Monday in class we took the entire period doing a pre-test for our upcoming unit. To be honest, I was completely lost during the entire test and I didn't know how to solve any of the problems. Most of the problems were numerical, so if I didn't know the formulas of how to figure them out, I had to guess. I did some research and found some websites to help going into this unit.
This link will help with basic understanding when just starting to dig in:
http://easyscienceforkids.com/chemical-composition/
This link goes more in depth of empirical formulas and how to do the calculations:
http://pages.towson.edu/ladon/empiric.html
Here's a picture of how working out empirical formulas will look:
 |
| http://web.tenafly.k12.nj.us/~shilfstein/emp1c.gif |
No comments:
Post a Comment