Monday 10/21/19

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Today we celebrate Avogadro's number and the Mole! 

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Here is a beautiful intro to the mole https://www.youtube.com/watch?v=TEl4jeETVmg

Here is another nice video https://www.youtube.com/watch?v=wI56mHUDJgQ

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2nd, 3rd, and 7th have three things due:  "Shedding Light on Ions" demo/ lab sheet, worksheet on Writing and Naming Binary Formulas, and the MOLETOON.  (If you missed the shedding light on ions demo, I expected you to view the demo with the accompanying page that was posted last Thursday...no excuses for not having it :(

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4th and 6th have two things due:  Worksheet on Writing and Naming Binary Formulas and the MOLETOON.

  

As part of our Mole day festivities we will be completing a lab involving the Bunsen burner.  Long hair must be tied back.  Goggles and closed toe shoes are critical.  You will be burning a piece of Mg ribbon, wooden kitchen matches and one marshmallow.  Making "smoles" on Mole Day using the Bunsen burner has been a long standing tradition.  You will get one marshmallow from me.  If you choose to make "smoles", you must bring your own "smole" supplies.  NO PEANUTS PLEASE.  Of course, you must clean up after yourself.  The lab page needs to be completed and turned in BEFORE you will be allowed to "dig" into the "smoles".  See what I did there?

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 Tuesday 10/22/19

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I will have a sub today, so be on your best behavior.  Come to class on time and don't ask to go anywhere.  

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You will grade the binary formula page from last week first.

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Then you will complete the "Conference Self-Assessment" sheet.  I use these for conferences.  You will list 3 strengths, 3 areas you need to improve and 3 short termed attainable goals.  An important part of self improvement is introspection and reflection.

This must be turned in TODAY before you leave.

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You will then have two formula worksheet packets to complete.  The first one is writing ionic formulas that involve polyatomic ions.  My advice is put the ion in parentheses first with the charge outside the parentheses.  Use the "criss cross" method.  It works.  REMEMBER, the formula for the polyion cannot be changed.  The directions are included on the worksheet.

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The other worksheet is writing and naming binary covalent compound formulas.  This uses a prefix system.  Let the prefix tell you what the subscript is. The first atom on the right only takes a prefix if there is more than one. The second atom on the left always gets a prefix even if there is only one.  The prefix system and the directions with lots of examples are included on the worksheet.  

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I am terribly sorry, but I do not have pdf files for either of these.

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Both will be due on Wednesday.

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Wednesday 10/23/19

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I also have to be out this afternoon.  I hope you don't forget me :)

We will grade the two worksheets then take a brief open not quiz on formula writing and naming.

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