Introduction to Chemistry: Reactions and Ratios

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About this course: This is an introductory course for students with limited background in chemistry; basic concepts involved in chemical reactions, stoichiometry, the periodic table, periodic trends, nomenclature, and chemical problem solving will be emphasized with the goal of preparing students for further study in chemistry as needed for many science, health, and policy professions..

Created by:  Duke University
  • Taught by:  Prof. Dorian A. Canelas, Assistant Professor of the Practice

    Chemistry
Level Beginner Language English, Subtitles: Spanish How To Pass Pass all graded assignments to complete the course. User Ratings 4.7 stars Average User Ra…

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When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan

  • Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
  • Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.

About this course: This is an introductory course for students with limited background in chemistry; basic concepts involved in chemical reactions, stoichiometry, the periodic table, periodic trends, nomenclature, and chemical problem solving will be emphasized with the goal of preparing students for further study in chemistry as needed for many science, health, and policy professions..

Created by:  Duke University
  • Taught by:  Prof. Dorian A. Canelas, Assistant Professor of the Practice

    Chemistry
Level Beginner Language English, Subtitles: Spanish How To Pass Pass all graded assignments to complete the course. User Ratings 4.7 stars Average User Rating 4.7See what learners said Coursework

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Syllabus


WEEK 1


Introduction



<p>Over the seven weeks of Introduction to Chemistry: Reactions and Ratios, you will be able to progress from a most basic knowledge of matter and energy to solving interesting real world chemical reaction stoichiometry problems. Each lesson in the course introduces some new concepts that allow you to build upon the material from previous lessons, so completing the coursework in the order that it is delivered will be most beneficial for developing a thorough understanding of synthesized information. This course is intended for students with very little background in the subject, but a strong foundation in algebra is needed to solve some of the problems. </p><p>In the first unit, the course will first introduce the basic concepts of scientific methods and measurement. Then we will talk about matter, energy, and stoichiometry. Last, we prepared several lab demonstrations by Dr. Ken Lyle. I hope that you are as excited as I am to this amazing world of chemistry! Good luck!</p><p>Prof. Canelas</p>


12 videos, 1 reading expand


  1. Video: Introduction
  2. Video: Scientific Method
  3. Video: Measurement and Significant Figures Part I
  4. Video: Measurement and Significant Figures Part II
  5. Video: Matter
  6. Video: Energy Part I
  7. Video: Energy Part II
  8. Video: Intro Stoichiometry Part I - Chemical Formulas
  9. Video: Intro Stoichiometry Part II - The Mole
  10. Video: [DEMO] Dr. Ken Lyle Chemistry Demonstration
  11. Video: [DEMO] Physical Change
  12. Video: [DEMO] Chemical Change
  13. Reading: Significant Figure Tips

Graded: Week 1 Exercises

WEEK 2


Matter and Energy



<p>If you are interested in significant figures in more detail, here are some <a href="https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/sig-figs-pre-alg/v/significant-figures" target="_blank">good videos</a> to follow on Khan Academy.</p><p>This week we will continue our explorations of matter and energy. We will discuss the sub-atomic particles that govern chemical reactions, isotopes, anions, and cations. We will learn how to name compounds, calculate formula masses, convert between grams and moles, examine periodic trends, and more! An advanced problems set is posted now; that is a longer assignment and is optional unless you would like to be eligible for the Honor’s Track. You can still earn a regular verified certificate without completing the advanced problem sets, so please be sure to keep working on the normal weekly exercises.</p>


9 videos expand


  1. Video: Atoms and Elements
  2. Video: The Structure of the Periodic Table
  3. Video: Ions and Isotopes
  4. Video: Ionic Bonds
  5. Video: Orbital Energy and Ionization Energy Part I
  6. Video: Orbital Energy and Ionization Energy Part II
  7. Video: Electronegativity and Atomic Radius
  8. Video: Introduction to Thermochemistry: Heat Capacity
  9. Video: [DEMO] Density

Graded: Week 2 Exercises
Graded: Advanced Problem Set

WEEK 3


Compounds



<p>In this week's videos and exercises (aka quizzes), we will learn how to name compounds, calculate formula masses, convert between grams and moles, examine periodic trends, and more!</p><p>I hope you enjoyed the last two weeks of learning chemistry. Great work on watching videos, posting on the discussion forum and submitting your exercises!</p>


7 videos expand


  1. Video: Oxidation States Part I - Rules
  2. Video: Oxidation States Part II - Examples
  3. Video: Naming Ionic Compound Part I
  4. Video: Naming Ionic Compound Part II
  5. Video: Covalent Bond Formation
  6. Video: Naming Molecular Compounds
  7. Video: Formula Mass

Graded: Week 3 Exercises

WEEK 4


Chemical Composition and Reactions



<p>Week 4 for Introduction to Chemistry: Reactions and Ratios is about to begin! This week will be filled with introductions to chemical compositions, chemical reaction terminology, and reaction calculations.</p><p>If any of the following questions interest you, then watching this week's videos and doing some practice problems are probably a good way to get started! How much sodium is in my diet? What amount of pollutants are in drinking water? How much iron is in iron ore for steel production? These of the types of problems you will be able to address this week.</p>


7 videos expand


  1. Video: Chemical Composition
  2. Video: Chemical Composition: Mole Ratios
  3. Video: Mass Percent
  4. Video: Empirical Formula
  5. Video: Introduction to Chemical Reaction
  6. Video: Balancing Chemical Reaction Equations
  7. Video: Chemical Reaction Calculations

Graded: Week 4 Exercises
Graded: Advanced Problem Set

WEEK 5


Solutions and Solubility Rules



<p>In the past five weeks of the course, we have learned concepts, rules, and skills, including but not limited to: the definitions of atoms, elements, molecules, and compounds; energy changes; Coulomb’s Law, molecular stoichiometry; atomic structures; periodic trends; the mole; compounds; atomic and molecular masses; molecular stoichiometry; balancing chemical equations.</p><p>In this coming week, we will be discussing aqueous solutions, solubility rules, precipitations and electrolytes! We are also going to learn the first type of chemical reaction equation in this course: Dissolutions.</p>


9 videos expand


  1. Video: Introduction to Solutions Part I
  2. Video: Introduction to Solutions Part II
  3. Video: [Demo] Electrolytes
  4. Video: Dissolution and the Solubility Product Constant Part I
  5. Video: Dissolution and the Solubility Product Constant Part II
  6. Video: Solubility Rules
  7. Video: Precipitation & Net Ionic Equations Part I
  8. Video: Precipitation & Net Ionic Equations Part II
  9. Video: [Interview] Dr. Franz Interview (05:55)

Graded: Week 5 Exercises

WEEK 6


Acid-base and Redox Reactions



<p>We are almost at the end of our course! I hope this has been a rewarding experience for you because I know that the course is not an easy one and it is relatively long. So kudos to everyone who has made it this far!</p><p>Week 6 for Introduction to Chemistry: Reactions and Ratios will include very basic introductions to acid-base and redox reactions. We will also practice combining what we know from previous weeks to complete reaction calculations.</p>


6 videos expand


  1. Video: Introduction to Acid-Base Reactions
  2. Video: Acid-Base Definitions and Reactions Part I
  3. Video: Acid-Base Definitions and Reactions Part II
  4. Video: Introduction to Redox Reactions Part I
  5. Video: Introduction to Redox Reactions Part II
  6. Video: Reaction Stoichiometry

Graded: Week 6 Exercises
Graded: Advanced Problem Set

WEEK 7


Final Exam



Congratulations on making through to the final week of the course! It was not an easy journey for the past six weeks with dozens of videos, exercises, problem sets, and forum discussions. Kudos to the many of you who completed the honors lessons on top of the other work. I am proud of all of you!




    Graded: Final Exam Part A
    Graded: Final Exam Part B

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