Hon Chemistry 3-29-12 Double Replacement & Combustion Reactions

HON CHEMISTRY: You realize what we did? We finished all 17 types of reactions today. And we ended with a bang!? No, it was more like a whoosh!

Make sure you are working on memorizing all 17 of them by Monday – and forever! But don’t just memorize them. Make sure you can apply them as well. When you start to work any equation, first determine what type of reaction it is, then figure out what rule applies and follow it to determine the products. I believe in you! You can do it!! (and yes, I realize I am repeating myself, but I do and you can!)

Hon Chemistry 3-28-12 Decomposition Pt. 2 & Single Replacement Reactions

HON CHEMISTRY: You are doing a great job working with completing and balancing chemical reactions! How are you doing on memorizing them? And you got a head start on the activity series. Good job!

Here’s a lecture from today on the rest of decomposition and all of single replacement. That makes 15, so we’ll do the rest tomorrow! Careful though, don’t just memorize them. Make sure you can apply them as well. When you start to work any equation, first determine what type of reaction it is, then figure out what rule applies and follow it to determine the products. I believe in you! You can do it!!

Chemistry 3-29-12 Molecular Geometry

CHEMISTRY – Who knew we’d be doing geometry in chemistry?!? Here’s the lecture on molecular geometry, with a little practice at the beginning on polyatomic ions and resonance. Molecular geometry is super easy. Make sure you know how to draw Lewis structures, then determine the type of ABE structure and you’ve got it. Easy-peazy!

Chemistry 3-28-12 Polyatomic Ions

CHEMISTRY: Hey guys, you’re really doing a great job connecting the dots with Lewis structures! Here’s the lecture on polyatomic ions. Don’t forget to count the electrons! And then double check the number of electrons. And when you think it’s right, count the electrons!! πŸ™‚

HELP SESSION tomorrow morning (Thursday) at 7:15. Come if you’d like some extra practice or some help!

Physics 3-27-12 Wave Interactions

PHYSICS: So how many classes to you have where you play with slinkies and watch bridges collapse!?! I’m just sayin’. Here’s the lecture from Tuesday on wave interactions. Cool thing, standing waves. Check out You Tube for a video on the Tacoma Narrows Bridge similar to the one that we watched today. I’ll put the others in the Vodpod below.

Are you okay with constructive and destructive interference? Tomorrow….test review. πŸ™‚

Hon Chemistry 3-27-12 Synthesis & Decomposition Reactions

HON CHEMISTRY: Wow! So that’s where the pretty light comes from! Great job on synthesis and decomposition reactions. We’ll finish decomposition tomorrow. Now go forth and practice what you learned! (The balancing equations part, not the playing with magnesium part!) πŸ™‚

Chemistry 3-23-12 Covalent Bonds & Intro to Lewis Structures

CHEMISTRY: Well, since we began the weeks with learning how we can’t always trust what we think our eyes see, and then we ended the week with dots, I thought this would be the perfect picture to go with today’s vodcast. Can you count the black dots? How many? Are you sure?

Good luck practicing Lewis Structures this weekend! You’ll be seeing dots all over the place before you know it!! πŸ™‚


Image source http://www.urgle.com/~mike/optical/black_dots.html