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The document specifies time allocations for Section I multiple-choice and Section II free-response parts, including scoring-related information and a key rule that calculators are not permitted in the listed section. It includes general instructions for answering on a separate answer sheet, example-response formatting, and a penalty for incorrect guessing. A detailed period table is provided for student reference.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ap-chemistry-released-exam-1999-exam-instructions-and-question-types/344207/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ap-chemistry-released-exam-1999-exam-instructions-and-question-types/344207.png","ImageObject",300,407,{"name":92,"@type":93},"Quinn","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-03","2026-09-22",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",15,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"How long is the 1999 AP Chemistry exam, and how is the time split?","Question",{"text":113,"@type":114},"The exam allows three hours total. 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For correction against haphazard guessing, one-fourth of the number of questions answered incorrectly is subtracted from the number answered correctly.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},344207,1790505797,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},962075114765,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","# RELE A SE D EXA M\n\n1999  \n# AP°Chemistry\n\n## CONTAINS:\n\n·Multiple-Choice Questions and Answer Key  \n·Free-Response Questions,Scoring Guidelines,and Sample Student Responses with Commentary  \n·Statistical Information about StudentPerformance on the 1999 Exam  \nAdvanced Placement Program°  \nCHEMISTRY  \nThree hours are allotted for this examination.One hour and 30 minutes are allotted for Section I,which consists ofmultiple-choice questions.For Section II,Part A,40 minutes are allotted;for Section II,Part B,50 minutes are allotted.Section I is printed in this examination booklet.Section II is printed in a separate booklet.  \nNO CALCULATORS MAY BE USED IN THIS SECTION OF THE EXAMINATION.  \n## SECTION I\n\nTime—1 hour and 30 minutesNumber of questions—75Percent of total grade —45  \nThis examination contains 75 multiple-choice questions and 5 survey questions.Therefore,pleasebe careful to fill in only the ovals that are preceded by numbers 1 through 80 on your answer sheet.NO CALCULATORS ARE ALLOWED.  \n## General Instructions\n\nDO NOT OPEN THIS BOOKLET UNTIL YOU ARE INSTRUCTED TO DO SO.  \nINDICATE ALL YOUR ANSWERS TOQUESTIONS IN SECTIONION THE SEPARATE ANSWER SHEET.No credit will be given for anything written in this examination booklet,but you may use the booklet for notes orscratchwork.After you have decided which of the suggested answers is best,COMPLETELY fill in the correspondingoval on the answer sheet.Give only one answer to each question.If you change an answer,be sure that the previousmark is erased completely.  \nExample:  \nSample Answer  \nChicago is a  \n(A)state  \n(B)city  \n(C)country  \n(D)continent  \n(E)village  \nMany candidates wonder whether or not to guess the answers to questions about which they are not certain.In thissection of the examination,as a correction for haphazard guessing,one-fourth of the number of questions you answerincorrectly will be subtracted from the number of questions you answer correctly.It is improbable,therefore,that mereguessing will improve your score significantly;it may even lower your score,and it does take time.If,however,you arenot sure of the correct answer but have some knowledge of the question and are able to eliminate one or more of theeanswer choices as wrong,your chance of getting the right answer is improved,and it may be to your advantage to answersuch a question.  \nUse your time effectively,working as rapidly as you can without losing accuracy.Do not spend too much time onquestions that are too difficult.Go on to other questions and come back to the difficult ones later if you have time.It isnot expected that everyone will be able to answer all the multiple-choice questions.  \nCopyright ◎1999 College Entrance Examination Board and Educational Testing Service.All rights reserved.Certain test materials are copyrighted solely in the name of ETS.  \nSECTION OF THE EXAMINATION.  \n\n| 1  \u003Cbr>H   | PERIODIC TABLE OF THE ELEMENTS   |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2  \u003Cbr>He  \u003Cbr>4.0026   |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 0379  \u003Cbr>Li  \u003Cbr>6.941   | 4  \u003Cbr>Be  \u003Cbr>9.012   |  |  |  |  |  |  |  |  |  |  | 5  \u003Cbr>B  \u003Cbr>10.811   | 6  \u003Cbr>C  \u003Cbr>12.011   | 7  \u003Cbr>N  \u003Cbr>14.007   | 8  \u003Cbr>0  \u003Cbr>16.00   | 9  \u003Cbr>F  \u003Cbr>19.00   | 10  \u003Cbr>Ne  \u003Cbr>20.179   |\n| 11  \u003Cbr>Na  \u003Cbr>22.99   | 12  \u003Cbr>Mg  \u003Cbr>24.30   |  |  |  |  |  |  |  |  |  |  | 13  \u003Cbr>Al  \u003Cbr>26.98   | 14  \u003Cbr>Si  \u003Cbr>28.09   | 15  \u003Cbr>P  \u003Cbr>30.974   | 16  \u003Cbr>S  \u003Cbr>32.06   | 17  \u003Cbr>Cl  \u003Cbr>35.453   | 18  \u003Cbr>Ar  \u003Cbr>39.948   |\n| 19  \u003Cbr>K  \u003Cbr>39.10   | 20  \u003Cbr>Ca  \u003Cbr>40.08   | 21  \u003Cbr>Sc  \u003Cbr>44.96   | 22  \u003Cbr>Ti  \u003Cbr>47.90   | 23  \u003Cbr>V  \u003Cbr>50.94   | 24  \u003Cbr>Cr  \u003Cbr>52.00   | 25  \u003Cbr>Mn  \u003Cbr>54.938   | 26  \u003Cbr>Fe  \u003Cbr>55.85   | 27  \u003Cbr>Co  \u003Cbr>58.93   | 28  \u003Cbr>Ni  \u003Cbr>58.69   | 29  \u003Cbr>Cu  \u003Cbr>63.55   | 30  \u003Cbr>Zn  \u003Cbr>65.39   | 31  \u003Cbr>Ga  \u003Cbr>69.72   | 32  \u003Cbr>Ge  \u003Cbr>72.59   | 33  \u003Cbr>As  \u003Cbr>74.92   | 34  \u003Cbr>Se  \u003Cbr>78.96   | ","cbCaieAn6dFuKhkC","https://ap.wps.com/l/cbCaieAn6dFuKhkC","pdf",6793042,78,"English","# General Instructions\n## Section I - Multiple-Choice\n## Section II - Free-Response (Part A and Part B)\n## Answering and Scoring Notes\n## Periodic Table Reference","[{\"question\":\"How long is the 1999 AP Chemistry exam, and how is the time split?\",\"answer\":\"The exam allows three hours total. Section I (multiple-choice) uses one hour and 30 minutes, while Section II is split into Part A (40 minutes) and Part B (50 minutes).\"},{\"question\":\"Are calculators allowed during the exam?\",\"answer\":\"Calculators may not be used in the specified section of the examination, as stated in the instructions.\"},{\"question\":\"How should students record answers and handle guessing?\",\"answer\":\"Answers for Section I must be indicated on the separate answer sheet by filling the corresponding ovals. For correction against haphazard guessing, one-fourth of the number of questions answered incorrectly is subtracted from the number answered correctly.\"}]","AP Chemistry Released Exam 1999 - Exam Instructions and Question Types | PDF",1790053220,197]