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初級

完成時間大約為26 小時

英語(English)

字幕:英語(English), 希伯來語, 西班牙語(Spanish)

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

根據您的日程表重置截止日期。

初級

完成時間大約為26 小時

英語(English)

字幕:英語(English), 希伯來語, 西班牙語(Spanish)

教學大綱 - 您將從這門課程中學到什麼

1
完成時間為 1 小時

Review Videos (I)

<p>Welcome! Over the eight weeks of the Introduction to Chemistry: Structures and Solutions course, we will begin discussions about the electronic structure of the atom, structures of molecules, phases of matter, and solutions. This week, we included some basic concept videos in Chemistry. These come from the partner course called Introduction to Chemistry: Reactions and Ratios. You can technically start with either course, but when these courses were originally designed, the Reactions and Ratios content came first, and you might find it helpful to complete that course before this course. If you are not familiar with the concepts of physical change v.s. chemical change, or significant figure and scientific notations, then please begin by reviewing video “Introduction”. I hope you enjoy this week's materials!</p>

...
8 個視頻 (總計 83 分鐘)
8 個視頻
1.3 Measurement and Significant Figures Part II 13分鐘
1.4 Energy Part I 14分鐘
1.5 Energy Part II 14分鐘
1.6 [DEMO] Physical Change 3分鐘
1.7 [DEMO] Chemical Change 4分鐘
完成時間為 2 小時

light

We will cover introduction to light, Bohr model of the hydrogen atom, atomic orbitals, electron configurations, valence versus core electrons. Don’t forget to use this week’s discussion forum for any questions and discussions.

...
7 個視頻 (總計 88 分鐘), 1 個測驗
7 個視頻
Light Waves19分鐘
Atom Emission Spectra8分鐘
Bohr Model Part I20分鐘
[Demo] Colored Flames5分鐘
Bohr Model Part II12分鐘
1 個練習
Week 1 Exercises16分鐘
2
完成時間為 2 小時

Quantum Number, Lewis Dot Structure

<p>Welcome to week 2! This week we will introduce quantum numbers, more information about periodicity, chemical bonding concepts including Lewis dot structures, resonance, bond order. Continue using the discussion forum for any questions, concerns, discussions, and suggestions. We value your feedback very much!</p> <p>I hope you already found out how we captured the course logo from Colored Flames. Wasn't that fun to watch? Kudos to those of you who browsed the course, watched videos, submitted exercises, and/or posted on the discussion forum! Keep the great work going please.</p>

...
7 個視頻 (總計 127 分鐘), 1 個測驗
7 個視頻
Core and Valence Electrons9分鐘
Introduction to Lewis Structures17分鐘
Lewis Dot Structure Construction23分鐘
Bond Order, Expanded Octet18分鐘
1 個練習
Week 2 Exercise22分鐘
3
完成時間為 3 小時

Formal Charge, VSEPR Theory, Hybridization

<p>Welcome to week 3! This week includes introduction to the octet rule and expanded octets, formal chargevalence shell electron pair repulsion (VSEPR) theory, sigma and pi bonds, hybridization of the main group elements, and introduction to molecular shapes.</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>

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6 個視頻 (總計 98 分鐘), 2 個測驗
6 個視頻
Valence Shell Electron Pair Repulsion Part II11分鐘
Sigma and Pi Bonds16分鐘
Hybridization23分鐘
2 個練習
Week 3 Exercise22分鐘
First Advanced Problem Set1 小時 2 分
4
完成時間為 2 小時

Phases of Matter, Gas Laws

<p>Welcome to week 4! This week we will discuss phases of matter, the importance of thermal energy, ideal gas law calculations, kinetic molecular theory of gases. Hope you will enjoy!</p> <p>We are at the midway point in the course! As a group you have been watching videos, completing quizzes, and/or actively discussing chemistry on the forums, so please accept our compliments on your hard work so far in the course. </p>

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6 個視頻 (總計 85 分鐘), 1 個測驗
6 個視頻
Gas Law: Partial Pressure20分鐘
The Importance of Thermal Energy6分鐘
Phases of Matter, Liquids15分鐘
1 個練習
Week 4 Exercise12分鐘
4.7
17 個審閱Chevron Right

來自化学基础:结构和溶解的熱門評論

創建者 TASep 17th 2017

Skillful Quiz, the best understanding of chemistry. Although a little difficult to pass, U will be proficient in Introductory Chemistry.

創建者 LSep 16th 2017

Excellent presentation of the topics, easy to understand the instructor.

講師

Avatar

Prof. Dorian A. Canelas

Assistant Professor of the Practice
Chemistry

關於 杜克大学

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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