Chemistry 10-19-11 Chemical Formulas Review & Important Announcements

CHEMISTRY: So did today help? How’s it going with writing formulas and naming compounds? On the worksheet for tonight, write the formula in one column and in the other column, write the name of the formula you just wrote – just like we did today in class. Lab tomorrow, don’t forget the lab write-up!

A couple of important announcements: The polyatomic ion quiz will be Monday, not Tuesday. Also, don’t forget to turn your AIG trip permission slip in on Thursday.

Speaking of class – bad day for recording, especially when the teacher forgets to turn on the mic! Here’s the vodcast, but with no sound. I’m still posting it, however, because I want you have access to the “Naming Chemical Formulas” flow chart that I showed you in class today. Copy this chart into your notes and use it every time you write a chemical formula name until you can do it correctly without looking!

Chemistry 10-18-11 Binary Molecular Formulas

CHEMISTRY: Okay, I’m not saying that learning to name and write chemical formulas is as bad as a jellyfish sting, but you do have to really, really pay attention to the details!! Here’s the lecture from today on writing formulas and names for binary molecular compounds. Part of it’s really similar to what you learned to do last week for ionic compounds, but another part is totally different.

Make sure you keep everything straight. Do something that will organize all the information for you, so you won’t get confused. Also, don’t forget the lists you have to memorize, especially the one for next Tuesday – polyatomic ions!! And practice, practice, practice!!!

Chemistry 10-17-11 Chemical Formulas with Polyatomic Ions

CHEMISTRY: Great job today! Do you understand better now? Remember – baby steps, first binary ionic compounds, and now, formulas with polyatomic ions. Begin learning them now! And practice, practice, practice!!


flickr photo by skycaptaintwo

Hon Chemistry 10-13-11 Chemical Formulas Encore

HON CHEMISTRY: So is it a little clearer now? Did today’s review help? Here’s today’s review, just in case you need to save it for the future. Also, if you need a little more guided practice – help session tomorrow morning at 7:15! How’s the worksheet coming? A covalent compound means the same thing as a molecular compound – don’t let that mess you up. You’re doing great!! πŸ™‚

Hon Chemistry 10-4-11 Formulas with Polyatomic Ions & Binary Molecular Formulas

HON CHEMISTRY: Are you starting to see numbers in your sleep? Here’s the lecture from Monday on writing chemical formulas with polyatomic ions, and also an intro to binary molecular formulas. The same, but different……huh? Tons of memorization for this chapter – monatomic ions, polyatomic ions, prefixes, and this is just the beginning. Good luck, and keep practicing!!!


flickr photo by designwallah

Hon Chemistry 9-30-11 Chemical Formulas – Part 1

HON CHEMISTRY: Great start on writing and naming chemical formulas, and you did it without me! Well, kind of. πŸ™‚ Here’s the lecture from Friday. Friday we concentrated on binary ionic compounds, and Monday we’ll do compounds with polyatomic ions. Make sure to take time to practice, practice, practice this weekend. You’ll be as lost as ball in high weeds on Monday if you don’t!

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