Hon Chemistry 2-28-20 Resonance & Polyatomic Ions & Molecular Geometry

HON CHEMISTRY: Who knew we’d be doing geometry in chemistry?!? Great job today! Lewis structures, multiple bonds, and now resonance, polyatomic ions and molecular geometry – wow, that’s a lot you’ve conquered in the last few days!!

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. Here’s a copy of Molecular Geometry Shapes – VSEPR handout. Be sure and memorize the shape and the ABE structure that goes with it. Easy-peazy!

Here’s some good advice – don’t take shortcuts. Learn the proper steps on the easier molecules, and you’ll be able to do the hard ones. And if it’s still all Greek to you, don’t worry! Keep practicing and you’ll get it, I promise!! Don’t forget to count electrons and don’t forget CONS!

flickr photo by Ron Layters

Chemistry 2-27-20 Chapter 4 Test Overview

CHEMISTRY: God bless as you study for the chapter 4 test! Here’s our overview of the chapter from today and the practice we did on the problems, etc. Below that is an old help session that we did before the test one year. I think it would be great practice for you!

Speaking of help session – tomorrow morning, Friday, 7:20ish A.M. Come with a list of things you’d like to practice!

Have you checked out the Chapter 4 Stuff to Know Sheet? Make sure you memorize the things you need to memorize so that you can apply them on the test. And practice, practice, practice, the problems and electron configurations.

What about applications for discussion? Neon signs, photoelectric effect, spectroscopy, etc.? Another great idea for studying is to watch the videos that we watched in class – super helpful as you study for the test!! Check them out on the the earlier lesson web posts. Here are some of them:
Spectrum of the Stars (overivew of the results of the spectroscopy lab you did, shows the connection between our lab on spectroscopy and how we can identify elements), Emission Spectrum of Hydrogen (how we use it to know about the energy levels in an atom), Quantum Mechanics (about the roles of Bohr, Schrodinger, Heisenberg), and also Animated Quantum Mechanics.

God bless you! I’m praying for you!!

flickr photo by Marla J Aleman

Help Session repost:

Chemistry 2-14-17 Chapter 4 Help Session from Tammy Skinner on Vimeo.

Honors Chemistry 2-27-20 Lewis Structures & Multiple Bonds

HON CHEMISTRY – I just love dots! Incredible job today with Lewis structures!! If you were absent, be sure and watch this vodcast for some great hints on making Lewis structures easier. And make sure you practice, practice, practice! Warning: before you know it, you’ll be seeing dots everywhere!

flickr photo by Spotted drum ♥ (on & off)

Physics 2-24-20 Pascal’s Law

PHYSICS: Did you realize that fluids could produce that much force? Make’s you wonder at the awesome way God designed those beautiful under water sea creatures to withstand so much pressure, doesn’t it? This little creature is a lionfish from the waters of Lembeh, Indonesia.

Missed you guys today! Here’s the lecture on Pascal’s law and hydraulics and the like.

Physics 2-27-17 Pascal's Law from Tammy Skinner on Vimeo.

flickr photo by CW Ye

Hon Chemistry 2-24-20 Intro to Chemical Bonds & Covalent Bonding

HON CHEMISTRY: Hey guys, welcome to chemical bonds! How did you do on using electronegativity to determine bond type? Make sure you add the scale and also the diatomic molecules to your “things I have to memorize and know how to use for the test” list.

Hon Chemistry 2-15-17 Intro to Chemical Bonds & Covalent Bonding from Tammy Skinner on Vimeo.

flickr photo by Today is a good day

Physics 2-19-20 Archimedes’ Principle

PHYSICS: So when you were floating in the pool this summer, did you enjoy your fellowship with buoyant forces? 🙂 From Wednesday – Archimedes’ Principle.

Great topic for investigation! Speaking of which – what did you find? When the kid jumped out of the boat, did the water level rise, fall, or stay the same? Hmmmm…..

flickr photo by marlana

Hon Chemistry 2-10-20 Chapter 5 Overview

HON CHEMISTRY: Great overview of Chapter 5 today. This is the one where we went over test questions and then took a look at #50 and also the Marsh test for arsenic. Good stuff!

God bless you as you study! Be sure and PRACTICE. Never just look over things! PRACTICE everything!!!

Photo by Miles McDowell

Chemistry 2-18-20 Electron Configuration Notation & Blocks of the Periodic Table

CHEMISTRY: Wow! You learned a lot today! Don’t we serve an awesome God?!? You probably knew the periodic table was really organized, but did you realize that it was THAT organized? Awesome!

Then, just when you were getting the hang of drawing arrows, I go and change it! But don’t you think writing electron configuration notation is a whole lot shorter than doing orbital notation? Don’t get me wrong, knowing how to do orbital is great for seeing how the electrons are paired, but this way is waaaay shorter!

Be sure and practice with the homework tonight, and don’t forget to use the Aufbau “chart”!!!!

Need extra practice or help with this chapter? Ask me about a help session next week!

Photo by Joanna Kosinska on Unsplash