Chemistry 11-29-22 Formula Mass & Molar Mass

CHEMISTRY: Now that you’ve learned to write and name chemical formulas, it time to take it to the next level and learn to use chemical formulas as a tool. Woohoo!!

Great job today with formula mass and molar mass! Be sure and show your work – and don’t forget to include the units!!


Photo by Hunter Haley on Unsplash

Hon Chemistry 11-28-22 Chapter 7 Test Overview

HONORS CHEMISTRY: God bless you as you study for the test! Here’s our overview of the test from today.

Have you been using the “Chapter 7 Stuff to Know & Know How to Do” sheet? It’s a great way to get organized in studying for the test. I know it seems like a lot, but you can do it!

First priority – make sure that you have memorized EVERYTHING. Then, go to The Physics Classroom and/or sciencegeek.net and make sure you can write and name chemical formulas. Practice, practice, practice!!! Then start practicing the different kinds of problems – do at least three of each one of them. And also try those on sciencegeek.net. That’s always some good practice. God bless – I’ll be praying for you!


Photo by Alexandre Chambon on Unsplash

Chemistry 11-29-22 Oxidation Numbers

CHEMISTRY: One man’s rust is another student’s lesson in chemistry! Great job today with oxidation numbers. Now it’s time to go and practice applying them! Try to do your homework without your notes first. Then go back and check and see what you actually knew. Great way to check up on yourself.


flickr photo by scottwillis

Physics 11-17-22 The Work Energy Theorem & Conservation of Energy

PHYSICS: See?! I wasn’t kidding yesterday about the balancing rocks movement!

Great job today on making connections between work and energy and the conservation of energy! I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!


Photo by Deniz Altindas on Unsplash

Hon Chemistry 11-17-22 Polymers

HON CHEMISTRY: Oh, my word! We finally finished the chapter! Have you had a chance to check out the Chapter 7 Stuff to Know sheet?

Also amazing – did you realize molecules could be that large? And so many of them! Don’t you think polymers are some pretty unique compounds? How about some applications?

Some items for contemplation: why are certain plastics recyclable and others not…and what about dishwasher and microwave safe?


Image source: http://www.packtech.ca/pb/images/img32161428fffbe41e07.jpg

Hon Chemistry 11-16-22 Empirical & Molecular Formula Homework

HON CHEMISTRY: Are you starting to figure out the steps of working empirical and molecular formula problems? First – a heads up on the virtual lab for Friday, and then a quick overview of some of the homework problems from last night.

My best advice on this – don’t round! Or at least don’t round too much – carry decimals out to two or three places. And PRACTICE these same problems over and over until you get them!


Photo by Moriah Wolfe on Unsplash

Chemistry 11-16-22 Binary Molecular Formulas

CHEMISTRY: Do you feel like you have letter and numbers swimming in your eyes? This is one of those times that paying attention to details is super, super important! Here’s the lecture from Thursday on writing formulas and names for binary molecular compounds. Part of it’s really similar to what you learned to do for ionic compounds, but another part is totally different. Details!!

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 – it’s getting larger and larger!! And practice, practice, practice!!!

Need extra practice? Help session Thursday morning, 7:30 AM


flickr photo by Roger Smith

Physics 11-15-22 Work & Energy

PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it work after all?

Great job today on making connections between work and energy! I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!

Physics 11-17-16 Work & Energy from Tammy Skinner on Vimeo.

flickr photo by *hb19