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Back to Introduction to Chemistry: Reactions and Ratios

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

4.7
stars
1,381 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

SS

May 17, 2020

Enriched with knowledge .Thank you so much Prof Dorian. I have watched the again and again that you become so familiar . You are one of my favorite mentors . Your work is priceless.

JS

Jul 1, 2019

Excellent introduction. Engaging lectures, clear demonstrations and approachable problem sets. I love that everything for this course works from my phone. THANK YOU FOR OFFERING THIS COURSE!!!!!

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226 - 250 of 348 Reviews for Introduction to Chemistry: Reactions and Ratios

By Carlos A C A

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Aug 19, 2020

Excellent! thanks for the opportunity!

By Ong C W

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May 9, 2020

Good course for

High School Chemistry

By Deleted A

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Jun 21, 2020

Really good course! I learned a lot!

By Yousef A

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Jun 20, 2020

a very fruitful course of chemistry.

By Abay P A

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Oct 10, 2024

Good and very nice and work it easy

By Natalia F

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Nov 14, 2023

Great and useful course, thank you!

By Sherry H

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Mar 24, 2019

Very informative and great teacher!

By Alfonso O

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Apr 20, 2017

Great class! Absolutely enjoyable!!

By Marionel E

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Sep 23, 2020

A good course, easy to understand.

By Yoe

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Apr 18, 2017

nice chemical course for beginners

By Bryan S

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Jul 17, 2021

Alot of work but this was great!

By Fernando D G

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May 5, 2020

Great Teacher, Explains excellent

By SeonMi J

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May 21, 2020

I enjoyed this course very much.

By zoha a

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Jul 9, 2021

This course was greatly helpful

By Luz A A V

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Feb 6, 2021

Muy buen curso. Bien explicado.

By Farsana. O P

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Jun 14, 2020

Nice presentation. Very helpful

By Rodrigo N

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Jun 27, 2025

Great professor, learned a lot

By HanMin Z

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Oct 24, 2021

A basic course but beneficial.

By Eduardo A C

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Dec 28, 2017

AMAZING! I HAVE LEARNED A LOT!

By Muhammad N A

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Apr 6, 2025

this course is really awesome

By A D

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May 27, 2020

really cleared up the basics!

By Kessia D R

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Feb 2, 2026

Very good course and helpful

By Haris Č

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May 6, 2025

Amazing introductory course!

By Nyein C

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Oct 7, 2021

good course and thank sayars

By Johanna H

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Jan 27, 2017

I only wish there was more.