (DOK 1)
  166. Co
  167. cO
  168. CO
  169. What is the chemical symbol for manganese? (Outcome # 7) (DOK 1)
  170. Mn
  171. Mg
  172. mn
  173. Which element is represented by the chemical symbol Th? (Outcome # 7) (DOK 1)
  174. thallium
  175. thorium
  176. tantalum
  177. Which element is represented by the chemical symbol Tl? (Outcome # 7) (DOK 1)
  178. tantalum
  179. thallium
  180. thorium
  181. What is an anion? (Outcome # 7) (DOK 1)
  182. An anion is defined as an atom that has lost electrons and forms a negative charge.
  183. An anion is defined as an atom that has gained electrons and forms a negative charge.
  184. An anion is defined as an atom that has gained electrons and forms a positive charge.
  185. What is a cation? (Outcome # 7) (DOK 1)
  186. A cation is defined as an atom that has lost electrons and forms a positive charge.
  187. A cation is defined as an atom that has gained electrons and forms a negative charge.
  188. A cation is defined as an atom that has gained electrons and forms a positive charge.
  189. Hafnium atom is located in which block on the periodic table? (Outcome # 7) (DOK 1)
  190. p-block
  191. d-block
  192. f-block
  193. Lanthanum atom is located in which block on the periodic table? (Outcome # 7) (DOK 1)
  194. p-block
  195. d-block
  196. f-block
  197. Determine the formula for copper(II) nitrate. (Outcome # 8) (DOK 2)
  198. Cu2NO3
  199. CuNO3
  200. Cu(NO3)2
  201. What is the name of Fe2O3? (Outcome # 8) (DOK 2)
  202. iron(II) oxide
  203. iron(III) oxide
  204. iron(IV) oxide
  205. What is the correct formula for cobalt(III) chloride? (Outcome # 8) (DOK 2)
  206. CoCl2
  207. CoCl3
  208. Co3Cl
  209. What is the correct formula for iodine monochloride? (Outcome # 8) (DOK 2)
  210. ICl2
  211. I2Cl
  212. ICl

Document Information

Document Type:
DOCX
Chapter Number:
2
Created Date:
Aug 21, 2025
Chapter Name:
Chapter 2 Atoms, Molecules, and Ions
Author:
Paul Flowers

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