HON CHEMISTRY – You’ve learned to gather the “pieces of the puzzle”, now it’s time to put them together so they can have meaning! Here’s our look again at density, and then our overivew of direct and inverse proportions. Just brief info for the test for now, and we’ll put it to practice in a couple of activities after the test.
How’re you doing on these last problems? Are you able to pull together all we’ve done in this chapter? When working problems, don’t forget to follow these problem solving steps:
- Analyze – write down what you’re given and what you’re looking for
- Plan – write a formula where you isolate the unknown on one side by itself
- Compute – plug in your data, numbers and units; then cancel the units, and if they cancel correctly, go on to the calculator. Be sure and give your answer what the correct units.
- Evaluate – does your answer make sense, have you used the correct units, do you have the correct sig figs?
As you study, remember, don’t just read your notes – practice your notes, practice the problems, practice the memorization!! By the way have you had a chance to check out the Chapter 2 Stuff to Know sheet and the chapter 2 study suggestions sheet? They are under the Test Info tab.