課程信息
4.8
202 個評分
57 個審閱
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
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初級

初級

完成時間(小時)

完成時間大約為30 小時

建議:6 hours/week...
可選語言

英語(English)

字幕:英語(English), 西班牙語(Spanish), 希伯來語...
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
初級

初級

完成時間(小時)

完成時間大約為30 小時

建議:6 hours/week...
可選語言

英語(English)

字幕:英語(English), 西班牙語(Spanish), 希伯來語...

教學大綱 - 您將從這門課程中學到什麼

1
完成時間(小時)
完成時間為 4 小時

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> ...
Reading
12 個視頻(共 133 分鐘), 2 個閱讀材料, 2 個測驗
Video12 個視頻
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
Reading2 個閱讀材料
Math Concept Quiz Instructions10分鐘
Significant Figure Tips10分鐘
Quiz2 個練習
Math Concept Quiz30分鐘
Week 1 Exercises30分鐘
2
完成時間(小時)
完成時間為 5 小時

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>...
Reading
9 個視頻(共 183 分鐘), 2 個測驗
Video9 個視頻
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
Quiz2 個練習
Week 2 Exercises24分鐘
Advanced Problem Set46分鐘
3
完成時間(小時)
完成時間為 2 小時

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>...
Reading
7 個視頻(共 99 分鐘), 1 個測驗
Video7 個視頻
Oxidation States Part II - Examples13分鐘
Naming Ionic Compound Part I13分鐘
Naming Ionic Compound Part II12分鐘
Covalent Bond Formation19分鐘
Naming Molecular Compounds12分鐘
Formula Mass9分鐘
Quiz1 個練習
Week 3 Exercises22分鐘
4
完成時間(小時)
完成時間為 3 小時

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>...
Reading
7 個視頻(共 106 分鐘), 2 個測驗
Video7 個視頻
Chemical Composition: Mole Ratios18分鐘
Mass Percent9分鐘
Empirical Formula19分鐘
Introduction to Chemical Reaction11分鐘
Balancing Chemical Reaction Equations15分鐘
Chemical Reaction Calculations15分鐘
Quiz2 個練習
Week 4 Exercises18分鐘
Advanced Problem Set40分鐘
4.8
57 個審閱Chevron Right
工作福利

83%

通過此課程獲得實實在在的工作福利

熱門審閱

創建者 DPFeb 6th 2018

Great Beginner Course. There are some parts where there will be frustration, but the forums are helpful. Any type of class involving math and science involves practice and work. Professor is great!

創建者 PFNov 24th 2016

A very good course to review basic college chemistry, or to prepare for for taking a college course if High School chemistry was taken too long ago. Highly recommended!

講師

Avatar

Prof. Dorian A. Canelas

Assistant Professor of the Practice
Chemistry

關於 Duke University

Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world....

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