CHMY 121 IN 1st Edition Exam #2 Study GuideA. The largest alkali metal listed below is__________. A. Li B. Na C. K D. RbB. NH4+ has how many valence electrons? A. 8 B. 9 C. 10 C. What is the major intermolecular force in NH3? A. Dipole B. Hydrogen bonding C. London D. Its an Ionic Compound D. KF has what type of bond? A. Ionic B. Polar Covalent C. Nonpolar Covalent D. Nonpolar Ionic E. What is the bond angle around the central atom in CH2Cl2? A. 180 º B. 90 º C. 120 º D. 109.5 º F. In the compound Ni2S3, what is the charge on the transition metal? A. +2 B. -2 C. +3 D. -3 G. Which of the following has the ability of being an ionic solid? A. Cu (s) B. MgOC. H2O D. CO2H. Which of the following has the highest boiling point? A. CH3CH3B. NH3C. CH4D. CH3F9. Ionic bonds are characterized by____________. a. A metal and nonmetal sharing electrons equally b. Two metals losing electrons c. A metal and nonmetal losing electrons d. A metal losing electrons and a nonmetal gaining electrons 10. Why does H2O have a partial negative charge ( −)? a. Its polar b. Its nonpolar c. Its ionic 11. Which of the following molecules has the electron configuration of1s22s22p63s23p64s23d7? a. Rh b. Ni c. Co d. Fe 12. What is the molecular shape of CH2O? a. Tetrahedral b. Bent c. Linear d. Trigonal Planar 13. What is the name of Ni(CN)2? a. Nickel Cyanide b. Nickel (II) Cyanide c. Nickel DicarbonDinitrided. Nickel (II) DicarbonDinitride14. How many lone pairs does N have in NH3? a. 3 b. 2 c. 1 d. 0 15. What is the formula of the compound formed between beryllium and fluorine? a. BeF2b. Be2F c. BeFd. Be2F216. The most electronegative atom on the periodic table is_________. a. Cs b. H c. At d. F 17. In the compound Ni(CN)2, what is the charge on the transition metal? a. +2b. -2 c. +3 d. -3 18. CO32- has how many valence electrons? a. 22 b. 26 c. 24 d. 20 19. What is the major intermolecular force in MgO? a. Hydrogen bonding b. Dipole c. London d. Its an Ionic Compound 20. Ionization energy on the periodic table increases________. a. To the Right and Down b. To the Right and Up c. To the Left and Down d. To the Left and Up 21. How many bonds and lone pairs does O have in CH3OH? a. 2 bonds and 2 lone pairs b. 1 bond and 1 lone pair c. 3 bonds and 1 lone pair d. 4 bonds and 0 lone pairs 22. What is the formula of the compound formed between magnesium and oxygen? a. Mg2O b. MgO2c. MgOd. Mg2O223. Covalent bonds are characterized by____________. a. Two nonmetals losing electrons b. Two nonmetals sharing electrons in a bond c. A metal and nonmetal losing electrons d. A metal and a nonmetal sharing electrons in a bond 24. What is the molecular shape of CH3OH? a. Tetrahedral b. Trigonal Planar c. Bent d. Linear 25. Which of the following has the 3rd highest boiling point? a. CH3CH2CH2CH3b. CH3CH3c. H2O d. CH426. What is the name of the molecular shape of H2O? a. Tetrahedral b. Trigonal Planar c. Bent d. Linear 27. How many lone pairs does C have in CH3F? a. 0 b. 1 c. 2 d. 3 28. HCl has what type of bond? a. Ionic b. Polar Covalent c. Nonpolar Covalent d. Nonpolar Ionic 29. Which atom(s) in CH3Cl has a partial negative charge ( −)? a. C b. C and H c. C, H and Cld. Cle. Cl and H f. H 30. Which of the following molecules has the electron configuration of [Xe]6s24f145d9? a. Au+b. Hg+c. Pt+31. What is the name of ZnO? a. Zinc (II) Oxide b. Zinc (VI) Oxide c. Zinc (IV) Oxide d. Zinc Oxide 32. CH3OH has how many valence electrons? a. 13 b. 16 c. 14 33. What are the bond angles around the central atom in carbon dioxide? a. 180 º b. 90 º c. 120 º d. 109.5 º 34. Which of the following cations has the electron configuration of [Kr] 5s24d5? a. Tcb. Ru-c. Mo+d. Rh2+35. In the compound VO2, what is the charge on the transition metal? a. +2 b. -2 c. +4 d. -4 36. What is the formula of the compound formed between potassium and bromine? a. K2Br b. KBrc. KBr2d. K2Br237. Which two elements have the most similar physical properties? a. Cl and Br b. Cl and S c. S and P d. Li and Be 38. How many bonds and lone pairs does C have in CH2O? a. 0 double bond, 2 single bonds and 2 lone pairs b. 1 double bond, 2 single bonds and 0 lone pair c. 2 double bonds, 2 single bonds and 0 lone pair d. 0 double bond, 4 single bonds and 0 lone pair 39. Ionic bonds are characterized by____________. a. A metal and a nonmetal held together by a bond and equal sharing ofelectrons b. A metal and a nonmetal held together by a bond and unequal sharing ofelectrons c. A metal and a nonmetal held together with partial charges d. A metal and a nonmetal held together with full charges 40. What is the formula of the compound formed between strontium and nitrogen? a. SrNb. Sr2N3c. SrN2d. Sr3N241. In the compound K2Cr2O7, what is the charge on the transition metal? a. +12 b. +6 c. -12 d. -6 42. Which atom(s) in CH2FCl has a partial positive charge ( +)? a. F b. F and Clc. F, Cl and H d. Cle. Cl and H f. H g. C h. C and H i. C, H and F j. C, H, F and Cl43. How many valence electrons does CH3CHClOH possess? a. 26 b. 30 c. 15 44. What is the major intermolecular force in CH3CH3? a. Hydrogen bonding b. Dipole c. London 45. Which of the following anions has the electron configuration of 1s22s22p63s23p6? a. Arb. S2+c. K-d. Cl-46. What is the bond angle around the central atom in NH3? a. 180 º b. 107 º c. 120 º d. 109.5 º 47. What is the name of Cr2S3? a. Chromium Sulfide b. Chromium (II) Sulfide c. Chromium (III) Sulfide d. Chromium Sulfate 48. In CH3OH, which atom has the partial negative charge? a. O b. H3c. C d. H 49. Which statement concerning network solids is true? a. They are covalent substances. b. They have high melting points. c. They are large network molecules held by covalent compounds. d. All of the above are true. 50. Nickel(IV) phosphate has the chemical formula_________. a. NiP4b. Ni(PO4)4c. Ni4P d. Ni4(PO4) e. Ni3P4f. Ni3(PO4)4g. Ni4P3h. Ni4(PO4)351. What is the major intermolecular force in CO2? a. Hydrogen bonding b. Dipole c. London d. Its an Ionic Compound 52. Which of the following molecules has the strongest ionic lattice? a. MgOb. NaClc. KBr53. Which of the following chemical substances has the lowest boiling point?(consider size and intermolecular forces) a. CH2FCl b. CH3CH2CH3c. CH3CH3d. CH3OH 54. Why does H2O have a dipole? a. …