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Name: ____________________________________ 1. When the equation: __Fe2 O3 (s) + __CO(g) → __Fe(l) + __CO2 (g) is correctly balanced using the smallest whole numbers, the coefficient of Fe(l) is A. 1 B. 2 C. 3 D. 4 2. More than two-thirds of the elements of the Periodic Table are classified as A. metalloids B. metals C. nonmetals D. noble gases 8. Which pair must represent atoms of the same element? A. and B. and C. D. and and 9. The correct electron dot formula for hydrogen chloride is A. B. C. D. 3. The elements of the Periodic Table are arranged in horizontal rows according to each successive element's greater A. atomic mass B. atomic radius C. number of protons D. number of neutrons 4. Given the equation: __Ca 2+ (aq) + __PO4 3− (aq) → __Ca3 (PO4 )2 (s) When the equation is correctly balanced, the sum of the total charge of the reactants is A. B. C. D. 0 +2 −3 +6 5. Which halogen has the least attraction for electrons? A. F B. Cl C. Br D. I 6. How many protons are in the nucleus of an atom of beryllium? A. 5 B. 2 C. 9 D. 4 7. All isotopes of a given element must have the same A. atomic mass B. atomic number C. mass number D. number of neutrons 15. What is the gram formula mass of Ca3 (PO4 )2 ? A. B. C. D. 135 g/mol 215 g/mol 278 g/mol 310. g/mol 10. Most nonmetals have the properties of A. high ionization energy and poor electrical conductivity B. high ionization energy and good electrical conductivity C. low ionization energy and poor electrical conductivity D. low ionization energy and good electrical conductivity 11. If an equation is balanced properly, both sides of the equation must have the same number of A. atoms B. coefficients C. molecules D. moles of molecules 12. Which formula represents a substance that contains covalent bonds? A. LiCl B. CaCl2 C. K2 O D. CO2 13. The metalloids that are included in Group 15 are antimony (Sb) and A. N B. P C. A s D. Bi 14. Which formula represents a compound that is formed primarily by sharing electrons? A. KCl B. CaCl2 C. CrCl3 D. CCl4 22. The atomic number of any atom is equal to the number of A. neutrons in the atom, only B. protons in the atom, only C. neutrons plus protons in the atoms D. protons plus electrons in the atom 16. When an atom of chlorine forms an ionic bond with an atom of sodium, the atom of chlorine A. loses an electron B. loses a proton C. becomes an ion with a smaller radius than the atom of chlorine D. becomes an ion with a larger radius than the atom of chlorine 17. When metals form ions, they tend to do so by A. losing electrons and forming positive ions B. losing electrons and forming negative ions C. gaining electrons and forming positive ions D. gaining electrons and forming negative ions 18. What is the gram formula mass of K2 CO3 ? A. B. C. D. 138 g 106 g 99 g 67 g 19. When the equation __C8 H16 + __O2 → __CO2 + __H2 O is correctly balanced using the smallest whole number coefficient, the coefficient of O2 is A. B. C. D. 1 8 12 16 20. Within Period 4 of the Periodic Table, which of the following groups contains the element with the highest electronegativity? A. 1 (IA) B. 2 (IIA) C. 15 (VA) D. 17 (VIIA) 21. Which term refers to the region of an atom where an electron is most likely to be found? A. orbital B. orbit C. quantum D. spectrum 23. Which element is an active nonmetal? A. neon B. oxygen C. zinc D. chromium 24. The formula for calcium cyanide is A. CaCN2 B. CaSCN2 C. Ca(CN)2 D. Ca(SCN)2 25. Given the unbalanced equation: ___Al + ___CuSO4 → ___Al2 (SO4 )3 + ___Cu When the equation is balanced using the smallest wholenumber coefficients, what is the coefficient of Al? A. 1 B. 2 C. 3 D. 4 26. An atom in the ground state contains 8 valence electrons. This atom is classified as a A. metal B. semimetal C. noble gas D. halogen 27. Which element can form a chloride with a general formula of MCl2 or MCl3 ? A. B. C. D. Fe Al Mg Zn 28. Given the equation: __FeCl2 + __Na2 CO3 → __FeCO3 + __NaCl When the equation is correctly balanced using the smallest whole numbers, the coefficient of NaCl is A. B. C. D. 6 2 3 4 29. Given the unbalanced equation: What is the coefficient of O2 when the equation is balanced correctly using the smallest whole-number coefficients? A. B. C. D. 1 2 3 4 30. In a sample of the element potassium, each atom has A. 19 protons B. 20 neutrons C. 39 protons and neutrons D. 39 neutrons 31. Which substance is composed of atoms that all have the same atomic number? A. magnesium B. methane C. ethane D. ethene 32. An ion with 5 protons, 6 neutrons, and a charge of 3+ has an atomic number of A. 5 B. 6 C. 8 D. 11 33. To which group do the alkaline earth metals belong? A. 1 B. 2 C. 11 D. 12 34. Which compound contains ionic bonds? A. N2 O B. Na2 O C. CO D. CO2 36. Which of the following atoms has the largest atomic radius? A. Na B. K C. Mg D. Ca 37. Which particles account for most of the mass of the atom? A. protons and neutrons B. protons and electrons C. neutrons and electrons D. neutrons and positrons 38. Which compound represents the compound aluminum iodide? A. AlI B. AlI3 C. Al3 I D. Al3 I3 39. Which formula represents an ionic compound? A. NaCl B. N2 O C. HCl D. H2 O 40. When metals combine with nonmetals, the metallic atoms tend to A. lose electrons and become positive ions B. lose electrons and become negative ions C. gain electrons and become positive ions D. gain electrons and become negative ions 41. Which element has an atom with the electron configuration 2–8–8–2? A. Mg B. Ni C. Ca D. Ge 42. What is the symbol for an atom containing 20 protons and 22 neutrons? A. 35. The correct formula for calcium phosphate is A. CaPO4 B. Ca2 (PO4 )3 C. Ca3 P2 D. Ca3 (PO4 )2 43. In an experiment, alpha particles were used to bombard gold foil. As a result of this experiment, the conclusion was made that the nucleus of an atom is A. smaller than the atom and positively charged B. smaller than the atom and negatively charged C. larger than the atom and positively charged D. larger than the atom and negatively charged B. C. D. 49. Which statement describes a chemical property of the element iodine? A. Its crystals are a metallic gray. B. It dissolves in alcohol. C. It forms a violet-colored gas. D. It reacts with hydrogen to form a gas. 44. What is the correct formula for chromium (III) oxide? A. CrO3 B. Cr3 O C. Cr2 O3 D. Cr3 O2 45. Which electron-dot symbol correctly represents an atom of its given element? C. A. D. B. 46. Which element is in Group 2 (IIA) and Period 7 of the Periodic Table? A. magnesium B. manganese C. radium D. radon 47. What is the total number of neutrons in an atom of 50. A chemical bond between two atoms results from a simultaneous A. attraction by the protons for the neutrons B. attraction by the two nuclei for the electrons C. repulsion by the valence electrons of the atoms D. repulsion by the protons in the two nuclei 51. Which formula represents lead (II) phosphate? A. PbPO4 B. Pb4 PO4 C. Pb3 (PO4 )2 D. Pb2 (PO4 )3 52. When the equation: __Al2 (SO4 )3 + __ZnCl2 → __AlCl3 + __ZnSO4 is correctly balanced using the smallest whole number coefficients, the sum of the coefficients is A. B. C. D. 9 8 5 4 ? A. B. C. D. 82 125 207 289 48. As the elements Li to F in Period 2 of the Periodic Table are considered in succession, how does the relative electronegativity and the atomic radius of each successive element compare? A. The relative electronegativity decreases, and the atomic radius decreases. B. The relative electronegativity decreases, and the atomic radius increases. C. The relative electronegativity increases, and the atomic radius decreases. D. The relative electronegativity increases, and the atomic radius increases. 56. Spectral lines produced from the radiant energy emitted from excited atoms are thought to be due to the movements of electrons A. from lower to higher energy levels B. from higher to lower energy levels C. in their orbitals D. out of the nucleus 57. Which element is a member of the halogen family? A. K B. B C. I D. S 53. Given the electron dot diagram: The valence electrons represented by the electron dot diagram could be those of atoms in Group A. B. C. D. 13 15 3 16 54. Which formula represents a molecular substance? A. CaO B. CO C. Li2 O D. Al2 O3 55. What is the formula for sodium oxalate? A. NaClO B. Na2 O C. Na2 C2 O4 D. NaC2 H3 O2 59. What is the gram formula mass of Li2 SO4 ? A. B. C. D. 54g 55g 110g 206g 60. What is the correct formula for ammonium carbonate? A. NH4 (CO3 )2 B. NH4 CO3 C. (NH4 )2 (CO3 )2 D. (NH4 )2 CO3 58. What is the formula mass of Al2 (SO4 )3 ? A. B. C. D. 123 150. 214 342