2017 ap chemistry free response answers

NOTE: This is a modified version of the 2017 AP Chemistry Exam. This exam ... Attempts by students to use the calculator to remove exam questions and/or answers ...

AP ChemistryAP Chemistry 2017 ExamFree Response #2www.mrayton.comQuestions 3–8 are short free-response questions that require about 6 minutes each to answer. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each. Read each question carefully and completely. Stop working. Close your booklet and put your answer sheet on your desk, face up. Make sure you have your AP number label and an AP Exam label on page 1 of your answer sheet. I will now collect your answer sheet. Collect an answer sheet from each student. Check that each answer sheet has an AP number label and an AP Exam label. Then say:AP® Chemistry 2013 Free-Response Questions . About the College Board . The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association isThe AP Chemistry Exam will test your understanding of the scientific concepts covered in the course units, as well as your ability to design and describe chemical experiments. Starting with the 2023 exam, a scientific or graphing calculator is recommended for use on both sections of the exam. You will be provided with a periodic table and a ...Ahmed Aldwiri. 7 years ago. Part A. Determine the balanced chemical equation for this reaction. C8H18 (g)+O2 (g)→CO2 (g)+H2O (g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.Watch as Sal solves free response questions from past AP Calculus exams. This is a good preparation for your upcoming exam! ... 2017 AP Calculus AB/BC 4b (Opens a modal) 2017 AP Calculus AB/BC 4c (Opens a modal) AP Calculus BC 2015. Learn. 2015 AP Calculus BC 2a (Opens a modal)

2017 AP ® SEMINAR FREE-RESPONSE QUESTIONS AP SEMINAR PART A Suggested time — 30 minutes. Directions: Read the passage below and then respond to the following three questions. 1. Identify the author’s argument, main idea, or thesis. (3 points) 2. 2017 AP Chemistry Free Response Questions: Free response question #7 (titration/galvanic cell problem) solution video edited and recorded by SpotVids. Not en...AP Chemistry 2017 Free Response Questions - Complete Paper (pdf) 2017 AP Chemistry Free Response Question 1. Carbon tetrachloride, CCl 4 (g), can be synthesized according to the reaction represented above. …. See Video for Question 2. Answer the following questions about the isomers fulminic acid and isocyanic acid. …. See Video for Question 3.AP Chemistry 2017 Free-Response Questions 1 day ago collegeboard.org. Web Questions 1–3 are long free-response questions that require about 23 minutes each to …7 Questions Time—1 hour and 45 minutes . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are AP Chemistry FRQ 2018 Draft Answers and Projected Points Kaleb Underwood 1. (a) The oxidation number of Cl is +1 1 point for the correct oxidation number (b) 0.500 𝑎2 2 3×0.10000 =0.0500 𝑎2 2 3 0.0500 𝑎2 2 3× 158.1 1 =7.91 𝑎2 2 3Question 1 CS2(g) + 3 Cl2(g) Carbon tetrachloride, CClig), can be synthesized according to the reaction represented above. A chemist runs the reaction at a constant temperature of 120 Cina rigid 25.0 L container. Chlorine gas, Cl2(g), is initially present in the container at a pressure of 0.40 atm.308 308 CRACKING THE AP CHEMISTRY EXAM GO ON TO THE NEXT PAGE Questions 4–6 refer to the following configurations. (A) 21s 2s22p6 (B) 21s2 2s 2p6 3s2 (C) 1s2 2s22p6 3s23p4 (D) 21s 2s22p6 3s23p6 (E) 21s2 2s22p6 3s 3p6 4s2 4. The ground state configuration of an atom of a

AP Chem 2013.pdf. Report. Share. Download. Note: This document is not a complete practice exam. Rather, it is a compilation of questions from the 2013 AP Chemistry International Exam that support the learning objectives of the redesigned AP course. Questions that do not support this course have been removed. This publication may be …Compare you answers to the published scoring guidelines to approximate how many points you would earn. Then study the correct answers! 2022 FRQs 2014 – 2021 FRQs: Pre 2014: FRQs from earlier than 2014 can be found in pdf form by a simple web search with the year, for example “AP Chemistry Free Response pdf 2012”. Learn your reactions!Practice for the AP Exams. The best way to prepare for an AP Exam is to participate in your AP class. It also helps to set aside consistent study time, complete all assignments from your teacher, and become familiar with the exam by practicing with exam questions created by AP. On AP Central, we release the free-response questions for exams ...AP Chemistry 2017 Exam Free Response #2. Mr. Ayton. 4.81K subscribers. 418 views 2 years ago AP Chemistry.agree or disagree with the student’s claim? Justify your answer in terms of VSEPR theory. (h) The student also finds that all four P—O bonds in phosphate have a bond length of 162.5 pm. Which diagram is consistent with this finding? Justify your answer. (i) The student generates the following particulate diagram of an aqueous solution

Ochai kansas.

Oct 30, 2011 · 2017 AP Chemistry MC Exam Answer Sheet Homework: 2021 AP Chemistry Practice Exam FR (Due on 3/28) ... Go through past AP Free Response Questions or AP Classroom. AP® CHEMISTRY 2019 SCORING GUIDELINES Question 1 The compound urea, H2NCONH2, is widely used in chemical fertilizers. The complete Lewis electron-dot diagram for the urea molecule is shown above. (a)Identify the hybridization of the valence orbitals of the carbon atom in the urea molecule. sp 2 1 point is earned for the correct answer.not applied to numerical answers. However, in some AP® PHYSICS 2017 SCORING GUIDELINES General Notes About 2017 AP Physics Scoring Guidelines 1. The solutions contain the most common method of solving the free-response questions and the allocation of points for this solution. Some also contain a common alternate solution. Other methods ofAP® STATISTICS 2017 SCORING GUIDELINES Question 1 (continued) Partially correct (P) if the response includes only two of the three components. Note: If the response identifies the slope as -16.46 (the intercept value), the second component is satisfied only if the response states that for each one-meter increase in length there is a decreaseAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Section II: Free-Response Questions. Multiple-Choice Answer Key. Free-Response Scoring Guidelines. Scoring Worksheet. Question Descriptors and Performance Data. Note: This publication shows the page numbers that appeared in the 2017 −18 AP Exam Instructions book and in the actual exam. This publication was not repaginated to begin with page 1.

Answer the following questions relating to Fe and its ions, Fe 2+ and Fe 3+. (a) Write the ground-state electron configuration of the Fe 2+ ion. See Video for Question 4. The table above gives the molecular structures and boiling points for the compounds CS 2 and COS. (a) In terms of the types and relative strengths of all the molecular forces ...2017 AP ® COMPUTER SCIENCE A FREE-RESPONSE QUESTIONS COMPUTER SCIENCE A SECTION II Time—1 hour and 30 minutes . Number of questions—4. Percent of total score—50AP ® Chemistry 2021 Free-Response Questions . Begin your response to . QUESTION 1 . on this page. CHEMISTRY . SECTION II . Time—1 hour and 45 minutes 7 Questions . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each.AP ® Chemistry 2021 Free-Response Questions . Begin your response to . QUESTION 1 . on this page. CHEMISTRY . SECTION II . Time—1 hour and 45 minutes 7 Questions . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each.CHEMISTRY . Section II 7 Questions . Time—90 minutes YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 20 minutes each to answer and are worth 10 points each. Questions 4–7 are short free-response questions that require about 7 minutes each to …The AP Chemistry Exam will test your understanding of the scientific concepts covered in the course units, as well as your ability to design and describe chemical experiments. Starting with the 2023 exam, a scientific or graphing calculator is recommended for use on both sections of the exam. You will be provided with a periodic table and a ...Job interviews can be tricky, especially when you get hit with the dreaded “tell me about yourself” portion. There are a few things you should always include in your response, but it’s also a good time to cleverly work in things that point ...The free-response section of the AP Chemistry test can be daunting. It consists of seven questions–three long and four short–that you will have 105 minutes to answer. It is suggested that you spend 7 minutes on each short questions and 25 minutes on each long question. You will be able to use a calculator and the formula sheets …Exam Format. As you know, the FRQ section on the AP Chem exam is 7 questions long (3 long, 4 short answer questions). You will have 1 hour and 45 minutes to complete the section. Your score on this section equates to 50% of your total exam score. Here is a clip of Dylan Black, a chemistry streamer, going over the format of the exam as a whole.

AP® Chemistry 2012 Scoring Guidelines The College Board The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association is

Advanced Placement Chemistry 1997 Free Response Questions 6) Explain each of the following obsevations using principles of atomic structure and/or bonding. a) Potassium has a lower first-ionization energy than lithium. b) The ionic radius of N 3-is larger than that of O 2-. c) A calcium atom is larger than a zinc atom.2017 AP Chemistry MC Exam Answer Sheet Homework: 2021 AP Chemistry Practice Exam FR (Due on 3/28) ... Go through past AP Free Response Questions or AP Classroom.These practice problems for AP® Chemistry will help you study for the test, and get a five! http://www.tdwscience.com/apchem These multiple choice problems a...A band of imaginary AP chemistry students help a peer solve the AP Chemistry 2017 free response in his mind!Ap chemistry frq 2017 - Stuffs for ap chem hw assignment and frq - 2017 AP Chemistry Free-Response - Studocu Southern New Hampshire University University of Massachusetts Lowell University of California Los Angeles Silver Creek High School (Colorado) Miami Dade College University of Houston-Clear Lake Biology (BIOL 1409)mass percent based on the answer to part (g). (i) If the oxidation of the Fe(s) in the original sample was incomplete so that some of the 7 .531 g of product was . FeO(s) instead of Fe. 2. 0. 3 (s), would the calculated mass percent of . Fe(s) in the original sample be higher, lower, or the same as the actual mass percent of . Fe(s)? Justify ...Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each. Questions 4–7 are short free-response questions that require about 9 minutes each to answer ... 2018 AP ® CHEMISTRY FREE-RESPONSE QUESTIONS. in the solution, the student titrates a sample of the solution with. MnO. 4 ...2017 AP Chemistry MC Exam Answer Sheet Homework: 2021 AP Chemistry Practice Exam FR (Due on 3/28) ... Go through past AP Free Response Questions or AP Classroom.AP Chemistry 2019 Draft Answers. PLEASE NOTE: Any of my comments below about how your individual answers might be graded, are highly speculative – you should not take them as fact. Overall, another crushingly easy exam. Things have changed a lot since 1971, question 14 (the first question here) was asked on the exam, but the 2019 operational …

Wnit ku.

Kit cole.

The answer to the riddle, “What demands an answer but asks no question?” is a telephone or a doorbell. The riddle is making a pun on the word answer. Instead of a spoken reply, the word is used to mean an action in response to some event.AP Chemistry 2017 FRQ answers. These are the answers I worked out for them, please disagree/agree with me below: 1Ai) 0.31mol cl2 II) 7.9g cs2. Bi) more collisions Bc higher frequency at higher temperature. Also more effective collisions taking place Bii) I drew the line below the curve. ci) cl-s-s-cl with no double bonds, just dots filled ...Free-Response Questions. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info ...AP® CHEMISTRY 2019 SCORING GUIDELINES Question 1 The compound urea, H2NCONH2, is widely used in chemical fertilizers. The complete Lewis electron-dot diagram for the urea molecule is shown above. (a)Identify the hybridization of the valence orbitals of the carbon atom in the urea molecule. sp 2 1 point is earned for the correct answer. All six science practices are assessed in the free-response section with the following exam weighting: Practice 1: Models and Representations 2–4%. Practice 2: Question and Method 10–16%. Practice 3: Representing Data and Phenomena 8–16%. Practice 4: Model Analysis 5–9%. Practice 5: Mathematical Routines 43–53%.Free-Response Questions. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info ...2017 AP ® COMPUTER SCIENCE A FREE-RESPONSE QUESTIONS COMPUTER SCIENCE A SECTION II Time—1 hour and 30 minutes . Number of questions—4. Percent of total score—50 AP Chemistry Sample Student Responses and Scoring Commentary Inside: Free Response Question 1 ... +1 1 point is earned for the correct answer. (b) Calculate the number of grams of Na2S20 3 needed to prepare 100.00 mL of 0.500 M NazS20 3(aq). 0.500 mol Na2S20 3 158.10 g Na2S20 3May 4, 2017 · The 2014 AP Chemistry free response had a similar question on the last problem. In looking at the scoring guidelines, it seems that they do want a full justification, stating that an increase in temperature increases the kinetic energy. And it seems like they like references to activation energy. AP ® Chemistry Sample Student Responses ... Question 1: Long Answer . 10 points (a) For the correct expression: [H O ][HCOO ] 3: a [HCOOH] K ... Directions: Questions 1-3 are long free-response questions . that . require . about . 23 minutes each to answer . and . are worth 10 points each. Questions ….

1. Answers must be presented in sentences, and sentences must be cogent enough for the response’s meaning to come through. response’s score, but spelling must be close enough that the reader is convinced of the word. 2. Do not score notes made on the question section of the booklet. Score only what has been writtenLooking for practice questions? Albert has hundreds of AP-aligned AP® Chemistry practice questions and free response questions for you to study as you prepare for your AP® exam. Study on the go, anytime anywhere with Albert. In the 2015-2016 school year, students who used Albert for AP® Chem beat the national pass rates by 14.26%.AP® CHEMISTRY 2015 FRQ ANSWERS (submitted by Michael Farabaugh on 05/07/15) Question 1 …/// The reaction involving ZnO(s) should be reversed and multiplied by 2. This sign of the reduction potential for the half-reaction is changed, but the voltage is not doubled. The reaction involving O2 does not have to be changed.All six science practices are assessed in the free-response section with the following exam weighting: Practice 1: Models and Representations 2–4%. Practice 2: Question and Method 10–16%. Practice 3: Representing Data and Phenomena 8–16%. Practice 4: Model Analysis 5–9%. Practice 5: Mathematical Routines 43–53%.CHEMISTRY . Section II . 7 Questions . Time—1 hour and 45 minutes . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each. Questions 4–7 are short free-response questions that require about 9 minutes …AP® Chemistry 2011 Scoring Guidelines ... [M2+] and molar solubility = 2.7 × 10−7 1 point is earned for an answer M Because 7.0 × 10−6 M > 2.7 × 10−7 M, M ...AP® Chemistry 2010 Free-Response Questions The College Board ... Be sure to write all your answers to the questions on the lined pages following each question in the booklet with the pink cover. Do NOT write your answers on the green insert. Answer Questions 1, 2, and 3. The Section II score weighting for each question is 20 percent.This 2017 AP® Chemistry Free-Response Questions AP Test Prep is suitable for 10th - 12th Grade. More than 83,000 scholars earned college credit, thus saving time and money by passing the AP Chemistry exam in 2017. Use the exact test questions covering concepts from activation energy to solubility to prepare for the upcoming assessment.Free-Response Questions. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info ... 2017 ap chemistry free response answers, The 2014 AP Chemistry free response had a similar question on the last problem. In looking at the scoring guidelines, it seems that they do want a full justification, stating that an increase in temperature increases the kinetic energy. And it seems like they like references to activation energy., completely fill in the corresponding circle on the answer sheet. Because this section Offers only four answer options for each question, do not mark the (E) answer circle for any question. Give only one answer to each question. If you change an answer, be sure that the previous mark is erased completely. Here is a sample question and answer., CHEMISTRY . Section II . 7 Questions . Time—1 hour and 45 minutes . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each. Questions 4–7 are short free-response questions that require about 9 minutes …, 2019 AP ® CHEMISTRY FREE-RESPONSE QUESTIONS . GO ON TO THE NEXT PAGE. -5-CHEMISTRY . Section II . Time—1 hour and 45 minutes . 7 Questions . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each., AP® BIOLOGY 2017 SCORING GUIDELINES Question 1 TABLE 1. EFFECT OF 0.1 mM CAFFEINE ON MEMORY IN BEES Memory (average probability of revisiting a nectar source ± 2SE-) Treatment X 10 Minutes 24 Hours Control 0.72 ± 0.09 0.41±0.07 Caffeine 0.83 ± 0.07 0.78 ± 0.08 , , AP Chemistry 2017 Questions And Answers - Online Math … 1 week ago onlinemathlearning.com. Web Share this page to Google Classroom. Questions And Worked Solutions For AP Chemistry 2017, Practice Exam. AP Chemistry 2017 Free Response Questions - Complete Paper … 278 Show detail Preview View more, mass percent based on the answer to part (g). (i) If the oxidation of the Fe(s) in the original sample was incomplete so that some of the 7 .531 g of product was . FeO(s) instead of Fe. 2. 0. 3 (s), would the calculated mass percent of . Fe(s) in the original sample be higher, lower, or the same as the actual mass percent of . Fe(s)? Justify ..., AP Calculus AB Scoring Guidelines 2017 Author: The College Board Subject: AP Calculus AB Scoring Guidelines 2017 Keywords: AP Calculus AB Scoring Guidelines 2017; exam information; scoring information; teacher resources Created Date: 7/11/2017 7:13:55 AM, Circle your answer below. Justify your answer and include a calculation of E ° for the overall reaction. H O (aq) Na S O (aq) Na S O (aq) [Na S O (aq) should be circled.] The reaction between S O (aq) and I (s) will be thermodynamically favorable because or the reaction is positive ( = 0.54 0.08 = +0.46 V), from which it, 2017 AP ® COMPUTER SCIENCE A FREE-RESPONSE QUESTIONS COMPUTER SCIENCE A SECTION II Time—1 hour and 30 minutes . Number of questions—4. Percent of total score—50, 7 Questions Time—1 hour and 45 minutes . YOU MAY USE YOUR CALCULATOR FOR THIS SECTION. Directions: Questions 1–3 are long free-response questions that …, 2017: Free-Response Questions. Questions. Scoring. Samples and Commentary. Free-Response Questions. Scoring Guidelines. Chief Reader Report. Scoring Statistics. Scoring Distributions. Sample Responses Q1. Sample Responses Q2. Sample Responses Q3. Sample Responses Q4. Sample Responses Q5. Sample Responses Q6. Sample Responses Q7, AP® Chemistry 2005 Scoring Guidelines Form B The College Board: Connecting Students to College Success ... answer. (c) Why is the volume of O2(g) collected different from the volume of H2(g) collected, as shown in the diagram? When water decomposes according to the balanced chemical, 2017 AP® Chemistry Free-Response Questions • Number of Students Scored 158,931 • Number of Readers 347 • Score Distribution Exam Score N %At • Global Mean 2.67 The following comments on the 2017 free-response questions for AP® Chemistry were written by the Chief Reader, Roger Kugel, University of Cincinnati., AP® CHEMISTRY 2017 SCORING GUIDELINES Question 2 (continued) Since ΔG °is negative, K > I ( ΔG °= ‒RT lnK), resulting in a higher concentration of product than reactant at equilibrium. 1 point is earned for the correct choice with a valid justification. (Calculation of ΔG °is a sufficient justification.), This pdf document provides a sample response for question 7 of the 2017 AP Chemistry exam, which involves calculating the equilibrium constant and the concentrations of species in a reaction mixture. The document also explains the scoring guidelines and the points awarded for each part of the question. The pdf is useful for students who want to practice …, For the correct answer and a valid justification: ... AP® Chemistry 2021 Scoring Guidelines ... Scoring Guidelines; scoring information; free-response scoring ... , Michael 2017 AP CHEMISTRY FREE-RESPONSE QUESTIONS 2. Answer the following questions about the isomers fulminic acid and isocyanic acid. Two possible Lewis electron-dot diagrams for fulminic acid. HCNO, are shown below. H-C=N-õ: H-^=N=ỏ: (a) Explain why the diagram on the left is the better representation for the bonding in fulminic acid., Questions 1–3 are long free-response questions that require about 23 minutes each to answer and are worth 10 points each. Questions 4–7 are short free-response questions that require about 9 minutes each to answer, Section II: Free -Response Questions . Multiple-Choice Answer Key . Free-Response Scoring Guidelines . Scoring Worksheet . Question Descriptors and Performance Data. Note: This publication shows the page numbers that appeared in the 2015−16 AP Exam Instructions book and in the actual exam. This publication was not repaginated to begin with ... , The answer to the riddle, “What demands an answer but asks no question?” is a telephone or a doorbell. The riddle is making a pun on the word answer. Instead of a spoken reply, the word is used to mean an action in response to some event., The AP Chemistry Exam will test your understanding of the scientific concepts covered in the course units, as well as your ability to design and describe chemical experiments. Starting with the 2023 exam, a scientific or graphing calculator is recommended for use on both sections of the exam. You will be provided with a periodic table and a ..., AP Chemistry FRQ 2018 Draft Answers and Projected Points Kaleb Underwood 1. (a) The oxidation number of Cl is +1 1 point for the correct oxidation number (b) 0.500 𝑎2 2 3×0.10000 =0.0500 𝑎2 2 3 0.0500 𝑎2 2 3× 158.1 1 =7.91 𝑎2 2 3 , ucyi 1. 2 subscribers. Subscribe. 2.1K views 5 years ago. A band of imaginary AP chemistry students help a peer solve the AP Chemistry 2017 free response in his …, 2017 AP® Chemistry Free-Response Questions • Number of Students Scored 158,931 • Number of Readers 347 ... In order to answer this question, students were expected to draw on their knowledge and skills from a number of topic areas in the AP Chemistry curriculum. Some of the topics might have been taught initially in the first-year chemistry, The Chief Reader for the 2017 AP Chemistry exam provides a brief walkthrough of the highlights of their Chief Reader Report. In this presentation, Paul Bonvallet of the College of Wooster gives overviews of each free-response question—how students performed, teaching tips for areas where students struggled, and a deeper understanding of the ..., AP Chemistry2018 AP Chemistry ExamFree Response #6 and #7www.mrayton.com , Chemistry Practice Exam From the 2012 Administration This Practice Exam from the 2012 international administration is provided by the College Board for AP Exam preparation. Teachers are permitted to download the materials and make copies to use with their students in a classroom setting only. To maintain the security of this exam, teachers …, Justify your answer in terms of the information above. 2017 AP Chemistry Free-Response Questions 2017 The College Board. Visit the College Board on the Web: GO ON TO THE NEXT PAGE. -7- 2. Answer the following Questions about the isomers fulminic acid and isocyanic acid. Two possible Lewis electron-dot diagrams for fulminic acid, HCNO, are …, 2017 AP Chemistry Free Response Questions: Free response question #7 (titration/galvanic cell problem) solution video edited and recorded by SpotVids. Not en..., AP ® Chemistry Sample Student Responses ... Question 1: Long Answer . 10 points (a) For the correct expression: [H O ][HCOO ] 3: a [HCOOH] K ... Directions: Questions 1-3 are long free-response questions . that . require . about . 23 minutes each to answer . and . are worth 10 points each. Questions, AP® Chemistry 2005 Scoring Guidelines Form B The College Board: Connecting Students to College Success ... answer. (c) Why is the volume of O2(g) collected different from the volume of H2(g) collected, as shown in the diagram? When water decomposes according to the balanced chemical