'Intelligent-design' school board ousted in Penn

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Apparently they had a new election for the school board and kicked the nutcases off. Good riddance. Reason wins.

Note: Re-posted from my old OO.net blog

When aluminum is heated in oxygen, aluminum oxide is formed. What weight of the oxide can be obtained from 25.0g of the metal?

From my stoichiometry worksheet. (I've done this problem already.)

Note: Re-posted from my old OO.net blog

What is the molecular shape of OCl2?

Bonus: What is the shape of IF5?

Super Bonus: Are they polar or non-polar?

PS~ Sorry this is late. I always get thrown off when we have a day off.

Note: Re-posted from my old OO.net blog

Is it just me, or is this theory a little bit weird? It bothers me that a lot of it is arbitrary. My Chem book spent at least a couple of paragraphs emphasizing that it was just a "model" and that it was based on a lot of "assumptions." Maybe it's just because I'm in a higher level science, but it certainly was a lot more comfortable when ( Read more... )

Hello people!
Let's see, since I just started quantum mechanics, how about this:

According to the quantum mechanical model, what is the electron configuration for Bromine?

BONUS: What is the configuration for Platinum?

What is the maximum number of electrons that can have the quantum number n=5?

Note: Re-posted from my old OO.net blog

So I'm taking Advanced Chemistry this year. We've started quantum mechanics. The concept doesn't seem all that difficult to me right now, but I am sort-of shocked that all of this could have been "hiding" in the pseudo-chemistry I've done in my past science courses. It rather makes Lewis Dot structures look like stick figures compared to the Mona ( Read more... )

Since my mind is all on chem right now because I have to memorize common ions for Ad Chem by Thursday... Here's a chem question.

What is the chemical formula for Sulfate? (no googling it)

Note: Re-posted from my old OO.net blog

I am so tired of hearing about Intelligent Design. I'm almost ready to say just freaking let them teach it so all the Evangelicals will SHUT UP! God Almighty... It's not that I don't think kids are smart enough to be able to throw this bs back in the teacher's face. Okay it kind of is, but really now, there's not a whole lot of hope that those ( Read more... )

This morning I was eating my breakfast and reading today's paper as I like to do when I was assaulted by a story about President Bush advocatng the teaching of intelligent design in science classes ( Read more... )

Sorry this one is a bit late; I was sick yesterday.

Given:
oC stands for degrees celcius

the specific heat of ice is 2.09 J/g oC
the specific heat of water is 4.184 J/g oC
the specific heat of steam is 1.97 J/g oC
one mole of water weighs 18.0185 g
the molar heat of fusion of ice is 6.01 kJ/mol
the molar heat of vaporization of water is 40.8 kJ/mol
ice ( Read more... )