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Volver a Introduction to Chemistry: Reactions and Ratios

Opiniones y comentarios de aprendices correspondientes a Introduction to Chemistry: Reactions and Ratios por parte de Universidad Duke

667 calificaciones
177 revisiones

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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....

Principales revisiones


Aug 20, 2020

Thank you Professor Dorian A. Canelas! It made me much more easier to understand the basic principles of chemistry and it builds me a lot of confidence in answering some of the problems in chemistry.


Jun 13, 2020

It is a wonderful course for Middle school students. A first course in Chemistry, for the gifted students who will do AP Chemistry. Not suitable for adult learners who need an advanced introduction.

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101 - 125 de 172 revisiones para Introduction to Chemistry: Reactions and Ratios

por Amira A M

Aug 14, 2020

Important course with good and various information

por kristell

Jul 10, 2019

the teacher is the best, also she is really funny

por Albert K

Jul 31, 2020

Thank you so much. This is excellent course


Jun 15, 2020

This course has helped to refresh my basics

por Afsar u D

May 13, 2020

it is excellent course for basic chemistry

por Dr. S J M

Apr 30, 2020

The course was helpful and encouraging ...

por Liz C

Jun 19, 2017

Thanks Dr Canelas! You gave me confidence.

por Mauritius X

Oct 20, 2017

I learned something new. That was my goal

por Mohammad t d

Jul 04, 2020

the lessons are very useful and exciting

por Gayathry B

May 07, 2020

I'm really glad to joined in this course

por Proshanta R

Aug 23, 2020

I have learn about many unknown things

por Carlos A C A

Aug 19, 2020

Excellent! thanks for the opportunity!

por Ong C W

May 09, 2020

Good course for

High School Chemistry

por Aline M d O

Jun 21, 2020

Really good course! I learned a lot!

por Yousef A

Jun 20, 2020

a very fruitful course of chemistry.

por Sherry H

Mar 24, 2019

Very informative and great teacher!

por Alfonso O

Apr 20, 2017

Great class! Absolutely enjoyable!!

por Yoe

Apr 18, 2017

nice chemical course for beginners

por Fernando D G

May 05, 2020

Great Teacher, Explains excellent

por SeonMi J

May 21, 2020

I enjoyed this course very much.

por Farsana. O P

Jun 14, 2020

Nice presentation. Very helpful

por Eduardo A C

Dec 29, 2017


por anwesha d

May 28, 2020

really cleared up the basics!

por Johan L

Jan 28, 2017

I only wish there was more.

por Francisco J

Jan 22, 2019

muy bueno y bien explicado