Sunday, January 6, 2008

Chapter 1

Preamble: Kay so this is pretty much the goofy chapter at the beginning where they tell you all the stuff that is really obvious so that you will keep reading to the next chapter, where it will probably get harder, more complicated and not-so-nice. But I'll try to make it as easy as I can for you!!
First of all, thanks so much for being willing to explore this with me! It really means a lot to me. Plus it will give me a chance to bone up on my chemistry, which I've been wanting to do for a while, and lets me teach which is a pleasure!

Just a couple of "administrative" notes...
The number enclosed in parentheses is the amount of marks that the question is worth. In open-ended questions (such as number twelve), include as many points in your answer as there are marks.

Each chapter should be handed in by midnight on Saturday. Is this convenient for you, or would you prefer another time?

Okay enough chitchat, lets get down to business...

1. Read the chapter.

2. (34) Finish the following chapter questions (marks posted below each question):
3, 7, 11, 15, 17, 19, 21, 25, 33.
2, 4, 4, 4, 4, 4, 4, 4, 4.

3. (6) What are the names of the elements that make up:
a. Ethanol
b. Table sugar
c. Table salt
d. Mica
e. Bismuth
f. Codeine

4. (2) What is the difference between a pure substance and an element?

5. (3) What are the two most abundant elements on earth? What common substance do these make?

6. (3) What do you notice about the two most common elements in the universe in regards to the periodic table? Make a guess as to why this is.

7. (3) What is the difference between a molecule and an atom? When you breathe, is your body trying to obtain a molecule or an atom?

8. (2) How many elements make up a molecule of aspirin? How many atoms?

9. (2) How many elements make up a molecule of Ca(NO3)2? How many atoms?

10. (3) Find another substance that is commonly thought of as toxic (ie bad) and find a good use for it (see "good vs bad properties for a chemical substance" on page 4).

11. (4) What kind of change is it?
a. boiling acetic acid to produce acetic acid vapour
b. dissolving salt into water
c. burning a batch of chocolate chip cookies
d. making acetic acid from baking soda and vinegar

12. (3) What can you say about the reversibility of physical changes versus chemical changes?

34 marks for chapter questions
31 marks for assignment questions
65 marks total


Bonus: (1) To what classic video game character is the latin word (and hence the symbol on the periodic table) for lead related? Hint: it has to do with his/her profession.

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