2008 U. S. NATIONAL CHEMISTRY OLYMPIAD NATIONAL EXAM – PART 1 Prepared by the American Chemical Society Olympiad Examinations Task Force OLYMPIAD EXAMINATIONS TASK FORCE…

Not valid for use as an USNCO Olympiad National Exam after May 1, 2007. Page 1 2007 U. S. NATIONAL CHEMISTRY OLYMPIAD NATIONAL EXAM—PART II Prepared by the American Chemical…

Junior problems J319. Let 0 = a0 < a1 < · · · < an < an+1 = 1 such that a1 + a2 + · · ·+ an = 1. Prove that a1 a2 − a0 + a2 a3 − a1 + · · ·+ an an+1…

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By MARJORIE NEEDHAM Middlebury Parks and Recreation Director Betty Proulx has been learning about Rett Syndrome in the year and a half since her grand- daughter Kaley, 4,…