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!!
Another great idea, click here for a copy of the Hints for Naming Chemical Formulas Flow Chart. Follow it every time you name chemical formulas!!
HON CHEMISTRY: So how are the chemical formulas coming? Here are a few guidelines to help polish up what you already know!
Help Session? 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 in a few days in lab!
PHYSICS: So what’s your theory about the cause of motion? And remind me again why didn’t that pen go flying across the room instead of dropping into the bottle? I love Newton’s first law – the law of inertia! Where else do you see it in action in your world?
Let’s play with this concept tomorrow. Can you use what you know about mass and inertia to find the mass of an unknown object? I know you can!
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 last week 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!!!
CHEMISTRY: Great job today learning to name binary ionic compounds – and even begin to write formulas! Tomorrow let crank it up a notch and write formulas for compounds with polyatomic ions. Speaking of those, what is your plan for all the memorization in this chapter? Word of warning – don’t wait to the last minute!!
Super important – the secret for the next few days is DON’T GET BEHIND! Keep up with me and practice, practice, practice!
HON CHEMISTRY: Are you starting to see numbers in your sleep? Here’s the lecture from Friday 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!
flickr photo by designwallah
PHYSICS: Your favorite thing to do, right? Wow! I’m sure I don’t have to remind you of all there that’s involved in getting ready for one test!
The good news? The ACT is so very do-able! All the answers are there, you just have to use what you know how to do to find them, and that takes practice, practice, practice. Do you have a better grasp of the skills that you’ll need and techniques you can use to be successful? Let’s look at the last couple of sections tomorrow in class! Fun times!!!
HON CHEMISTRY: Great start on writing and naming chemical formulas!
What’d you think? Do-able? Here’s the lecture from Thursday. Be sure and watch the beginning of the vodcast to get the new schedule and homework. Homework tonight is the thLAB and the chemical names for common substances worksheet.
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!
CHEMISTRY: Hey guys, if you get done early today with the virtual lab, here’s your assignment. Go to this site and begin reviewing/practicing what you learned a looooooonng time ago!!
PHYSICS: Super short class today!! Are you ready for the test? Below – first the ultrashort overview of the test and a look at some conceptual stuff. Below that the help session from this morning – the kid on a slide with a water gun problem and also an initial look at the rocket problem.
Don’t forget what you should do to start – Draw a picture, write what you know, resolve the resultant velocity into vertical and horizontal if you need to, and find formulas that fit (because it will hardly ever be solved with just one) and go for it!!
If you are talking angular projectiles, the resultant velocity is actually made up of two things – horizontal velocity and vertical velocity. The horizontal velocity never changes, the vertical velocity has a different direction going up and coming down, but it has the same speed at equal levels. If you’re talking horizontal projectiles, the resultant velocity is the same as the horizontal velocity of the gun – or whatever, because that’s the only kind of initial velocity it has!
Relative motion is even easier – just use the Pythagorean theorem and tangent, and use horizontal to find horizontal and vertical to find vertical. Good bless you as you study! I’ll be praying for you!!
flickr photo by Johnson Cameraface