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Learner Reviews & Feedback for Introduction to Chemistry: Reactions and Ratios by Duke University

4.7
stars
1,347 ratings

About the Course

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....

Top reviews

SP

Nov 26, 2021

I find it very clearly presented and well organized. I really enjoyed it. Thank you! I liked it so much that I decided to translate it in my mother language so I can refresh the notions learned.

NM

Sep 13, 2025

Excellent course!!! I enjoyed the historical background the lecturer used including the brief synopsis of the Chinese emperor consuming mercury pills to gain immortality.

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226 - 250 of 336 Reviews for Introduction to Chemistry: Reactions and Ratios

By Sherry H

Mar 24, 2019

Very informative and great teacher!

By Alfonso O

Apr 20, 2017

Great class! Absolutely enjoyable!!

By Marionel E

Sep 23, 2020

A good course, easy to understand.

By Yoe

Apr 18, 2017

nice chemical course for beginners

By Bryan S

Jul 17, 2021

Alot of work but this was great!

By Fernando D G

May 5, 2020

Great Teacher, Explains excellent

By SeonMi J

May 21, 2020

I enjoyed this course very much.

By zoha a

Jul 9, 2021

This course was greatly helpful

By Luz A A V

Feb 6, 2021

Muy buen curso. Bien explicado.

By Farsana. O P

Jun 14, 2020

Nice presentation. Very helpful

By Rodrigo N

Jun 27, 2025

Great professor, learned a lot

By HanMin Z

Oct 24, 2021

A basic course but beneficial.

By Eduardo A C

Dec 28, 2017

AMAZING! I HAVE LEARNED A LOT!

By Muhammad N A

Apr 6, 2025

this course is really awesome

By A D

May 28, 2020

really cleared up the basics!

By Haris Č

May 6, 2025

Amazing introductory course!

By Nyein C

Oct 7, 2021

good course and thank sayars

By Johanna H

Jan 28, 2017

I only wish there was more.

By Bassel A H

Jan 9, 2021

Great course and teacher !

By Francisco J

Jan 22, 2019

muy bueno y bien explicado

By Sarah J

Jan 2, 2017

Very clear and accessible!

By yumna n

Jun 2, 2020

Excellent demonstration👍

By Sudhakar S K

Dec 31, 2019

good course for beginners

By Milan D

Jun 1, 2020

Very interesting course.

By Dr. G B D

Dec 26, 2022

Very informative Course