Level 2 chem blog

Bonding, Ionic and Covalent

Tue, 8 Apr 2008 21:48:18 -0400

We will start with a quick lesson on ionic bonding, and take a quick quiz. Then we will begin Covalent bonding. We still need to know how to do electron configurations for both.

Bonding is a abstract chapter. We’ll learn to draw dot diagrams, predict the shape of molecules, and determine polarity. These will be important concepts for next unit. The types of bonds help determine the properties of materials.
For Labs, we’ll construct molecular models and use a computer animation program to illustrate some of the more abstract ideas.

Unit 10: Periodic Law

Wed, 26 Mar 2008 10:54:01 -0400

In this unit we’ll put together what we learned about electrons to find out why the periodic table is arranged the way it is. Did you know that it’s the ultimate chemistry cheat sheet? We’ll begin to see why compounds have the formulas they do. We’ll also see why the Noble gases are “happy.”
In the lab for this chapter, you get to play Mendeleev and measure the boiling point of an unknown element, without measuring it!

If you were absent, you can use the chart below to fill in (by hand) your Blank Representative elements table. However, you may not use this printout on the test.

Unit 9 : Electrons and light

Mon, 17 Mar 2008 15:27:40 -0400

When is a wave a particle and a particle a wave? Get ready for a weird and fascinating chapter. Electrons aren't as simple as they led you to believe in Physical Science.

We start this unit with some demonstrations and discussions of Light and Electromagnetic Radiation. How does stuff "Glow in the dark?" What makes fireworks different colors? How do fluorescent lights and Neon lights work? How does my solar calculator work?

Then we move on to electron configurations, which are the key to the "hows and whys" of the periodic table, ions and chemical bonding. In other words, most of chemistry.

The lab for this chapter is one of the favorites of the year, Flame tests, or "the Fireworks lab." Don't miss it!
We’ll also do a review exercise using a computer animation program.

Final exam review

Mon, 11 Jun 2007 09:57:43 -0400

Chemistry Level 2 Final Exam 2007: Pre Exam directions

The Chemistry Level 2 final exam requires you to conduct research by looking up data on various charts and tables. You will then be interpreting data in questions using this information.
You must be sure you find each of the following BEFORE you come in to take the exam! If you cannot find one of them, go to the downloads page to find them
DO NOT walk in on exam day and expect to be given the charts you need that day. This is your responsibility to assemble the following prior to the exam. If the links aren’t working email your teacher and we can email you a pdf file.
If you do not have a study guide for a specific chapter you may make a new one of your own. You may not photocopy or borrow another student’s work.

Be sure you have a scientific calculator and a pencil!!
Your self prepared study guides from each chapter from second semester :
Electrons Periodic law Bonding Phases of matter
Gas Laws Solutions Acids and Bases

The charts and Handouts from the year All on Downloads page
Periodic Table of the Elements Polyatomic ion chart (Formula writing)
Electron, Wave Paper VSEPR chart
Types of forces Table (you filled in) Vocabulary from Phases of matter
Vocabulary List from Solutions, Solubility and Temp chart
Metric conversion Table Mole Traffic Circle

Acids and Bases

Thu, 24 May 2007 19:48:05 -0400

In this unit, We’ll study acids, bases and pH. We’ll see what household products are acidic or basic. You’ll be surprised to see how acidic some sodas are!
We’ll use calculators to calculate the pH of solutions. Have you learned about logs in math class? We’ll show you one application of logs.
Lab (4 days!)
Acid base testing of household chemicals, 4 ways to determined pH.