PSA 3W3 Polyatomic Ions Completion Complete each sentence or statement. 1. (4 points) The 2. (4 points) _____________________________ nitrite ion has the formula _____________________________. means ions formed from more than one atom covalently bonded to each other. 3. (4 points) The thiocyanate ion has the formula _____________________________. 4. (4 points) The ammonium ion has the formula _____________________________. 5. (4 points) The phosphate ion has the formula _____________________________. 6. (4 points) The hydroxide ion has the formula _____________________________. 7. (4 points) The carbonate ion has the formula _____________________________. 8. (4 points) The cyanide ion has the formula _____________________________. 9. (4 points) The permanganate ion has the formula _____________________________. 10. (4 points) The nitrate ion has the formula _____________________________. 11. (4 points) The acetate ion has the formula _____________________________. 12. (4 points) The dichromate ion has the formula _____________________________. Matching MATCHING Match each item with the correct statement below. a. acetate j. nitrate b. ammonium k. nitrite c. carbonate l. permanganate cyanide d. m. peroxide dichromate e. n. phosphate f. ductile o. polyatomic ions g. hydroxide p. sulfate h. hypochlorite q. thiocyanate i. malleable ____ ____ ____ ____ ____ ____ ____ ____ ____ 13. 14. 15. 16. 17. 18. 19. 20. 21. (1 point) Cr2O7-2 (1 point) NO2-1 (1 point) SCN-1 (1 point) O2-2 (1 point) MnO4-1 (1 point) ClO-1 (1 point) CN-1 (1 point) CO3-2 (1 point) CH3COO-1 Problem 22. (4 points) In 23. (10 points) Write the chemical formula for beryllium acetate 24. (10 points) Write the chemical formula for sodium permanganate 25. (10 points) Write the chemical formula for beryllium permanganate 26. (10 points) Write the chemical formula for beryllium hypochlorite 27. (4 points) In 28. (10 points) Write the chemical formula for calcium acetate 29. (10 points) Write the chemical formula for potassium thiocyanate 30. (10 points) Write the chemical formula for calcium nitrite 31. (4 points) In the following group of words, identify which one does not belong in the group and explain why: ductile, permanganate, phosphate, thiocyanate the following group of words, identify which one does not belong in the group and explain why: acetate, carbonate, cyanide, hydroxide the following group of words, identify which one does not belong in the group and explain why: malleable, permanganate, phosphate, sulfate 32. (10 points) Write the chemical formula for lithium nitrite 33. (10 points) Write the chemical formula for boron permanganate 34. (10 points) Write the chemical formula for calcium hydroxide 35. (10 points) Write the chemical formula for potassium hypochlorite 36. (10 points) Write the chemical formula for aluminum hypochlorite Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 37. (1 point) nitrate a. NO3-1 b. Cr2O7-2 c. OH-1 d. ClO-1 ____ 38. ____ 39. (1 point) Common polyatomic ions include a. permanganate b. lithium bromide c. magnesium iodide d. lithium iodide (1 point) hydroxide a. Cr2O7-2 b. CN-1 c. OH-1 d. CO3-2 ____ 40. (1 point) dichromate a. CN-1 b. NH4+1 c. Cr2O7-2 d. CO3-2 ____ 41. (1 point) Allow electricity to move when dissolved in water b. physical compounds c. covalent compounds a. ionic compounds ____ 42. (1 point) The bonds make them ductile b. metallic compounds a. physical compounds ____ 43. c. ionic compounds d. metallic compounds d. covalent compounds (1 point) ductile a. able to be drawn on paper b. able to be hammered into shapes, flexible d. able to be hammered with a non-metal ____ 44. (1 point) Taste “salty” a. metallic compounds ____ 45. c. able to be drawn into a wire (1 point) ammonium b. physical compounds c. ionic compounds d. covalent compounds a. SO4-2 b. SCN-1 c. NH4+1 d. CH3COO-1 ____ 46. (1 point) The bonds make them malleable b. ionic compounds a. covalent compounds ____ 47. c. metallic compounds (1 point) malleable a. able to be tapped into squares b. able to be drawn into a wire flexible d. able to be drawn on paper ____ 48. (1 point) Common polyatomic ions include b. calcium chloride a. calcium iodide ____ 49. (1 point) Good c. beryllium sulfide conductors of electricity b. metallic compounds a. ionic compounds ____ 50. (1 point) Groups that always go together b. polyatomic ions a. sodium chloride ____ 51. d. physical compounds (1 point) Poor c. able to be hammered into shapes, d. dichromate c. physical compounds c. aluminum fluoride d. covalent compounds d. sodium nitride conductors of electricity, even if dissolved b. ionic compounds c. physical compounds a. covalent compounds ____ 52. (1 point) Common a. carbonate ____ 53. ____ 54. ____ 55. ____ 56. polyatomic ions include b. aluminum sulfide c. beryllium chloride d. metallic compounds polyatomic ions include a. beryllium chloride b. beryllium sulfide d. beryllium sulfide (1 point) Common c. cyanide high melting points a. covalent compounds b. metallic compounds d. calcium chloride (1 point) Very do not dissolve well in water a. ionic compounds b. covalent compounds c. ionic compounds d. physical compounds c. metallic compounds d. physical compounds (1 point) Most (1 point) peroxide a. O2-2 b. NO2-1 c. NO3-1 d. MnO4-1 ____ 57. (1 point) The cations form a flexible lattice b. physical compounds a. covalent compounds ____ 58. (1 point) Common a. sulfate ____ 59. polyatomic ions include c. potassium nitride b. potassium fluoride (1 point) hypochlorite a. OH-1 b. Cr2O7-2 c. CN-1 d. ClO-1 ____ 60. c. metallic compounds (1 point) acetate a. PO4-3 b. CH3COO-1 c. SO4-2 d. SCN-1 d. ionic compounds d. magnesium oxide