Silly (Former) Chemistry Nerd Questions

[Tysyacha]

Back when I was in college, I used to study this stuff, but I've forgotten...

 

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1. CaSO4 = chalk = wrong?!

2. "Silicon and oxygen make concrete, bricks, and glass..." Glass? Really? How?

3. Is it really true that more than half our our body is OXYGEN, not CARBON?

 

Thanks for the info (and not laughing at me).

 

--Tysyacha

[Inyri]

I have this shirt.

 

 

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It's a ferrous wheel. [insert fake laughing and eye rolling.]

[Tysyacha]

I got it BEFORE I read the spoiler tag! I'M STILL A CHEMISTRY NERD!!!! *dances wildly*

[Astrotoy7]

I have this shirt.

 

 

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It's a ferrous wheel. [insert fake laughing and eye rolling.]

 

Having the minor variant of Thalassaemia, I'm prone to bouts of Iron deficiency - I could do with that Tshirt when there's no steak around

 

mtfbwya

[RC-1162]

2. "Silicon and oxygen make concrete, bricks, and glass..." Glass? Really? How?

 

http://en.wikipedia.org/wiki/Fused_quartz

[Sabretooth]

Alchemy + Black Magic > Chemistry