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

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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 reseñas


19 de ago. de 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.


12 de jun. de 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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201 - 225 de 272 revisiones para Introduction to Chemistry: Reactions and Ratios

por Yumna N

2 de jun. de 2020

Excellent demonstration👍

por Sudhakar S K

31 de dic. de 2019

good course for beginners

por Milan D

1 de jun. de 2020

Very interesting course.

por Labib U

20 de abr. de 2020

thanks. i am very happy

por Rasha D

17 de mar. de 2018

thank you very much :)

por Абжалов Р Р

3 de dic. de 2016

Very professional!!!

por Simona E B

23 de ago. de 2021

Excellent approach!

por Tyus W

20 de jul. de 2020

This was GREAT!!!

por Dr M R K

14 de may. de 2020

great experience

por Christhian P S

4 de nov. de 2018

Thanks a lot!!!

por Matthew S

3 de ago. de 2021

amazing course

por Camila G

21 de sep. de 2020

Ótimo curso!!

por Nguyễn Q A

22 de abr. de 2020

pretty useful

por Isaac C

6 de jun. de 2019


por Marie J A

9 de jun. de 2017

amazing tutor

por Ms S

12 de jun. de 2021

very helpful

por Łukasz K

29 de ago. de 2019

Very useful!


20 de jul. de 2019


por Ariana P

13 de feb. de 2021


por Shahid I

24 de jul. de 2020

Good course

por EDNA B Z Z

11 de jul. de 2022


por 유현준

13 de sep. de 2021

good study

por Jackson L i

1 de jul. de 2021

good funny

por Javier A A M

22 de oct. de 2020

Very good

por Joshua S G

1 de ago. de 2020