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SYMBOLS QUIZ
Right side Periodic table

Question #1a: In this Periodic Table, what is the color of ink used for the symbols for copper (Cu), silver (Ag), gold (Au), and mercury (Hg)?

Question #1b: What is the color of the elements copper, silver, gold, and mercury?

2222 dots

Question #2:
In the image is the numeral 2222. Each of these "2" numerals look the same; however, they all have different values. How many times larger is the value of the left "2" compared to the right "2"?
(Don't count them. There are 2000 dots for the left 2)

Symbols
versus
the real thing

Answer True or False to the following statements;
3a. Cl is the chemical chlorine.
3b. Cl is the symbol for chlorine.
3c. Cl2 is toxic.
3d. The gas represented by Cl2 is toxic.
3e. The shape of the letter v is the top half of the letter X.
3f. The letter grade of "A" means you know the subject.
3g. "NaCl" tastes salty.
3h. The substance represented by "NaCl" tastes salty.
3i. This numeral 8 is bigger than this numeral 2.
3j. The number 8 is bigger than the number 2.
3k. This numeral "3" is bigger than this numeral "
9".

water drop

Questions #4: What is the difference between these three "formulas"
a. H2O

b. H20

c. HOH

d. Which is (are) the correct formula for water.

m and m's

Question #5:

A milligram (thousandth of a gram) is abbreviated as "mg." The symbol "m" also is used to represent the spin of an electron. A meter is also abbreviated as "m".
5a) How are you going to know which "m" they are talking about?


5b) What does the "m" stand for in "E=mc2"?

5c) What does the "m" stand for on these M & M's?

 

infinity

Question #6:
#6a: The numeral 8 turned on its side becomes what symbol?

#6b: How many times larger did the new symbol become?

#6c: How many times larger than the number 8 is the number represented by this new symbol?

Question #7:

7a) These students are asked, "How tall are you?" and they must answer without the use of symbols (words or numerals). How could they do that? (hint: the solution is easy)

7b) You are asked, "How heavy is your backpack?" How can you let someone know its weight without using symbols (words or numerals)?

Earth

Question #8:
One of the below masses represents the mass of the Earth. The other represents the mass of 15 electrons. 8a) Even though the difference in mass is huge, what is the only difference in the symbols that represent these masses?
6 x 1027 g
6 x 10-27 g

8b) What are the above two masses written in kilograms?


Question #9:

In the bottom just right of center are 3 letters, DMS. A Google search finds too many Web pages. In Wikipedia a search for DMS finds about 50 articles ranging from
Dealership Management System to Dickerson Middle School; fortunately, Wikipedia groups these articles, and in one grouping called "In Science" we find a chemistry entry called
Dimethyl Sulfide. Now we know what the DMS stands for. Here is the link to that article: http://en.wikipedia.org/wiki/Dimethyl_sulfide
One of my labs in CHM107LL involves boiling red cabbage. I've had a few students complain about the smell of cooked cabbage.
#9a: Read the dimethyl sulfide article in Wikipedia and report what other foods contain dimethyl sulfide.
#9b: What is the molar mass (molecular weight) of dimethyl sulfude?
#9c: The chalkboard also has HNO3. What is that?

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