Stoichiometry Review Pdf

0 moles of potassium chlorate react? 2 KClO 3 2 KCl + 3 O 2 2. pdf FREE PDF DOWNLOAD NOW!!! Stoichiometry Review Use a periodic table, but NO calculator! Round molar masses to the "ones" place. Fill in all the gaps, then press "Check" to check your answers. Student Login. PDF | There is a call for biological science to move away from the reductionist focus of the past, but there are large-scale integrative efforts already underway; biological stoichiometry provides. White Board Races 14 11. pdf FREE PDF DOWNLOAD. pdf: Download File. Calculate the atomic mass (g/mol) of the metal and give the chemical symbol. Simple Gas Laws Review Solutions. AP Stoichiometry Review Ch3 Sec 8-11 1. Know where E o,r o. 4 Gas Stoichiometry Investigation 10. Flexible - Read on multiple operating systems and devices. Stoichiometry Worksheet and Key 1. products in reactions. This powerpoint is used in my CHEM 2800 class to teach elementary education majors stoichiometry in relation to the concept of the mole and metric conversions, which we have done previously in class. 6_limiting_reactant_and_percent_yield_ws. KBr(aq) really means K+(aq) + Br−(aq). Typical restoration types, including orchardland, grassland. Stoichiometry Practice Test 8. You can skip questions if you would like and come back to them. The combustion of a sample of butane, C 4H 10 (lighter fluid), produced 6. The main purpose of the book is to help you learn chemistry. 0 of N2 is reacted with an excess of H2? 3 3 3 2 3 2 2 2 40. What is the empirical formula of this compound? ! 22. No, the total pressure only gets to 1. It is the sum of the atomic masses of all of the elements contained in one formula unit of a compound; typically an ionic compound. 5% (Trick question! 100% is the. Stoichiometry is the mathematics behind the science of chemistry. what is the product? b. Unit 2 - Stoichiometry. The quantitative relationship here is measured by the Stoichiometry and also used to find out the amount of reactants that are yield in a given reaction. Just like the one for the regular practice tests, the complete practice tests’ results pages include thorough explanations and pertinent information on each question’s relevant concepts. Cr(OH) 3 + HClO 4 Cr(ClO 4) 3 + H 2 O. 1: Molar Volume of a Gas 10. 3 Solve solution stoichiometry problems. doc), PDF File (. Solution Stoichiometry (gravimetric analysis) Solution Chemistry Solution Review0001. stoichiometry review answers. 022 x 1023 atoms or molecules) 3. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. You can test your readiness to proceed by answering the Review Questions at the end of the chapter. 50mol KCl = mol KClO 3 = 0. Calculate the molarity of the NaCl solution. The trick is called backsolving. A gas cylinder filled with hydrogen gas holds 5 g of the gas. Determine the number of moles in 3. The term mole literally means a small mass. Stoichiometry Solving Problems A Chemistry Handbook >>>CLICK HERE<<< Study Guide: Chapter 4, Chemical Reactions and Solution Stoichiometry. The hydration process for ions has the partial negative end of the polar water molecules surrounding and stabilizing the cations in solution. Typical restoration types, including orchardland, grassland. Stoichiometry allows us to predict certain values, such as the percent yield of a product or the molar mass of a gas. This activity can be used as a review, introduction to stoichiometry, or as a differentiation for struggling learners. Stoichiometry Test Review 1. Given the quantity of one species in a chemical reaction in solution (in grams, moles or in terms of concentration), determine the quantity of another species. Calculate the number of moles contained in 550. About this book · Shop for Books on Google Play. Fill in all the gaps, then press "Check" to check your answers. FMAAEFDTUNYL # PDF » Stoichiometry and Process Calculations STOICHIOMETRY AND PROCESS CALCULATIONS PHI Learning, 2009. New Smyrna Beach High School Home of the Barracudas. Quizlet flashcards, activities and games help you improve your grades. 00 g glucose (C 6 H 12 O 6) burns? 2. Stoichiometry Worksheet #1 Answers 1. CH 3 NH 2 + O 2 CO 2 + H 2 O + N 2 Hint f. Unit 3: Stoichiometry Percent Composition, Empirical Formula, Hydrates, Balancing Chemical Reactions, 5 Types of Chemical Reactions, Stoichiometry, Limiting Reagent, Percent Yield.  Stoichiometry calculates the quantities of reactants and products in a chemical reaction. 9 **YOUR ANSWERS MUST INCLUDE THE PROPER NUMBER OF SIG FIGS AND COMPLETE UNITS IN ORDER TO RECEIVE CREDIT FOR THE PROBLEM. For example, if I start with 10 gallons of gasoline, how many liters of oxygen gas would be required to burn the 10 gallons of gasoline?. Chapter 14–Assignment D: Gas Stoichiometry at non-STP Conditions. L, mL = liter(s), milliliter(s). Show all work: 1) N 2 2) H 2 O 3) NaCl 4) Na 3 PO 4 5) Au 6) (NH 4) 2 CO 3 Percent Composition Determine the percent composition for each of the following. 0 g H 2, how many grams of H 2 O is produced? 8 Al + 3 Fe 3 O 4 4 Al 2 O 3 + 9 Fe 4. Get Started. Learn chapter 11 test chemistry stoichiometry with free interactive flashcards. How many moles of hydrogen, H2, are needed to react with 2. Download Chemistry 12, Stoichiometry Review Problems, R. Chemical reaction stoichiometry (CRS) is a branch of chemical stoichiome-try dealing with the constraints, in the form of chemical equations, placed on changes in the composition of a closed reacting system by the require-ment for conservation of the amount of each atomic species and of the total charge. Easy - Download and start reading immediately. Proudly powered by WeeblyWeebly. PDF Download Stoichiometry: 5e, by B I Bhatt Utilize the advanced innovation that human establishes now to locate the book Stoichiometry: 5e, By B I Bhatt quickly. • Application of the state symbols (s), (l), (g) and (aq) in equations. What is formula mass? Formula mass is the term primarily used for ionic substances. Solve the following stoichiometry grams-grams problems: 1) Using the following equation: 2 NaOH + H2SO4 ( 2 H2O + Na2SO4. Review Prepare for Unit Test Complete Study Guide. This video shows a limiting reactant problem being solved from SP-56. How many liters of propane gas (C 3 H 8) are needed to make 75 g of water? C 3 H 8 + 5O 2 3CO 2 + 4H 2 O 75 g H 2 O 1 mol H 2 O 1 mol C 3 H 8 22. Stoichiometric calculations. Update this answer! You can help us out by revising, improving and updating this answer. Know where E o,r o. 0g, therefore the two moles produced would have a mass of 34. © 2015 Pearson Education, Inc. Solving stoichiometry problems. AP Chemistry: Stoichiometry - Multiple Choice Answers 44. Problem List: 14, 17, Solving Problems: A Chemistry Handbook. Chemistry Unit Review Guide - Stoichiometry and Chemical Calculations (Senior Version) In order to prepare for the unit test, be sure that you have reviewed all of the following. MCAT-Review. These books are. xA yB + zC GIVEN: WANTED: Grams A x 1 mole A x y mole B x g B = Gram B g A x mole A 1 mole B. Solving stoichiometry problems. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 3) It is known that any given mechanism imposes linear de-pendencies on observed quantities of species. Introduction: Most chemical reactions require two or more reactants. pdf: File Size: 2310 kb: File Type: pdf. 0 g CO 2? 2 4. Choose your answers to the questions and click 'Next' to see the next set of questions. com © 2000 Cavalcade Publishing, All Rights Reserved 7) How many liters of a 0. Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide. Stoichiometry exam questions and answers 1. Circle the coefficient in this formula: 2 H 2 O Do coefficients affect formula weight?. Get Started. What is Stoichiometry used for? •Converting between different units •Forming ratios between products and reactants •Describing ratios between compounds in a reaction •Calculating quantities of products or reactants (in mass, moles, volume, etc. Conventional notation is used, i. Stoichiometry is simply the math behind chemistry. I once received an unexpected ovation in the middle of a 15-minute talk at a meeting of limnologists and oceanographers after I commented that oceanographers must be-. Therefore, we need to use mole-mass calculations in combination with mole ratios to solve several different types of mass-based stoichiometry problems. txt) or read online for free. hc_stoich_review_answers. pdf: File Size: 199 kb: File Type: pdf: Download File. atomic mass weighted average mass of an atom, found on the periodic table formula mass sum of the atomic masses of the atoms in a formula molecular mass sum of the atomic masses of the. Calculate the number of moles contained in 550. 00x10-3 mole of hydrogen forms. ____ ZnI2 → ____ Zn + ____ I2 How many grams of iodine will you produce if you begin your rxn with 56. 7g of zinc iodide?. Date: 04/12/10 27 Problems Relating Kc and Kp The ideal gas equation PV = nRT can be manipulated into a form that reflects a gas concentration term P = (n/V) RT where n/V = molarity. It will run out before all of the H 2 is used up and, therefore, limits the amount of products made. You are asked to prepare 0. 2 g Na2SO4 2. How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid? 355. 3) It is known that any given mechanism imposes linear de-pendencies on observed quantities of species. View Notes - Stoichiometry_Review_Sheet_-_PDF_format from CHEM 101 at Drexel University. © 2015 Pearson Education, Inc. Worksheet for Basic Stoichiometry. 983 moles of titanium 0. Note: Unless mentioned otherwise, the following images are excerpts from the Gold Standard MCAT General Chemistry ebook. Stoichiometry: (si units) – B. How many atoms are in 0. 022 x 10 23) of molecules. 0 moles of potassium chlorate, KClO3? Zn + 2HCl → ZnCl2 + H2. Define the following: Law of Conservation of Mass Molar Mass Reactant Reagent Product Mole Ratio Actual Yield Theoretical Yield Percent Yield Limiting Reactant Excess Reactant 2. Stoichiometry Test Review 1. ** BALANCE THE FOLLOWING EQUATIONS TO USE IN QUESTIONS 5 - 14:. 077 moles of magnesium phosphate. Worksheet for Basic Stoichiometry. Review Concepts: a. txt) or view presentation slides online. Get Started. 06 of methane, CH4, to produce carbon dioxide and water. pdf chapter 9 review stoichiometry answers section 9 1. Given enough information, one can use stoichiometry to calculate masses, moles, and percents within a chemical equation. apluscollegeready. 3a_dissolving__ionic_compounds_blanks. C 2H 2Cl 2 6. pdf View Download: Review Problems Warm-up (ran out of time in class Sept 2015) AP Practice Stoichiometry. N2 + 3H2 → 2NH3. An atom or a group of atoms with a positive charge. How to Solve AP Chemistry Stoichiometry Problems Stoichiometry is one of the most important topics on the AP Chemistry exam, so it's vital that you understand it and all of its applications. The central requirement of any stoichiometry problem is to convert moles of A to moles of B. How many moles of carbon dioxide can be formed by the decomposition of 5 moles of aluminum carbonate? Al. 7g of zinc iodide?. Stoichiometry 8. Given the following equation: 2 C 4H 10 + 13 O 2---> 8 CO 2 + 10 H 2O, show what the following molar ratios should be. In addition, students may use a scientific or graphing calculator on the free-response section. What is Stoichiometry used for? •Converting between different units •Forming ratios between products and reactants •Describing ratios between compounds in a reaction •Calculating quantities of products or reactants (in mass, moles, volume, etc. A mole simply represents Avogadro's number (6. Clark, Smith (CC-BY-4. In order to do stoichiometry, all you need to know is dimensional analysis and the mole box. 87g of Mg(OH) 2. Shape (nature) of bonding force/energy vs. for Stoichiometry Review · Gen Chem Lab Experiments · Contact. Write a balanced equation for the reaction of alumi num nitrate with sodium hydroxide. The document is very long, but the first two pages are hyperlinked; click on the topic for the questions you wish to study. 3 L of C02(g) be. For extra practice, try all the problems at the end of Appendix A and chapter 1 odd problems 15, 17, 19, 21, 23, 25, 27 and 29. Stoichiometry – 2. Sterner;James J. How many moles of hydrogen gas are produced if 0. 4/30-Notes on predicting products HW - Single Replacement / Solubility Rules worksheet (due Thursday). C-12, the Relative Standard 1. Stoichiometry is based on the law of conservation of mass, meaning that the mass of the reactants must be equal to the mass of the products. As a community, we Ironmen work together and support each other. Molar Mass- mass of one mole of a substance. pdf: File Size: 346 kb: File Type: pdf. Powered by Create your own unique website with customizable templates. Unit 6 Quiz--Molarity: Multiple Choice (Choose the best answer. A reaction occurred producing calcium chloride, water, and carbon dioxide. stoichiometry. pdf FREE PDF DOWNLOAD NOW!!! Source #2: stoichiometry review answers. Stoichiometry Review Name_____ Part 1: Mole ←→ Mass Conversions Convert the following number of moles of chemical into its corresponding mass in grams. Mole -The SI unit used to measure the amount of a substance that contains 6. 4-5) Video: Stoichiometry 3 4/8 CW:2 step conversions (pg. faecal pellets). Personal statement for resume teacher. Faster Than Lightning Lego Dc Comics Super Heroes Activity Book With Minifigure is the best ebook you must read. By combining a knowledge of balancing equations with the concept of the mole, it is possible to easily calculate the masses of all reactants required or products formed in any reaction. MOLES MOLES. molar mass A mole ratio from molar mass B the balanced equation. Stoichiometry Unit Review Multiple Choice Pick the best answer. KBr(aq) really means K+(aq) + Br−(aq). It is used as the bridge between chemistry on the atomic and macroscopic scale. 08 g P = 1 mol x 30. How many moles of carbon dioxide are produced when 4. 00 g/mol = 96. com) or phone 250-494-9065. A balanced equation has the same number of atoms of each element on both sides, because matter can neither be created nor destroyed. What is the mass in grams of 1. 0 mol of KClO 3 are totally consumed? 2. Chemistry 12, Stoichiometry Review Problems, R. 4 g Fe 1 mol Fe b. This packet is a cumulative review of many topics from the year that are fair game on the stoichiometry test. Given the quantity of one species in a chemical reaction in solution (in grams, moles or in terms of concentration), determine the quantity of another species. Feel free to email me if you have any questions at ccarman *at* kentschools *dot* net!. How many g. Worksheet #3 Limiting Reagents and Percentage Yield. Calculate(the. REVIEW: Limiting Reagents and Percent Yield. What is Stoichiometry used for? •Converting between different units •Forming ratios between products and reactants •Describing ratios between compounds in a reaction •Calculating quantities of products or reactants (in mass, moles, volume, etc. 2g PbO 1 mol PbO = 630. 0 moles of potassium chlorate react? 2 KClO3. SYNTHESIS AND EMERGING IDEAS The elemental stoichiometry of aquatic and terrestrial ecosystems and its relationships with organismic lifestyle and ecosystem structure and function: a review. The topical breakdown is as follows. Stoichiometry is the calculation of chemical quantities from balanced equations. Unit 6 Quiz--Molarity: Multiple Choice (Choose the best answer. Be sure to include the substance and its unit. Base your answer(s) to the following question(s) on the information below. Chemistry 11 Stoichiometry Review Worksheet Name:_____ 33. 5 Chemical Analysis. 0 g CO 2? 2 4. what is the product? b. Just like the one for the regular practice tests, the complete practice tests’ results pages include thorough explanations and pertinent information on each question’s relevant concepts. Show all your work in the space provided. Scribd is the world's largest social reading and publishing site. Powered by Create your own unique website with customizable templates. When acetylene (C 2 H 2 ) undergoes a combustion reaction in an excess of oxygen, 1300 kj of energy is. What is formula mass? Formula mass is the term primarily used for ionic substances. 12 Stoichiometry Answers pdf STOICHIOMETRY - Bonar Law Memorial - Construction Pearson Education, Inc of quantitative relationships between the amounts of Recall from Chapter 3. 022 x 10 23) of molecules. Find the amount that were theoretical based on regular ratios of stoichiometry (OR: divide by the smallest mole to get rid of as much decimals) Percentage Yield. 0 mol of N 2 are mixed with 12. Stoichiometry Glossary (Zumdahl & Zumdahl) Stoichiometry Practice Problems. Stoichiometry Review (Word Document) (Key) Review for Make Up Test (Word Document) Labs and Activities The Space Shuttle Decomposition Lab (Word Document). Staple all of your work and turn-in the assignment by the end of class. 1 Objectives Describe the types of relationships indicated by a balanced chemical equation. AP chemistry princeton review STOICHIOMETRY Wait just a minute here In order to access these resources, you will need to sign in or register for the website (takes literally 1 minute!) and contribute 10 documents to the CourseNotes library. 022x1023particles((atoms,(molecules)(( 2. moles of B × molar mass of B 1 mole of B =g of B For example: How many moles of ethane (C2H6) are in 400 g of ethane?. What is the mass in grams of 1. Practice Test Questions 1. It is often a challenge for students to understand that the mole provides a way of measuring matter. Convert the following number of moles of chemical into its corresponding mass in grams. 0 g of zinc with 100. Read online Chemistry 12, Stoichiometry Review Problems, R. orbital electrons c. ** BALANCE THE FOLLOWING EQUATIONS TO USE IN QUESTIONS 5 - 14:. Carefully stretch the balloon over the mouth of the test tube without mixing the contents. Determine the volume of hydrogen gas at STP that can be produced by the reaction of 130. View Notes - Stoichiometry_Review_Sheet_-_PDF_format from CHEM 101 at Drexel University. AP Chemistry: Stoichiometry - Multiple Choice Answers 44. 04g/mol) is added to 350 mL of 0. 5% (Trick question! 100% is the. PDF | There is a call for biological science to move away from the reductionist focus of the past, but there are large-scale integrative efforts already underway; biological stoichiometry provides. How many liters of propane gas (C 3 H 8) are needed to make 75 g of water? C 3 H 8 + 5O 2 3CO 2 + 4H 2 O 75 g H 2 O 1 mol H 2 O 1 mol C 3 H 8 22. We will discuss the answers to the unit 9 quiz to review for our unit 9 test. 02 x 10 moleculesI 1 mol Cl 1mol 71 g Cl Cl x 546 g Cl 10) 292 g Ag. 1-3) Video: Stoichiometry 2 4/5 CW: 1 step Stoichiometry Problems (pg. 1 LC5H1a 24. org are unblocked. CHEM1001 Worksheet 4: Moles and Stoichiometry Model 1: Balancing Chemical Equations Chemical equations specify how chemical reactions occur - the reactants used, the products formed and the amounts of each. Stoichiometry Unit Review Multiple Choice Pick the best answer. Stoichiometry is the calculation of chemical quantities from balanced equations. Example 2: Calculate the number of atoms in one-millionth of a gram of magnesium, Mg. The combustion of a sample of butane, C 4H 10 (lighter fluid), produced 6. Thermochemistry & Thermodynamics. Chemical reaction stoichiometry (CRS) is a branch of chemical stoichiome-try dealing with the constraints, in the form of chemical equations, placed on changes in the composition of a closed reacting system by the require-ment for conservation of the amount of each atomic species and of the total charge. This is where you can find a pdf of his slides/review. 0 g of H 2, how many mol of H 2 O is produced? 3. Cr(OH) 3 + HClO 4 Cr(ClO 4) 3 + H 2 O. This document can be a more effective way to review than completing J-Labs. Stoichiometry Multiple Choice AP Problems. 95g of potassium chlorate are decomposed to form potassium chloride, then 1. The word stoichiometry is coined from two Greek words: stoicheion (meaning 'element') and metron (meaning 'measure'). We will combine C i = f(X) with the appropriate rate law to obtain -r A = f(X). All these articles (Stoichiometry,Stoichiometric coefficient,Gas stoichiometry)are related to the same concept and would be better if they are accessible on a single page. The topical breakdown is as follows. NET have the following Chapter 9 Review Stoichiometry Modern Chemistry Answers book available for free. : the amount of a substance that contains the same number of entities as there are atoms in 12 g of carbon-12. PDF | There is a call for biological science to move away from the reductionist focus of the past, but there are large-scale integrative efforts already underway; biological stoichiometry provides. Easily read eBooks on smart phones, computers, or any eBook. It is very simple once you get the hang of it!. 022 x 10 23) of molecules. It will run out before all of the H 2 is used up and, therefore, limits the amount of products made. 4-1 Lab 4: Stoichiometry and Green Chemistry. 59 x 10 3 mol Na 236. 436 moles of ammonium chloride 2. The only products are 3. 1 Objectives Describe the types of relationships indicated by a balanced chemical equation. If A and/or B are solids or liquids, you use the mass and molar mass to get moles. pdf FREE PDF DOWNLOAD NOW!!! Source #2: chapter 12 stoichiometry section review answer key. 06 of methane, CH4, to produce carbon dioxide and water. Put a star by any problems you cannot complete on your own (with your reference sheets & periodic table of course!) This will give you a good idea of what material you need to study the most. KBr(aq) really means K+(aq) + Br−(aq). Given the following equation: 4Li + O 2 2Li 2 O a. Solvent - the dissolving medium (usually water) Solute - the substance that is dissolved. CHAPTER THREE STOICHIOMETRY For Review 1. It also shows an example of a Mass to Volume problem which can be applied to SP-49. 0gCsHt2 5 ma C02 1 1 LC02 volume 0t C02 (based on 02) 40. 0 moles of potassium chlorate, KClO3? Zn + 2HCl → ZnCl2 + H2. Determine the number of moles of Fe produced from 2. The document is very long, but the first two pages are hyperlinked; click on the topic for the questions you wish to study. Workbook If your instructor recommends the Active Learning Workbook, do Questions, Exercises, and Problems 14–15. 4 Gas Stoichiometry Investigation 10. Sulfur reacts with barium oxide to produce barium sulfide and oxygen gas. Learn chapter 11 test chemistry stoichiometry with free interactive flashcards. what are the reactants? c. Ions are specialised atoms or groups of atoms chemically combined together that have lost or gained electrons and posess an overall electrical charge. pdf: File Size: 189 kb: UNIT 6 REVIEW (with answers) File Size: A Little Stoichiometry Fun With Magnesium. Hydrogen and oxygen fill a small pipette. Given the quantity of one species in a chemical reaction in solution (in grams, moles or in terms of concentration), determine the quantity of another species. 450 moles of NaCl are dissolved in 95. chapter 9 review stoichiometry answers section 9 1. Introductory Chemistry Dr. 01 g/mol = 28. • Become familiar with the types of questions in the GRE Chemistry Test, paying special attention to the directions. pdf FREE PDF DOWNLOAD Stoichiometry Review Use a periodic table, but NO calculator! Round molar masses to the "ones" place. Molar Mass- mass of one mole of a substance. The following PDF takes all Chemistry SOL questions that have been released since 2003 and breaks them down by category. Obtain a balloon and add the specified amount of baking soda 3. Convert moles of the wanted substance to the desired units. 0 g of CO 2? 4 FeCr 2 O 7 + 8 K 2 CO 3 + O 2---> 2 Fe. CONVEX GEOMETRY AND STOICHIOMETRY 3 (Remark 5. Chapter 12 assessment stoichiometry answer key, read and download chapter 12 assessment stoichiometry answer key free ebooks in pdf format polar bears past bedtime 4 cool books witch school body swap 6th grade spy. Unit 6 Quiz--Molarity: Multiple Choice (Choose the best answer. State the mole ratios from a balanced chemical equation. Read and Download Ebook Gas Stoichiometry Answers With Work PDF at Public Ebook Library GAS STOICHIOMETRY ANSWERS WITH WORK PDF DOWNLOAD: GAS STOICHIOMETRY ANSWERS WITH WORK PDF Imagine that you get such certain awesome experience and knowledge by only reading a book. Stoichiometry is the practice of predicting the amount of product or reactant in a chemical equation based on a known amount of one of the other products or reactants. Like Dissolves Like and Molecule-Ion Attractions. Given the quantity of one species in a chemical reaction in solution (in grams, moles or in terms of concentration), determine the quantity of another species. Here, many. This powerpoint is used in my CHEM 2800 class to teach elementary education majors stoichiometry in relation to the concept of the mole and metric conversions, which we have done previously in class. The same cylinder holds 85 g of gas X under the same temperature and pressure. 0g, therefore the two moles produced would have a mass of 34. Dilutions Worksheet 1) If I add 25 mL of water to 125 mL of a 0. AP Chemistry Review and Test Prep Chemistry 11 Welcome to AP Chemistry. Henry’s Law 6. 5 Chemical Analysis. Ca(NO3)2 Na = 3 mol x 22. Enter the equation as shown below. The study of the quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry.
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