Copper-to-Gold Penny Lab

In the laboratory completed in class, you created an alloy called brass. Research alloys on the internet, and then answer the following questions:

1. There is an alloy called "Nitinol", which is very unique. Describe why this alloy is unique.

2. Find a video online that demonstrates "Nitinol" being used. List the url (http://) address of the video.

3. Stainless steel is a very common alloy, containing iron and chromium, as well as carbon. Stainless steel can be classified into one of four different categories; Martensitic, Ferritic, Austenitic, or Duplex. Which category would a stainless steel be if it had 12% chromium? How do you know?

4. What alloy is a combination of COPPER and TIN?

5. What are the names of TWO other commo used alloys, and what are their uses?

Research Sodium hydroxide (NaOH), then answer the following questions:

6. List 5 uses of sodium hydroxide.

7. Describe in your OWN words, some of the dangers of sodium hydroxide. A good source is here: (http://www.ccohs.ca/oshanswers/chemicals/chem_profiles/sodium_hydroxide/health_sod.html)

Write your response, and then post it as a COMMENT to THIS post. Please note, your ability to view other student's responses has been blocked for this assignment.