Common Substances: Chemical Names, Formulas & Other Stuff

Hey guys – thanks for a wonderful, wonderful trip today to hear Ken Ham at the Answers in Genesis conference! Did he start you tothinking? I hope so!

I thought it might be quicker for you to check your answers to #58, and get the list of the other substances that I want you to know, here. Common Substances – Chemical Names & Formulas There are just part of the master list of things you have to have memorized for the pre-test on memorization and also for the for real test! Good luck learning them! Have you tried making your own flashcards on

flickr photo by Roger Smith

Hon Chemistry 10-24-11 Empirical Formulas

HON CHEMISTRY: Great start on empirical formulas today. The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio. There’s a little added step you might have to add to the end – we’ll go over it tomorrow. Also tomorrow – molecular formulas.

flickr photo by Darwin Bell

Chemistry Polyatomic Ion Quiz Monday

CHEMISTRY: Good luck studying for the polyatomic ion quiz that is on Monday! Here’s a link to some practice that might help. Holler if I’ve left one off. I’ll be praying for you!!

Hon Chemistry 10-21-11 Percent Composition

HON CHEMISTRY: Great job today… although, it was really weird watching you chew gum in class! I think you’ll find that percent composition problems are super easy to catch on to. Make sure, though, you can write chemical formulas (I won’t give them to you!) and that you’ve memorized the formulas for acids and those common substances from #58. Then, it’s just plug and play from there! 🙂

flickr photo by Τϊζζ¥

Chemistry 10-19-11 Chemical Formulas Review & Important Announcements

CHEMISTRY: So did today help? How’s it going with writing formulas and naming compounds? On the worksheet for tonight, write the formula in one column and in the other column, write the name of the formula you just wrote – just like we did today in class. Lab tomorrow, don’t forget the lab write-up!

A couple of important announcements: The polyatomic ion quiz will be Monday, not Tuesday. Also, don’t forget to turn your AIG trip permission slip in on Thursday.

Speaking of class – bad day for recording, especially when the teacher forgets to turn on the mic! Here’s the vodcast, but with no sound. I’m still posting it, however, because I want you have access to the “Naming Chemical Formulas” flow chart that I showed you in class today. Copy this chart into your notes and use it every time you write a chemical formula name until you can do it correctly without looking!

Physics 10-19-11 Equilibrium

PHYSICS: So how is the balance in your life? 🙂 Here’s the lecture from Thursday on net force, equilibrium, and equilibrants. Were you experiencing a little déjà vu? Let’s explore that a bit more tomorrow, and then ACT prep on Friday.

Image source…/2009/08/tug-o-war1.jpg

Chemistry 10-18-11 Binary Molecular Formulas

CHEMISTRY: Okay, I’m not saying that learning to name and write chemical formulas is as bad as a jellyfish sting, but you do have to really, really pay attention to the details!! Here’s the lecture from today 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, but another part is totally different.

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, especially the one for next Tuesday – polyatomic ions!! And practice, practice, practice!!!

Hon Chemistry 10-18-11 Using Chemical Formulas – Moles & Mass

HON CHEMISTRY: Good job using chemical formulas as tools today! So it turns out there are tons of ways that you can use them. Like finding molar mass, moles, and molecules! Did it all sound familiar to you – like we were repeating yesterday’s lecture? Here’s the lecture from Tuesday.

Chemistry 10-17-11 Chemical Formulas with Polyatomic Ions

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!!

flickr photo by skycaptaintwo

Physics 10-17-11 Forces & Newton’s Law of Inertia

PHYSICS: Great first day of chapter 4! So did you really think I was going to send those eggs flying across the room? And remind me again why they didn’t? I love Newton’s first law – the law of inertia. Let’s play with a little tomorrow. Can you use what you know about mass and inertia to find the mass of an unknown object? I know you can! 🙂