Ap chemistry unit 2 progress check mcq

Skill 1.A: Identify and describe what specific textual details reveal about a character, that character's perspective, and that character's motive (2/3). Skill Category 3: Explain the function of plot and structure. Skill 3.C: Explain the function of structure in a text (3/3).

Learn AP Euro Unit 2 Progress Check: MCQ with free interactive flashcards. Choose from 2,015 different sets of AP Euro Unit 2 Progress Check: MCQ flashcards on Quizlet. Scheduled maintenance: Saturday, October 21 from 9PM to 10PM PDT Study with Quizlet and memorize flashcards containing terms like 2.1 The map above reflects which of the following? A. The growth of inter regional trade in luxury goods B. The growth of commercial infrastructures C. the growth of communication networks D. Zheng He's voyage into Europe, 2.1 Which of the following factors contributed most to the sea …Created Date: 4/29/2016 3:17:36 PM Terms in this set (30) - The autoionization equilibrium for pure water favors the formation of reactants more at 55°C than at 25°C. - The autoionization equilibrium for pure water produces the same amount of OH−OH− ions at 55°C and 25°C. - At 55°C55°C, pH =−log (√Kw) for pure water. - At 55°C, pH=−log (Kw) for pure water. Page 4 of 20 AP Chemistry Scoring Guide Unit 8 Progress Check: MCQ A The will be higher than 4.2 because increasing the concentration of the weak acid decreases the percent ionization. B The will be higher than 4.2 because, for weak acid solutions, the is directly proportional to the initial concentration of the weak acid.Learn Test Q-Chat Created by Jason29253 Terms in this set (15) On the basis of electronegativity differences between atoms, which of the following scientific claims is the most accurate regarding the bonding in Mg (NO₃)₂ (s) ? A) There is polar covalent bonding between Mg atoms and N atoms.

Unit 7 Progress Check: FRQ. 5.0 (1 review) Identify the animal that has the greatest number of sequence differences from the reference animal. Click the card to flip 👆. Elephas-2 has 13 sequence differences from the reference animal.Most high schools offer a GPA boost to students who take AP. Be sure to check with your school for more information. See More Benefits . Important Dates . 2023. ... Progress Checks ... AP Chemistry. AP Environmental Science. AP Physics 1: Algebra-Based. AP Physics 2: Algebra-Based ...Chemistry. Physics. Medicine. Computer Science. Engineering. Earth Science. View all. Social Science. Psychology. ... Other. Hobbies. Sports. Computer Skills. View all. Log in. Sign up. 1 set 2 members. Forest Hills Central Woodlands · ADA. AP World Unit 2 Progress Check: MCQ. Anderson WHAP. You've been invited to join this class. To …Learn AP MCQ UNIT 7 AP LITERATURE with free interactive flashcards. Choose from 5,000 different sets of AP MCQ UNIT 7 AP LITERATURE flashcards on Quizlet. ... Ap chemistry Unit 7 Progress Check: MCQ. 33 terms. 4.5 (83) Belder1127. Preview. AP Psych Unit 7 MCQ. 100 terms. nabilah1231. Preview. AP CHEM UNIT 7 MCQ. 13 terms. …____ 18. Will a precipitate form when 0.1 M aqueous solutions of Ba(NO 3) 2 and H 2 CO 3 are mixed? If a precipitate does form, identify the precipitate and give the net ionic equation for the reaction.

AP Chemistry Scoring Guide Unit 1 Progress Check: MCQ 1. Which of the following numerical expressions gives the number of moles. Upload to Study. Expert Help. Study Resources. ... AP Chem Unit 1 Progress check scoring guide.pdf. Eastern Washington University. CHEM 140. Unit 1 FRQ Review a.docx. Solutions Available. BASIS …Learn Test Q-Chat Created by Jason29253 Terms in this set (15) On the basis of electronegativity differences between atoms, which of the following scientific claims is the most accurate regarding the bonding in Mg (NO₃)₂ (s) ? A) There is polar covalent bonding between Mg atoms and N atoms.Unit 7 Progress Check: FRQ. 5.0 (1 review) Identify the animal that has the greatest number of sequence differences from the reference animal. Click the card to flip 👆. Elephas-2 has 13 sequence differences from the reference animal.Terms in this set (30) - The autoionization equilibrium for pure water favors the formation of reactants more at 55°C than at 25°C. - The autoionization equilibrium for pure water produces the same amount of OH−OH− ions at 55°C and 25°C. - At 55°C55°C, pH =−log (√Kw) for pure water. - At 55°C, pH=−log (Kw) for pure water.Download free-response questions from past AP Chemistry exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.Learn Test Q-Chat Created by Jason29253 Terms in this set (15) On the basis of electronegativity differences between atoms, which of the following scientific claims is the most accurate regarding the bonding in Mg (NO₃)₂ (s) ? A) There is polar covalent bonding between Mg atoms and N atoms.

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AP Chemistry | Unit 3 Progress Check: MCQ. 33 terms. AyahF10. AP Chemistry Unit 4. 85 terms. maneskat000 Plus. Sets found in the same folder. AP Chemistry Unit 2. 75 terms. MsKreitzer. AP Chemistry Unit 6. 45 terms. MsKreitzer. AP Chemistry Unit 7. 50 terms. MsKreitzer. AP Chemistry Unit 1. 75 terms. MsKreitzer. Other sets by this creator.Study Guides by Unit. ⚛️ Unit 1 – Atomic Structure & Properties. 🤓 Unit 2 – Molecular & Ionic Bonding. 🌀 Unit 3 – Intermolecular Forces & Properties. 🧪 Unit 4 – Chemical Reactions. 👟 Unit 5 – Kinetics. 🔥 Unit 6 – Thermodynamics. ⚖️ Unit 7 – Equilibrium. 🍊 Unit 8 – Acids & Bases.CCDA Ch 7. 80 terms. ebrammer252. 1 / 7. Study with Quizlet and memorize flashcards containing terms like D) There is ionic bonding between Mg2+Mg2+ ions and NO3−NO3− ions., D) The electronegativity difference between the elements in the compound is relatively large., B) The bonding in the compound is nonpolar covalent. and more.A) The molar mass of Cu By dividing the mass of the sample by the molar mass of Cu, the number of moles of Cu in the sample can be calculated. A simple multiplication of that …

In this AP Daily: Live Review session for AP Chemistry, we will review key thermodynamics concepts and relationships including heat transfer, calorimetry, en...AP®︎/College Chemistry 9 units · 66 skills. Unit 1 Atomic structure and properties. Unit 2 Molecular and ionic compound structure and properties. Unit 3 Intermolecular forces and properties. Unit 4 Chemical reactions. The Demo version is limited to 10 Mb, so restricted to only one Lesson of Notes, 5 Cards and about 10 MC Questions. It automatically deletes from your device after a period of inactivity. There will be the option to download full version of the App offered. Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9.2 (g) a. H 2 SO 4 and CuSO 4 b. Cu and CuSO 4 c. Cu d. H 2 and H 2 SO 4 e. H 2 and Cu ____ 5. In the reaction given below, if 12 moles of aluminum oxide are consumed, how many moles of oxygen gas are produced? 2 Al 2 O 3 4 Al + 3 O 2 a. 3 b. 4 c. 6 d. 12 e. 18 ____ 6. In the reaction below, 8.0 g of H 2 react with 9.0 g of O 2. Which of the ...Assume that the pressure and temperature in the lab are 1.0atm and 25°C. A. The molar mass of Cu. By dividing the mass of the sample by the molar mass of Cu, the number of moles of Cu in the sample can be calculated. A simple multiplication of that number with Avogadro's number will provide the desired information. Ap chemistry Unit 7 Progress Check: MCQ Study online at whether the darkness of the color of the solution will change? 18. A chemist carried out the reaction at 573K, starting with 0.100mol of each reactant in a 1.00L container with variable volume. The reaction mixture quickly reached equilibrium, as indicated in the graph above.AP®︎/College Chemistry 9 units · 66 skills. Unit 1 Atomic structure and properties. Unit 2 Molecular and ionic compound structure and properties. Unit 3 Intermolecular forces and properties. Unit 4 Chemical reactions.a. time spent dreaming helps with problem solving and creativity. b. people sleep more after they have engaged in strenuous physical activity. c. dreams are the brain's way of making sense of random neural activity. d. dreams fulfill unconscious wishes.Study with Quizlet and memorize flashcards containing terms like Which of the following compounds contains both ionic and covalent bonds? A : SO3 B: C2H5OH C: MgF2 D: H2S E: NH4Cl, Of the following single bonds, which is the LEAST polar? A : N—H B: H—F C: O—F D: I—F E: O—H, The melting point of MgO is higher than that of NaF. Explanations for this observation include which of the ...

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🧪 Unit 5 study guides written by former AP Chem students to review Kinetics with detailed explanations and practice questions. Light. Fiveable+. 🌶️ Crams. Guides. ... The AP Chemistry exam has 60 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. That means it should take you around 15 minutes to ...Ap chemistry Unit 7 Progress Check: MCQ 33 terms Belder1127 Speed, Velocity, and Acceleration 18 terms hcps-wassermar Minerals (Bishop 8th) 33 terms hcps-wassermar Freshwater and Soil Test Review (Bishop, 8th) 83 terms hcps-wassermar Other sets by this creator Supreme Court Cases 17 terms Ben_Etheridge1704 AP GOV UNIT 3 KEY …How many grams of N2O5 gas are in a sample that has a volume of 2.00 Liters at 298 K and 100. kPa of pressure. 8.72. Study with Quizlet and memorize flashcards containing terms like The table below contains information about samples of four different gases at 273 K. The samples are in four identical rigid containers numbered 1 through 4.Correct. In the CH2Cl2 molecule, the H and Cl atoms are in a tetrahedral arrangement around the central C atom. The two electronegative chlorine atoms create a partial negative charge on their side of the carbon atom, leaving a partial positive charge on the opposite (hydrogen) side of the carbon atom. A sample of acetone is placed into a container. The container is sealed and attached to a pressure sensor, as shown in the diagram above. The container is allowed to sit on the lab table for a few minutes as the pressure in the container is monitored at regular intervals. At the end of 2.00 minutes, some acetone liquid remains in the container.AP Calculus BC Scoring Guide Unit 2 Progress Check: FRQ Part B Copyright © 2017. The College Board. These materials are part of a College Board program.a- the strong acid dissociates fully, leaving excess [H+] in solution. b- the conjugate acid of NH3 is the only ion present at equilibrium. c- the water whichis being created during the titration acts as an acid. d- the acid is diprotic, donatin gtwo protons for every unit dissociated.

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UNIT. 2 ~12–13. Class Periods. 7–9 % AP Exam Weighting. Personal Progress Check 1. Multiple-choice: ~20 questions. Free-response: 2 questions §Short-answer §Short-answer Personal Progress Check 2 Multiple-choice: ~15 questions Free-response: 1 question. Plan §Long-answer The Course at a Glance provides a useful visual organization of the ...The Demo version is limited to 10 Mb, so restricted to only one Lesson of Notes, 5 Cards and about 10 MC Questions. It automatically deletes from your device after a period of inactivity. There will be the option to download full version of the App offered. Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9.2 (g) a. H 2 SO 4 and CuSO 4 b. Cu and CuSO 4 c. Cu d. H 2 and H 2 SO 4 e. H 2 and Cu ____ 5. In the reaction given below, if 12 moles of aluminum oxide are consumed, how many moles of oxygen gas are produced? 2 Al 2 O 3 4 Al + 3 O 2 a. 3 b. 4 c. 6 d. 12 e. 18 ____ 6. In the reaction below, 8.0 g of H 2 react with 9.0 g of O 2. Which of the ...AP Chem: Unit 4 Progress Check: MCQ. A student combined two colorless aqueous solutions. One of the solutions contained Na2CO3 as the solute and the other contained HCl. The chemical reaction that took place is represented by the equation above. What experimental result would be evidence that a chemical reaction took place when the solutions ...View ChemistryTaylor.pdf from CHEM 1310 at Texas State University. AP Chemistry Scoring Guide Unit 5 Progress Check: MCQ A chemist is studying the reaction between the gaseous chemical species and ,AP Chemistry | Unit 3 Progress Check: MCQ. 4.7 (61 reviews) Flashcards; Learn; Test; Match; Q-Chat; ... Diagram 2, because it shows the formation of a hydrogen bond between an H atom bonded to an O atom with an O atom from another molecule. (Li+, Mg2+, Na+, and Ca2+ cations shown above) The diagram above represents four cations, all shown to ...Study with Quizlet and memorize flashcards containing terms like 2NO(g)+2H2(g)→N2(g)+2H2O(g) TrialInitial Concentrationof NO (M)Initial Concentrationof H2 (M)Initial Rate of Formationof N2 (M/s)10.100.101.2×10−320.100.202.4×10−3 The information in the data table above represents two different trials for an experiment to study the rate of the reaction between NO(g) and H2(g), as ...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 …Verified questions. The red line in the spectrum of atomic hydrogen is frequently referred to as the \mathrm {H} \alpha Hα line, and it has a wavelength of 656.3 \mathrm {~nm} 656.3 nm. Using Hubble's law and the Doppler equation for light from Problem 33, determine the wavelength of the \mathrm {H} \alpha Hα line in the spectrum emitted from ... Oct 30, 2011 · Week 2 Answer Sheet Unit 1 Progress Check on AP Classroom MCQ & FRQ (Due on 8/25) Determination of Unknown AgNO3 Gravimetric Analysis Practice Problems Gravimetric Analysis Practice Problems Solution Guide Week 3 (Aug 28-Sep 1) AP Chem - Week 3 - Chemical Bonding (Due on 8/31) Week 3 Answer Sheet Week 4 (Sep 4-8) Unit 2 Progress Check Mcq Ap Spanish Language And Culture. Here are some strategies you can use to improve your performance in multiple-choice questions in AP Spanish Language and Culture: Read the question carefully: Be sure to read each question thoroughly and pay close attention to any details provided in the question stem. ….

In this AP Daily: Live Review session for AP Chemistry, we will review key thermodynamics concepts and relationships including heat transfer, calorimetry, en... Assume that the pressure and temperature in the lab are 1.0atm and 25°C. A. The molar mass of Cu. By dividing the mass of the sample by the molar mass of Cu, the number of moles of Cu in the sample can be calculated. A simple multiplication of that number with Avogadro's number will provide the desired information.Study with Quizlet and memorize flashcards containing terms like Which of the following numerical expressions gives the number of moles in 5.0g of CaO?, In a lab a student is given a 21g sample of pure Cu metal. Which of the following pieces of information is most useful for determining the number of Cu atoms in the sample? Assume that the pressure and temperature in the lab are 1.0atm and 25 ...Score Distributions. Sample Responses Q1. Sample Responses Q2. Sample Responses Q3. Sample Responses Q4. Sample Responses Q5. Sample Responses Q6. Sample Responses Q7. Download free-response questions from past AP Chemistry exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.The chemical equation for the overall reaction is 2 H2O2→2 H2O+O2 , and the rate law for elementary step 1 is rate=k [H2O2] [I−] . Step 1: N2O5→NO2+NO3 (slow) Step 2: NO2+NO3→NO2+NO+O2 (fast) Step 3: NO+N2O5→3 NO2 (fast) A proposed reaction mechanism for the decomposition of N2O5 (g) is shown above. Country A : Stage 2, West Africa; Country B : Stage 4, western Europe. Neo-Malthusian theory can be used to explain which of the following situations? South Sudan experienced famine during the twenty-first century as a result of war and drought.AP Chemistry Second Semester Week 18 (Jan 3-5) AP Classroom Unit 6 Progress Check MCQ (Due on 1/7) AP Chem - Week 18 - Thermochemistry (Due on 1/7) Week 18 Answer Sheet Week 19 (Jan 8-12) AP Classroom Unit 6 Progress Check FRQ (Due on 1/11) AP Classroom Unit 9 Progress Check FRQ (Due on 1/11) AP Chem - Week 19 - Thermochemistry (Due on 1/11)Facts about the test: The AP Chemistry exam has 60 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. That means it should take you around 15 minutes to complete 10 questions. *The following questions were not written by College Board and although they cover information outlined in the AP Chemistry Course ... Ap chemistry unit 2 progress check mcq, Study with Quizlet and memorize flashcards containing terms like Which of the following numerical expressions gives the number of moles in 5.0g of CaO?, In a lab a student is given a 21g sample of pure Cu metal. Which of the following pieces of information is most useful for determining the number of Cu atoms in the sample? Assume that the pressure and temperature in the lab are 1.0atm and 25 ..., 1 periodic table of the elements 2 h he 1.0079 4.0026 3 4 5 6 7 8 9 10 li be b c n 0 f ne 6.941 9.012 10.811 12.011 14.007 16.00 19.00 20.179 11 12 13 14 15 16 17 18, Topic questions are formative questions to check student understanding as you teach. Assign topic questions to reveal student misunderstandings and target your lessons. Progress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and, The progressive movement in the United States, which took place from the 1890s to the 1920s, sought to protect social welfare, promote fairness, control big business, uphold moral values and promote greater efficiency of government and busi..., AP Chemistry | Unit 3 Progress Check: MCQ. 5.0 (1 review) Flashcards; Learn; Test; Match; Q-Chat; ... Diagram 2, because it shows the formation of a hydrogen bond between an H atom bonded to an O atom with an O atom from another molecule. (Li+, Mg2+, Na+, and Ca2+ cations shown above) The diagram above represents four cations, all shown …, A) The molar mass of Cu By dividing the mass of the sample by the molar mass of Cu, the number of moles of Cu in the sample can be calculated. A simple multiplication of that …, 5.0g/ (56g/mol) In a lab a student is given a 21g sample of pure Cu metal. Which of the following pieces of information is most useful for determining the number of Cu atoms in the sample? Assume that the pressure and temperature in the lab are 1.0atm and 25°C. The molar mass of Cu. Reason: by dividing mass of sample by molar mass of Cu, the ..., C. The block is moving to the right and slowing down. A wood block is placed on a rough surface. The surface starts horizontal, and one end is then raised so that the angle the surface makes with the horizontal gradually increases until, at an angle θ, the block begins to move down the surface, as shown in the figure., a. time spent dreaming helps with problem solving and creativity. b. people sleep more after they have engaged in strenuous physical activity. c. dreams are the brain's way of making sense of random neural activity. d. dreams fulfill unconscious wishes., View SG_Unit3ProgressCheckMCQ.pdf from CHEM 101 at Walnut High School. AP Chemistry Scoring Guide Unit 3 Progress Check: MCQ 1. Which particle diagram shown above best represents the strongest, l shown to the same scale. Which cation would be predicted by Coulomb's law to have the strongest ion-dipole attraction to water, and why? A solid compound of a group 1 (alkali) metal and a group 17 (halogen) element dissolves in water. The diagram above represents one type of solute particle present in the solution. Which of the following identifies the solute particle and best helps explain ..., View SG_Unit3ProgressCheckMCQ.pdf from CHEM 101 at Walnut High School. AP Chemistry Scoring Guide Unit 3 Progress Check: MCQ 1. Which particle diagram shown above best represents the strongest, Oct 21, 2023 · Study with Quizlet and memorize flashcards containing terms like (a) Identify the most likely mode of transport across the membrane for substance L. Explain how information provided helps determine the most likely mode of transport., (b) On the axes provided, construct an appropriately labeled line graph with correct scale and units to illustrate the data in Table 1., (c) Determine the ... , 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 each to answer and are worth 4 points each. For each question, show your work for each part in the space provided after that part., How many grams of N2O5 gas are in a sample that has a volume of 2.00 Liters at 298 K and 100. kPa of pressure. 8.72. Study with Quizlet and memorize flashcards containing terms like The table below contains information about samples of four different gases at 273 K. The samples are in four identical rigid containers numbered 1 through 4., Learn AP Euro Unit 2 Progress Check: MCQ with free interactive flashcards. Choose from 2,015 different sets of AP Euro Unit 2 Progress Check: MCQ flashcards on Quizlet. Scheduled maintenance: Saturday, October 21 from 9PM to 10PM PDT, This question is about the First Progress Platinum Prestige Mastercard® Secured Credit Card @CLoop • 03/15/22 This answer was first published on 03/15/22. For the most current information about a financial product, you should always check a..., Unit 2 Progress Check: MCQ AP Spanish Lit. 4.2 (23 reviews) Flashcards; Learn; Test; Match; ... Chemistry. Physics. Medicine. Computer Science. Engineering. Earth Science. View all. Social Science. ... Upgrade to remove ads. Only $35.99/year. Unit 2 Progress Check: MCQ AP Spanish Lit. 4.2 (23 reviews) Flashcards; Learn; Test; …, Progress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; free-response questions with scoring guides to help you evaluate student work. My Reports highlights progress for every student and class across AP units., A sample of acetone is placed into a container. The container is sealed and attached to a pressure sensor, as shown in the diagram above. The container is allowed to sit on the lab table for a few minutes as the pressure in the container is monitored at regular intervals. At the end of 2.00 minutes, some acetone liquid remains in the container., AP Chemistry Scoring Guide Unit 2 Progress Check: MCQ A The compound has properties similar to those of both elements. B The bonding in the compound is nonpolar covalent. C The boiling point of the compound is above D The compound contains strong ionic bonds. ., AP Calculus AB Scoring Guide Unit 2 Progress Check: FRQ Part B Copyright © 2017. The College Board. These materials are part of a College Board program., ____ 18. Will a precipitate form when 0.1 M aqueous solutions of Ba(NO 3) 2 and H 2 CO 3 are mixed? If a precipitate does form, identify the precipitate and give the net ionic equation for the reaction., Terms in this set (15) Which of the following Lewis diagrams represents a molecule that is polar? Correct. In the CH2Cl2 molecule, the H and Cl atoms are in a tetrahedral …, AP Calculus AB Scoring Guide Unit 2 Progress Check: MCQ Part A Copyright © 2017. The College Board. These materials are part of a College Board program., AP Chemistry | Unit 2 Progress Check: MCQ. 15 terms. Justej05. Other sets by this creator. AP Chemistry Unit 5 Progress Check. 27 terms. Justej05. Ap Chem Unit 5 MCQ Progress Check. 24 terms. Justej05. AP Econ Mr. Gaughan Section 8 Test. 127 terms. Justej05. Unit 4 :MCQ. 21 terms. Justej05. Verified questions., I usually can't find the answers to the progress check frqs, I just try my best, and if I get a good score, then I share my work for any fellow chem pals. But, if you dig deep enough on the web, the frq answers might be released. This was the case for the earlier progress check frqs prior to Unit 9. Hope this helps :) Educational_Exit_222 • 2 ..., Terms in this set (15) Which of the following Lewis diagrams represents a molecule that is polar? Correct. In the CH2Cl2 molecule, the H and Cl atoms are in a tetrahedral …, 1. Equilibrium lies far to the left. 2. You can calculate both concentrations given one of them (since you have Kw value) If a substance is a strong/weak acid/base, you can assume the substance in its conjugate acid/base pair is going to be _______ in strength, with an exception: _______. Opposite in strength!, Results for "AP Chemistry Unit 4 Progress Check" ... AP World Unit 2 Progress Check: MCQ. Forest Hills Central Woo · ADA, MI. 1 study set, 2 members. AP Chemistry ... , A chemist carried out the reaction at 573K, starting with 0.100mol of each reactant in a 1.00L container with variable volume. The reaction mixture quickly reached equilibrium, as …, AP Stat Unit 2 Progress Check: MCQ Part A. The following bar chart shows the number of different types of animals at two county fairs. Fair X had a total of 645 animals, and fair Y had a total of 590 animals. Which of the following statements is supported by the bar chart? The percentage of all animals at fair Y that are goats is …, a. Nitrogen – ionic nitrogen in the soil. b. Water – atmospheric water vapor. c. Carbon – dissolved CO2 in aquatic ecosystems. d. Phosphorous – sedimentary rocks. Subtraction of which of the following will convert gross primary productivity into net primary productivity? a. the energy contained in the standing crop.