課程信息

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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.

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立即開始，按照自己的計劃學習。

初級

完成時間大約為18 小時

英語（English）

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體驗 Coursera 企業版

可靈活調整截止日期

根據您的日程表重置截止日期。

可分享的證書

完成後獲得證書

100% 在線

立即開始，按照自己的計劃學習。

初級

完成時間大約為18 小時

英語（English）

對員工進行熱門技能培訓能否為您的公司帶來益處？

體驗 Coursera 企業版

授課教師

授課教師評分

4.82/5 （300 個評分）

Prof. Dorian A. Canelas

Associate Professor of the Practice

Chemistry

127,833 個學生

2 門課程

授課大綱 - 您將從這門課程中學到什麼

內容評分94%（7,533 個評分）

週

1

週 1

完成時間為 4 小時

Introduction

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.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!

完成時間為 4 小時

12 個視頻（總計 133 分鐘）, 2 個閱讀材料, 2 個測驗

12 個視頻

Introduction7分鐘

Scientific Method9分鐘

Measurement and Significant Figures Part I16分鐘

Measurement and Significant Figures Part II13分鐘

Matter17分鐘

Energy Part I14分鐘

Energy Part II14分鐘

Intro Stoichiometry Part I - Chemical Formulas12分鐘

Intro Stoichiometry Part II - The Mole13分鐘

[DEMO] Dr. Ken Lyle Chemistry Demonstration6分鐘

[DEMO] Physical Change3分鐘

[DEMO] Chemical Change4分鐘

2 個閱讀材料

Math Concept Quiz Instructions10分鐘

Significant Figure Tips10分鐘

2 個練習

Math Concept Quiz30分鐘

Week 1 Exercises30分鐘

週

2

週 2

完成時間為 4 小時

Matter and Energy

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.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.

完成時間為 4 小時

9 個視頻（總計 183 分鐘）

9 個視頻

Atoms and Elements28分鐘

The Structure of the Periodic Table27分鐘

Ions and Isotopes23分鐘

Ionic Bonds17分鐘

Orbital Energy and Ionization Energy Part I22分鐘

Orbital Energy and Ionization Energy Part II14分鐘

Electronegativity and Atomic Radius23分鐘

Introduction to Thermochemistry: Heat Capacity19分鐘

[DEMO] Density6分鐘

2 個練習

Week 2 Exercises30分鐘

Advanced Problem Set30分鐘

週

3

週 3

完成時間為 2 小時

Compounds

完成時間為 2 小時

7 個視頻（總計 99 分鐘）

週

4

週 4

完成時間為 3 小時

Chemical Composition and Reactions

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.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.

完成時間為 3 小時

7 個視頻（總計 106 分鐘）

週

5

週 5

完成時間為 2 小時

Solutions and Solubility Rules

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.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.

完成時間為 2 小時

9 個視頻（總計 116 分鐘）

9 個視頻

Introduction to Solutions Part I17分鐘

Introduction to Solutions Part II11分鐘

[Demo] Electrolytes10分鐘

Dissolution and the Solubility Product Constant Part I15分鐘

Dissolution and the Solubility Product Constant Part II11分鐘

Solubility Rules13分鐘

Precipitation & Net Ionic Equations Part I16分鐘

Precipitation & Net Ionic Equations Part II13分鐘

[Interview] Dr. Franz Interview (05:55)5分鐘

1 個練習

Week 5 Exercises30分鐘

週

6

週 6

完成時間為 2 小時

Acid-base and Redox Reactions

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!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.

完成時間為 2 小時

6 個視頻（總計 79 分鐘）

週

7

週 7

完成時間為 1 小時

Final Exam

完成時間為 1 小時

審閱

4.7

285 條評論

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來自化学基础：反应和比率的熱門評論

由 HL 提供2016年10月5日

Strongly recommend this to people who lack backgrounds in chemistry or those who want to revisit knowledge they've not come across for a long time. I learnt a lot! :)

由 SE 提供2021年8月13日

I did not like chemistry because I had failed my previous chemistry 114 class in college. Taking this course have help me to understand the basics of chemistry. I'm grateful.

Thank You.

由 AP 提供2020年5月7日

great course, it gives me more knowledge in chemistry and also can maintain my previous knowledge in chemistry. I truly like the explanation in atomic interaction part.

由 SP 提供2021年11月26日

I find it very clearly presented and well organized. I really enjoyed it. Thank you! I liked it so much that I decided to translate it in my mother language so I can refresh the notions learned.

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Will I receive a transcript from Duke University for completing this course?
No. Completion of a Coursera course does not earn you academic credit from Duke; therefore, Duke is not able to provide you with a university transcript. However, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

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化学基础：反应和比率

化学基础：反应和比率

課程信息