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..
Introdução à química: reações e relações
oferecido por
Universidade Duke
Programa - O que você aprenderá com este curso
Semana
1Introduction
<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 vídeos (total de (Total 133 mín.) min), 2 leituras, 2 testes
12 videos
Introduction7min
Scientific Method9min
Measurement and Significant Figures Part I16min
Measurement and Significant Figures Part II13min
Matter17min
Energy Part I14min
Energy Part II14min
Intro Stoichiometry Part I - Chemical Formulas12min
Intro Stoichiometry Part II - The Mole13min
[DEMO] Dr. Ken Lyle Chemistry Demonstration6min
[DEMO] Physical Change3min
[DEMO] Chemical Change4min
2 leituras
Math Concept Quiz Instructions10min
Significant Figure Tips10min
2 exercícios práticos
Math Concept Quiz30min
Week 1 Exercises30min
Semana
2Matter 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 vídeos (total de (Total 183 mín.) min), 2 testes
9 videos
Atoms and Elements28min
The Structure of the Periodic Table27min
Ions and Isotopes23min
Ionic Bonds17min
Orbital Energy and Ionization Energy Part I22min
Orbital Energy and Ionization Energy Part II14min
Electronegativity and Atomic Radius23min
Introduction to Thermochemistry: Heat Capacity19min
[DEMO] Density6min
2 exercícios práticos
Week 2 Exercises24min
Advanced Problem Set46min
Semana
3Compounds
<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 vídeos (total de (Total 99 mín.) min), 1 teste
7 videos
Oxidation States Part II - Examples13min
Naming Ionic Compound Part I13min
Naming Ionic Compound Part II12min
Covalent Bond Formation19min
Naming Molecular Compounds12min
Formula Mass9min
1 exercício prático
Week 3 Exercises22min
Semana
4Chemical 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 vídeos (total de (Total 106 mín.) min), 2 testes
7 videos
Chemical Composition14min
Chemical Composition: Mole Ratios18min
Mass Percent9min
Empirical Formula19min
Introduction to Chemical Reaction11min
Balancing Chemical Reaction Equations15min
Chemical Reaction Calculations15min
2 exercícios práticos
Week 4 Exercises18min
Advanced Problem Set40min
33%
comecei uma nova carreira após concluir estes cursos
12%
consegui um benefício significativo de carreira com este curso
Melhores avaliações
por DP•Feb 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!
por PF•Nov 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!
Instrutores
Prof. Dorian A. Canelas
Assistant Professor of the PracticeChemistry
Sobre Universidade Duke
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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