Learner Reviews & Feedback for Introduction to Chemistry: Reactions and Ratios by Duke University
About the Course
Top reviews
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.
IC
Jul 10, 2019
Excellent course. Although, it was very challenging to me to complete it and I had to repeat some of the videos, I am very happy that I decided to take it. It helped me to repeat my knowledge.
251 - 275 of 350 Reviews for Introduction to Chemistry: Reactions and Ratios
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
By Kritee M C
•Jan 16, 2026
its has amazing course
By Rasha D
•Mar 17, 2018
thank you very much :)
By Todd L
•Oct 30, 2025
Great course, thanks
By Абжалов Р Р
•Dec 3, 2016
Very professional!!!
By Simona E B
•Aug 23, 2021
Excellent approach!
By Jakhongir R
•Jun 26, 2024
Challenging for me
By William L
•Sep 2, 2022
Very Informative!
By Tyus W
•Jul 20, 2020
This was GREAT!!!
By Muhammad Z H
•Mar 15, 2023
Excellent course
By Dr M R K
•May 14, 2020
great experience
By Christhian P S
•Nov 4, 2018
Thanks a lot!!!
By Matthew S
•Aug 3, 2021
amazing course
By Camila G
•Sep 21, 2020
Ótimo curso!!
By Nguyễn Q A
•Apr 22, 2020
pretty useful