Chemistry 10-22-14 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!!

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!!

CHEMISTRY 10-22-14 Chemical Formulas with Polyatomic Ions from Tammy Skinner on Vimeo.

flickr photo by skycaptaintwo

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Hon Chemistry 10-22-14 Oxidation Numbers

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!

HON CHEMISTRY 10-22-14 Oxidation Numbers from Tammy Skinner on Vimeo.

flickr photo by scottwillis

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Physics 10-22-14 Forces & Newton’s Law of Inertia

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! 🙂

PHYSICS 10-22-14 Forces & Newton’s Law of Inertia from Tammy Skinner on Vimeo.