Об этом курсе
4.8
Оценки: 200
Рецензии: 57
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Прибл. 30 часа на выполнение

Предполагаемая нагрузка: 6 hours/week...
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Английский

Субтитры: Английский, Испанский, Иврит...
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Прибл. 30 часа на выполнение

Предполагаемая нагрузка: 6 hours/week...
Доступные языки

Английский

Субтитры: Английский, Испанский, Иврит...

Программа курса: что вы изучите

Неделя
1
Часов на завершение
4 ч. на завершение

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 видео (всего 133 мин.), 2 материалов для самостоятельного изучения, 2 тестов
Video12 видео
Scientific Method9мин
Measurement and Significant Figures Part I16мин
Measurement and Significant Figures Part II13мин
Matter17мин
Energy Part I14мин
Energy Part II14мин
Intro Stoichiometry Part I - Chemical Formulas12мин
Intro Stoichiometry Part II - The Mole13мин
[DEMO] Dr. Ken Lyle Chemistry Demonstration6мин
[DEMO] Physical Change3мин
[DEMO] Chemical Change4мин
Reading2 материала для самостоятельного изучения
Math Concept Quiz Instructions10мин
Significant Figure Tips10мин
Quiz2 практического упражнения
Math Concept Quiz30мин
Week 1 Exercises30мин
Неделя
2
Часов на завершение
5 ч. на завершение

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 видео (всего 183 мин.), 2 тестов
Video9 видео
The Structure of the Periodic Table27мин
Ions and Isotopes23мин
Ionic Bonds17мин
Orbital Energy and Ionization Energy Part I22мин
Orbital Energy and Ionization Energy Part II14мин
Electronegativity and Atomic Radius23мин
Introduction to Thermochemistry: Heat Capacity19мин
[DEMO] Density6мин
Quiz2 практического упражнения
Week 2 Exercises24мин
Advanced Problem Set46мин
Неделя
3
Часов на завершение
2 ч. на завершение

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 видео (всего 99 мин.), 1 тест
Video7 видео
Oxidation States Part II - Examples13мин
Naming Ionic Compound Part I13мин
Naming Ionic Compound Part II12мин
Covalent Bond Formation19мин
Naming Molecular Compounds12мин
Formula Mass9мин
Quiz1 практическое упражнение
Week 3 Exercises22мин
Неделя
4
Часов на завершение
3 ч. на завершение

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 видео (всего 106 мин.), 2 тестов
Video7 видео
Chemical Composition: Mole Ratios18мин
Mass Percent9мин
Empirical Formula19мин
Introduction to Chemical Reaction11мин
Balancing Chemical Reaction Equations15мин
Chemical Reaction Calculations15мин
Quiz2 практического упражнения
Week 4 Exercises18мин
Advanced Problem Set40мин
4.8
Карьерные преимущества

83%

получил значимые преимущества в карьере благодаря этому курсу

Лучшие рецензии

автор: 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!

автор: 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!

Преподаватель

Avatar

Prof. Dorian A. Canelas

Assistant Professor of the Practice
Chemistry

О 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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