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Text Comments (28)

0 answers

Post by Timothy miranda on April 28, 2010

watched the 2 minutes of the video. He seems like a great professor. Later this year I'm definitely going to sit and listen to each of his lectures on this topic.

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Post by Atiq Allah on August 11, 2010

Very well presented and a concise video.Surely saves substantial amounts of time than a dull textbooks.

1 answer

Last reply by: Nagayasu Toshitatsu
Mon Jul 30, 2012 8:33 AM

Post by Laronda Johnson on August 20, 2010

great teaching

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Post by Mohammed Jaweed on September 3, 2010

Loved the vidEO

way better than stupid public school teacher who waste students time

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Post by Joseph Priestley on October 26, 2010

Very good teaching pace.

3 answers

Last reply by: stephen legge
Wed Feb 20, 2013 6:42 PM

Post by Vasilios Sahinidis on December 28, 2010

Sorry...isn't this lecture supposed to be a bit longer? I believe Professor Goldwhite was in the middle of a sentence when the video abruptly ended.

3 answers

Last reply by: Jacob Mack
Sat Aug 4, 2012 11:04 PM

Post by Maricarmen George on February 14, 2011

It keeps re buffering and going back to the very beginning. "Welcome to Educator", kind of frustrating.

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Post by Abdul Khalid on June 5, 2011

he reminds me of ducky from ncis!!

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Post by Valtio Cooper on December 4, 2011

your wonderful sir

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Post by emmanuel arthur on May 30, 2012

thanks prof...you saved me a lot of time behind the stupid text books.

1 answer

Last reply by: Ma. Louiegine Janaban
Mon Feb 11, 2013 3:06 PM

Post by Bill Kennedy on June 22, 2012

Is a change of state and a change of phase the same thing?

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Post by Jacob Mack on August 4, 2012

Yes Bill they are the same.

2 answers

Last reply by: Joshua Chung
Sat Sep 29, 2012 2:55 AM

Post by Linh La on August 28, 2012

Why is air a homogeneous mixture? It has different properties.

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Post by Chander Dhawan on October 10, 2012

I wish he was my normal teacher.

Great teaching.

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Post by Irina Tokar on December 23, 2012

Love this, simple and clear.

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Post by Edward Hook on February 3 at 10:59:26 AM

Yes, nice lecture!

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Post by Sarawut Chaiyadech on February 9 at 05:06:15 PM

Respect a lot sir!

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Post by Marian Iskandar on April 14 at 12:39:17 AM

Such an excellent teacher! :)

Introduction to Chemistry

  • Which sciences are closely related to chemistry

  • Learn the most important physical changes; contrast them with chemical changes

  • Definitions: Heterogeneous and homogeneous materials

  • Definitions: Pure substances: compounds and elements

Introduction to Chemistry

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry