Name: 

Course:  Technical Science Fundamentals of Chemistry Introductory Science General Science

1.  Define the terms Soluble and Insoluble

Soluble: 

Insoluble: 

2.    Which end (pole) of the water molecule is positive? Which end is negative?

Oxygen end:            Hydrogen end: 

3.  Why is one end negative and one end positive?

4.  What are hydrogen bonds?

Go to the Soap and Detergent Association web site 

 http://www.cleaning101.com/cleaning/soaps_and_detergents.html  

Follow the link to Chemistry

5.  What is the purpose of a surfactant in a cleaning product?

6.  Why isn't water very good at cleaning greasy or oily dirt?

7.  A soap molecule has two ends; the (water loving) and the (water hating) end.

8.  Label the polar and nonpolar ends of the soap molecule: 
                                                              ( polar / nonpolar )                     ( polar / nonpolar )

9.  Explain how soap helps remove greasy dirt 

10.  What is the difference between a detergent and a soap?  

11.  Many soaps don't work well in "hard water".  What is hard water?

12.  What ions are associated with hard water? 

13.  How does hard water make soap less effective?

Search the site for the term "Builder"

14.  How do builders help soap work better in hard water?

Go Back to the "Cleaning Products Overview" and follow the link to safety.

15.  Define the following terms

Toxicity =

Intended Exposure =

Unintended Exposure =

Effect =

16.  What signal word would appear on a product if it could cause long-term damage?

17.  Why would a person who handles these types of products on the job need to be more careful than a customer handling the same product?