Last modified: Sat 07/30/2016 05:13:59 pm
BCE

Do not press the RETURN or ENTER key while you are answering these questions. Your browser will interpret either the same as clicking on the Submit key.

Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.

First Name:

Last Name:

School:

1. Below are two movies (#1 and #2) watch each one and describe what you observe happening. In your description use terms like solid, liquid, solute, solvent, heterogeneous mixture, and homogeneous mixture.

movie #1

movie #2

Your description:

Your description:

2. For the following three substances indicate whether each is polar or nonpolar, and the type of intermolecular attractive force(s) (IMAF) that occur.

Substance

Polarity

IMAF #1

IMAF #2

hexane, C6H14

water, H2O

carbon tetrachloride, CCl4

3. In movie #3 water is added to a sample of carbon tetrachloride that has a colored substance already dissolved in it. Describe what you observe happening. In your description use terms like liquid, heterogeneous mixture, and homogeneous mixture.

movie #3

Your description:

 

 

4. In movie #4 hexane is added to a sample of carbon tetrachloride that has a colored substance already dissolved in it. Describe what you observe happening. In your description use terms like liquid, heterogeneous mixture, and homogeneous mixture.

movie #4

Your description:

 

5. All three liquids are present in this video, and they are mixed. can you explain what happens?

movie #5

Your description:

 

 

6. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

7. If there is one question you would like to have answered in lecture, what would that question be?