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

4.7
stars
1,349 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.

DP

Feb 5, 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!

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251 - 275 of 337 Reviews for Introduction to Chemistry: Reactions and Ratios

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

By Isaac C

Jun 6, 2019

Excellent!!!!

By Marie J A

Jun 9, 2017

amazing tutor

By Ms S

Jun 12, 2021

very helpful

By Łukasz K

Aug 29, 2019

Very useful!

By JAYDEEP V

Jul 20, 2019

best........

By Lisseth M

Mar 17, 2023

good Course

By Ariana P

Feb 13, 2021

Magnificent

By Shahid I

Jul 24, 2020

Good course

By Ednita Z

Jul 11, 2022

EXCELENTE

By 유현준

Sep 13, 2021

good study

By Jackson L i

Jul 1, 2021

good funny