Wednesday, March 2, 2011

Week 8: A Question of Balance

Semiconductor of the Week: Silicon

Silicon by mass is the 8th most abundant element found in the universe! That seems like such an amazing thing to know. I don't know how they figured out all of the contents of the universe, but somehow they know. I also don't know who "they" are, but I'm impressed. On Earth silicon makes up 27.7% of the mass of the Earth's crust making it the second most abundant element in the crust after oxygen. Silicon is a very useful element, able to form everyday things such as glass, cement and ceramics as well as many different kinds of plastics. Silicon has 4 electrons in its outer electron orbital that prefers 8 just like Carbon, giving it the ability to combine with many other elements to make all types of different molecules. We use trace amounts of silicon in our bodies to metabolize plants, which makes me, being solely a plant eater, very appreciative to silicon for helping me consume yummy plants!

Chembalancer

This site was super fun! I really liked doing the balancing games. It was good practice for the math section of my brains that have not been used very often lately.

General Chemistry - Balancing Equations

I didn't like how I had to actually download and save each file on my computer to look at them. That seems somewhat inefficient and generally I would rather just open something in its own website rather than downloading unknown files on to my computer. That being said, I did download the file since I have to do this assignment, and then the darn thing wouldn't open or play or anything. So I didn't get to check out this link even though I tried.

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