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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/intro-chemistry
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课程概述：化学入门：反应与比例 本课程是一门针对化学基础知识有限的学生的入门课程，重点强调化学反应、化学计量学、周期表、周期趋势、命名法以及化学问题解决的基本概念，旨在为未来的化学学习打下基础，这对许多科学、健康和政策专业的学生而言是必需的。 课程大纲： 1. **介绍**：课程在七周内进展，从最基本的物质与能量知识，逐步到解决与真实世界化学反应相关的计量学问题。每节课引入新概念，使学生能够在此基础上构建知识体系，对理解综合信息尤为重要。课程适合背景非常少的学生，但需要有较强的代数基础。 2. **物质与能量**：本周将深入探讨物质和能量，包括亚原子粒子、同位素、阴离子和阳离子。学习命名化合物、计算化学式质量，以及克与摩尔之间的转换和周期趋势等内容。 3. **化合物**：本周学习如何命名化合物、计算化学式质量，以及其他相关内容，包括周期趋势。 4. **化学组成与反应**：本周介绍化学组成、反应术语和反应计算，重点关注营养成分和污染物等实际问题。 5. **溶液与溶解规则**：本周讨论水溶液、溶解规则、沉淀物和电解质，并学习课程中的第一种化学反应方程：溶解反应。 6. **酸碱及氧化还原反应**：课程即将结束，本周将介绍酸碱反应和氧化还原反应的基本知识，并结合前几周的内容练习反应计算。 7. **期末考试**：恭喜你到达课程的最后一周！尽管过去六周不易，但你们的努力将得到回报，特别是完成荣誉课程的同学们，你们的成就值得表扬！ 这门课程旨在帮助学生建立化学的基础知识，为未来的学习和职业发展做好准备。
Name:Introduction
Description: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!
Name:Matter and Energy
Description:
If you are interested in significant figures in more detail, here are some good videos 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.
Name:Compounds
Description:
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!
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!
Name:Chemical Composition and Reactions
Description:
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.
Name:Solutions and Solubility Rules
Description:
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.
Name:Acid-base and Redox Reactions
Description:
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.
Name:Final Exam
Description:Congratulations on making through to the final week of the course! It was not an easy journey for the past six weeks with dozens of videos, exercises, problem sets, and forum discussions. Kudos to the many of you who completed the honors lessons on top of the other work. I am proud of all of you!
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.
