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Lessons in Chemistry

鈼嗏梿By Adam Simon Levine Published 2024-05-05T19:00:50.002Z

Meta Prompt
The meta answer is a sentence consisting of seven Across entries, read top to bottom, which explains the puzzle's theme.
To celebrate the end of the school year, here's a 21x21 Sunday stumper that's not for the faint of heart! I decided to create two versions: Regular and Hard. This is the Hard (meta) version, in which the meta answer is a seven-word sentence consisting of Across answers that explains the puzzle's theme. For the Regular (non-meta) version, in which the seven words are highlighted for you, visit https://knottygrids.blogspot.com/2024/05/lessons-in-chemistry.html. Happy solving!
Adam Simon Levine knottygrids.blogspot.com
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Leaderboard (updated hourly)

  • Hector solved 2024-05-05T21:16:04.402Z
  • Cindy Weatherman solved 2024-05-05T22:00:54.167Z
  • danschwartz solved 2024-05-06T18:38:02.718Z
  • Pair O Ducks solved 2024-05-06T21:45:45.882Z
  • benchen71 solved 2024-05-07T09:07:32.365Z
  • kurtalert solved 2024-05-07T17:05:07.711Z
  • DIS solved 2024-05-07T21:06:06.214Z
  • Larry Edelstein solved 2024-05-08T01:56:58.545Z
  • Uncle Juke solved 2024-05-09T17:23:37.792Z
  • Laura M solved 2024-05-12T22:12:06.796Z
  • atsiricajr111191 solved 2024-05-14T16:37:41.307Z
  • dooiemus solved 2024-05-14T21:03:51.338Z
  • Philip Chow solved 2024-05-15T20:18:25.246Z
  • DrTom solved 2024-05-24T15:58:58.406Z
  • hoover solved 2024-05-30T13:12:52.072Z
  • KayW solved 2024-06-02T03:39:01.289Z
  • Avlan solved 2024-06-09T02:47:19.423Z

Comments

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  • Hector 馃26:24聽路聽2024-05-05T21:17:30.200Z
    Thanks, Adam!
    • kurtalert 馃17:05聽路聽2024-05-07T17:14:23.100Z
      Toughie! Thanks Adam.
      • DIS 馃26:18:29聽路聽2024-05-07T21:06:41.556Z
        Impressive construction! Thanks for posting.
        • Laura M 馃38:45聽路聽2024-05-12T22:13:46.453Z
          Very impressive!
          • DrTom 3s聽路聽2024-05-24T16:02:37.631Z
            Impressed with the construction. As soon as I started reading I saw what the clues were doing because they were so short and odd. I missed the ALL on my first submission and added ONCE (which of course was incorrect but I needed a seventh). Very inventive with your cluing, it made it that much more fun!!
            • Adam Simon Levine constructor聽路聽2024-05-26T15:56:09.184Z
              Glad you enjoyed it!
            • hoover 2s聽路聽2024-05-30T13:13:01.415Z
              IN ORDER!!!!!
              • KayW 馃25:02聽路聽2024-06-02T03:46:00.144Z
                WOW!!! OK I only took chemistry 101, so I had to look them up on a periodic table but you got ALL of them in the RIGHT ORDER! That is beyond amazing! Thanks!
                • Gutman 2s聽路聽2024-06-02T19:24:15.652Z
                  Very cool
                  1A
                  Hu谩scar ___
                  1
                  2
                  3
                  4
                  5
                  6
                  7
                  8
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                  10
                  11
                  12
                  13
                  14
                  15
                  16
                  17
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                  24
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                  30
                  31
                  32
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                  34
                  35
                  36
                  37
                  38
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                  40
                  41
                  42
                  43
                  44
                  45
                  46
                  47
                  48
                  49
                  50
                  51
                  52
                  53
                  54
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                  56
                  57
                  58
                  59
                  60
                  61
                  62
                  63
                  64
                  65
                  66
                  67
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                  74
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                  77
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                  79
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                  81
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                  93
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                  105
                  106
                  107
                  108
                  109
                  110
                  111
                  112
                  113
                  114
                  115
                  116
                  117
                  118
                  Across
                  1. 1A
                    Hu谩scar ___
                  2. 5A
                    Bibulate
                  3. 9A
                    Fully
                  4. 12A
                    Media grp.
                  5. 15A
                    Pointers
                  6. 16A
                    Speculate
                  7. 17A
                    Cooking lubricant
                  8. 18A
                    Ave. relative
                  9. 19A
                    Knox___
                  10. 20A
                    Chauvinistic attitude
                  11. 22A
                    "Tosca" inclusion
                  12. 23A
                    Vending
                  13. 24A
                    Crops repeatedly
                  14. 25A
                    Made noise
                  15. 27A
                    Corgi, otterhound
                  16. 30A
                    Zales' need
                  17. 31A
                    Graffitist's autograph
                  18. 32A
                    Gouge, e.g.
                  19. 35A
                    Binges riskily
                  20. 36A
                    "Kojak", "Rhoda"
                  21. 38A
                    Saigon revelry
                  22. 39A
                    "Yep"
                  23. 41A
                    Nordic bus.
                  24. 42A
                    Marlins, Orioles
                  25. 44A
                    Round unit
                  26. 47A
                    Arabic greeting
                  27. 48A
                    Clear display
                  28. 50A
                    Shoulder's neighbor
                  29. 52A
                    Theatrical entertainment
                  30. 53A
                    Incantation
                  31. 54A
                    X-ray examiner
                  32. 55A
                    Cough suppressant
                  33. 57A
                    Legendary apeman
                  34. 58A
                    Charles (espa帽ol)
                  35. 59A
                    Phone ruts
                  36. 61A
                    Precision marker
                  37. 63A
                    Ellipsis, underscore
                  38. 64A
                    Graphers' doodles
                  39. 67A
                    High operators?
                  40. 68A
                    Earwax remover
                  41. 72A
                    Historian's focus
                  42. 73A
                    Talk aloud
                  43. 74A
                    Wayfinder
                  44. 75A
                    Really entertaining
                  45. 76A
                    Out solo
                  46. 79A
                    Astute, understanding
                  47. 80A
                    Hairy gnawer
                  48. 81A
                    "Time ___ lunch!"
                  49. 82A
                    "Pan" buccaneer
                  50. 84A
                    Pointscoring opps.
                  51. 85A
                    American tree
                  52. 86A
                    Rampant narcissism
                  53. 89A
                    Abnormal chap
                  54. 91A
                    ___ Prescott (athlete)
                  55. 92A
                    Underhanded
                  56. 93A
                    Natural parts
                  57. 97A
                    Book: "___ Kapital"
                  58. 98A
                    Cluttered, filthy
                  59. 100A
                    Frequent migrant
                  60. 101A
                    Mythical discovery
                  61. 103A
                    Luxor's ___-Ra
                  62. 107A
                    Before, historically
                  63. 108A
                    Hanukkiah, say
                  64. 110A
                    Dishonest sham
                  65. 111A
                    Rural game
                  66. 112A
                    Consumes narcotics
                  67. 113A
                    Nailing holes?
                  68. 114A
                    Football's Long
                  69. 115A
                    Malt chaser?
                  70. 116A
                    Liquid Vietnamese
                  71. 117A
                    Tinkles (slang)
                  72. 118A
                    Oppositional guidance
                  Down
                  1. 1D
                    Hipbones
                  2. 2D
                    Hypothesis entry?
                  3. 3D
                    Loved icon
                  4. 4D
                    Biochemical ending
                  5. 5D
                    Briskness
                  6. 6D
                    Conquests
                  7. 7D
                    Nausea
                  8. 8D
                    Oldster
                  9. 9D
                    ___-Frazier
                  10. 10D
                    (Nonstandard) Educate
                  11. 11D
                    Natter angrily
                  12. 12D
                    Mattress giant
                  13. 13D
                    Aquatic lady
                  14. 14D
                    Seniors, imminently
                  15. 15D
                    Pharmacy
                  16. 16D
                    Savages
                  17. 17D
                    Cure leader?
                  18. 18D
                    Aloud's reverse
                  19. 21D
                    Send currency
                  20. 26D
                    Feasted eagerly
                  21. 28D
                    Nonelected inheritor
                  22. 29D
                    Cheesemakers' urb
                  23. 31D
                    Golfer Aoki
                  24. 32D
                    Grammyist Elliott
                  25. 33D
                    Apparently stunned
                  26. 34D
                    Subleased, equivalently
                  27. 36D
                    Knights' rides
                  28. 37D
                    Rocket___, ballad___
                  29. 40D
                    Zealous reactionaries
                  30. 41D
                    Nepali backpacker
                  31. 43D
                    Truly creepy
                  32. 44D
                    Random union
                  33. 45D
                    Rave hysterically
                  34. 46D
                    Parting declarations
                  35. 49D
                    Investment nabobs
                  36. 51D
                    Silly birds
                  37. 52D
                    Team encouragers
                  38. 54D
                    Xylophonist's equipment
                  39. 56D
                    Broadband abbr.
                  40. 58D
                    Congests entirely
                  41. 59D
                    Pharaohs' regime
                  42. 60D
                    Needlessly dramatizes
                  43. 62D
                    Suit mfrs.?
                  44. 63D
                    Expression: unsmiling
                  45. 64D
                    Gallic diva
                  46. 65D
                    Tiphys' boat
                  47. 66D
                    Disturbing yell
                  48. 67D
                    Haul off
                  49. 69D
                    Telerecording machines
                  50. 70D
                    Your best
                  51. 71D
                    Lively, upbeat
                  52. 74D
                    Wonks
                  53. 77D
                    Israelite raconteur
                  54. 78D
                    Proficiency test
                  55. 80D
                    Helpful garments
                  56. 83D
                    British Izzard
                  57. 86D
                    Radiant nugget
                  58. 87D
                    Foam replacement
                  59. 88D
                    Recipe amount
                  60. 90D
                    Totalitarian hushing
                  61. 91D
                    Photographically anonymize
                  62. 93D
                    Nibble progressively
                  63. 94D
                    Pool units
                  64. 95D
                    Announcement maker
                  65. 96D
                    Compactor material
                  66. 98D
                    Cockcrows, fancily
                  67. 99D
                    Email service
                  68. 101D
                    Mgmt. directorates
                  69. 102D
                    Noteworthy Officer
                  70. 104D
                    Resembling fairways
                  71. 105D
                    "Doable, boss!"
                  72. 106D
                    Science Guy
                  73. 109D
                    "Matrix" telekineticist
                  74. 110D
                    Decorated scholar
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