HON CHEMISTRY: So how are the chemical formulas and chemical names coming? With oxidation numbers, you now have a few guidelines to help polish up what you already know! First below is the lesson from today on oxidation numbers, and below that the help session from this morning.
And don’t forget to add one more thing to your “make sure you memorize for the test” list: polyatomic ions, chemical names and formulas for common substances, binary acids, oxyacids, prefixes, and from today oxidation rules. Oxidation rules! We’ve really already been using oxidation numbers, you just didn’t know it!
But does it all matter? These complicated rules about naming compounds, I mean. Let’s find out tomorrow in lab!
Hon Chemistry 10-25-16 Oxidation Numbers & Help Session from Tammy Skinner on Vimeo.
flickr photo by scottwillis
Hon Chemistry 10-25-16 Help Session from Tammy Skinner on Vimeo.
PHYSICS: Great work today thinking through this one and also the “Wanda has a sign” problems! How you look at problems from the beginning can make a huge difference – huh?
A couple of things that work for me when doing equilibrium, etc., problems – first, draw them. Then go back through and separate resultants into components. If an object is in equilibrium, then there are no net forces – all the forces in the x direction balance – everything left equals everything right, and all the forces up equal all the forces down.
You’ve got all the ammo you need, now go forth and conquer!
Answers for the Equilibrants II worksheet are below:
- Fn = 3430 N upward against feet
- Fn1 = Fn2 = 1890 N upward on each foot
- F forward = 4.59 N
- T1 = T2 = 1760 N
- T1 = 1360 N and T2 = 680. N
flickr photo by loop_oh
To My Beautiful Chemistry Students: I miss you today! Here is the assignment for Friday:
How can chemistry – or science, technology, engineering, and mathematics be important to your everyday life? TONS of ways, and this year we’ll be using Science In the News to research just that!
IMPORTANT guidelines for the assignment:
- Find your article on the website sciencenewsforstudents.org
- Make sure you pick an article you find interesting and that you understand!!
- Make sure you pick an article that you can use to answer the questions on the Science In the News sheet. If there are questions you cannot answer with the type of article you have – pick another article!!!
- The SItN assignment must be handwritten on notebook paper – you may write on the back
IMPORTANT #2: When you are finished today, put your laptop up in the correct slot and plug it in!!
To My Beautiful Honors Chemistry Students: I miss you today! Here is the assignment for Friday:
A great way to practice writing and naming chemical formulas correctly is to go to sciencegeek.net and practice the Chemistry Review Activities. I want you to practice two sections from Unit 2 and Unit 3. Click on the sections below to go the the site.
Use your own scratch paper to do your work and figure out formulas. Be sure and check the syllabus to see how, when, and where you turn in this assignment. If you get done early, go back and practice other sections over and over until you can go through each one without making any mistakes!
IMPORTANT: When you are finished today, put your laptop up in the correct slot and plug it in!! Have a great day!
HON CHEMISTRY: Okay, I’m not saying that learning to name and write chemical formulas is as bad as a jellyfish sting (you’ll get that in a minute!), but you do have to really, really pay attention to the details!! Here’s our discussion on writing formulas and names for binary molecular compounds. Part of it’s really similar to what you learned to do for ionic compounds, don’t you think? The other part is totally different, though!
Make sure you keep everything straight. Find a way to organize all the information for yourself so you won’t get confused. Also, don’t forget the lists you have to memorize – chemical names for common substances, polyatomic ions, acids, and numerical prefixes. And practice, practice, practice!!!
And did I mention polyatomic ions? Are you getting ready for that quiz on Monday…..??
Hon Chemistry 10-20-16 Binary Molecular Formulas from Tammy Skinner on Vimeo.
Image source casch52
PHYSICS: So, how is the balance in your life? Here’s the lesson from Thursday on net force, equilibrium, and equilibrants. Were you experiencing a little déjà vu?
Great job today! Thank you, Hannah and Mary Addison, and Jonathan and Patrick, for being such good sports!!!
Physics 10-20-16 Forces & Equilibrium from Tammy Skinner on Vimeo.
Image source phoenix.fanster.com/…/2009/08/tug-o-war1.jpg
PHYSICS: Remind me again why didn’t that pen go flying across the room instead of dropping into the bottle? Hmmm…..
So what do you reckon is the inertia of this car? Great start today relating mass to inertia! Now go forth and apply what you know to find the mass of that spool of copper wire!
Physics 10-18-16 Newton's Law of Inertia, Pt. 2 from Tammy Skinner on Vimeo.
Unsplash.com photo by Rodolfo Mari
HON CHEMISTRY: Are you starting to see numbers in your sleep? Here’s our discussion on writing chemical formulas with polyatomic ions. The same………but different?
Tons of memorization for this chapter – monatomic ions, polyatomic ions, and this is just the beginning! Start now!!
Hon Chemistry 10-18-16 Formulas with Polyatomic Ions from Tammy Skinner on Vimeo.
flickr photo by designwallah
CHEMISTRY – Are you ready? God bless you as you study! Here’s the overview of the test that we did in class today. Speaking of videos – have you watched the video clips on Cu, P, and Si? You can find them at www.periodicvideos.com.
Make sure you aren’t just reading your book and notes. First, memorize the facts, then go back and make sure you can apply the concepts. Study examples, make your own examples, practice making questions. And don’t forget, if you are getting lost with everything you need to know, or if you’re not sure how to study, click here for the Chapter 1 Stuff to Know & Study Suggestions sheet.
Also, don’t forget the great review games that are in the Student Premium section of the online textbook. You can do this – I believe in you! I’m praying for you!!
Chemistry 10-17-16 Chapter 1 Test Overview from Tammy Skinner on Vimeo.
Image source wordle.net
HON CHEMISTRY: Great start on writing and naming chemical formulas! What’d you think? Do-able? Absolutely!!
Today we concentrated on binary ionic compounds today; tomorrow we’ll do compounds with polyatomic ions. We’ll go kind of slow to begin with, but make sure to take time to practice, practice, practice, and learn it step by step. You’ll be as lost as ball in high weeds if you let yourself get behind!
Hon Chemistry 10-17-16 Chemical Formulas – Part 1 from Tammy Skinner on Vimeo.
flickr photo by ludie cochrane