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#Post#: 11--------------------------------------------------
Ctrl + V thread
By: Concertony Date: September 27, 2013, 2:59 pm
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Yeah.
Go? :)
#Post#: 12--------------------------------------------------
Re: Ctrl + V thread
By: KoolBox Date: September 27, 2013, 3:09 pm
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HTML http://hottopicforum.createaforum.com/index.php
#Post#: 19--------------------------------------------------
Re: Ctrl + V thread
By: Alexmd Date: September 28, 2013, 6:07 am
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80.43.167.25
don't ask
#Post#: 21--------------------------------------------------
Re: Ctrl + V thread
By: KoolBox Date: September 28, 2013, 6:09 am
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Will you join my new forum? It's my best forum. And it's one
I'll be sticking to for a long long time. So I'd like to invite
you. You are one of the few members I've invited cause you're
one of my few faves. Will you come, join and make the forum
brighter?
HTML http://hottopicforum.createaforum.com/index.php
xD
#Post#: 58--------------------------------------------------
Re: Ctrl + V thread
By: Luca Date: September 28, 2013, 3:39 pm
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sanity
#Post#: 193--------------------------------------------------
Re: Ctrl + V thread
By: Red Bloony Date: September 29, 2013, 9:10 am
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all of you make me sick!
#Post#: 262--------------------------------------------------
Re: Ctrl + V thread
By: Concertony Date: September 29, 2013, 11:57 am
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Best AnswerVoter's Choice
Jeannie Physics Teacher answered 5 years ago
If you know the element, look up the atomic mass on the periodic
table. It's the number with places after the decimal. If there
are only two isotopes they have to add up to 100% (or in decimal
form 1) so you set it up like this:
(atomic weight of one isotope)(x) + (atomic weight of other
isotope)(1-x) = the atomic mass you find on the table.
Use algebra to find x. Don't forget to use the distributive
property. Example: Cl-35 weighs 34.969 amu Cl-37 weighs 36.966
amu
(34.969)(x) + (36.966)(1-x) = 35.453 (on the table for Chlorine)
34.969 x + 36.966 - 36.966 x = 35.453
-1.997 x = -1.513
x = 0.75764 so Cl-35 abundance is 75.764% and Cl-37 is 24.236 %
#Post#: 297--------------------------------------------------
Re: Ctrl + V thread
By: Luca Date: September 29, 2013, 1:42 pm
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HTML http://i42.tinypic.com/2rcxrbc.jpg
#Post#: 308--------------------------------------------------
Re: Ctrl + V thread
By: Concertony Date: September 29, 2013, 1:54 pm
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With the popularity of Sparrowhawk racing in Berrean booming,
the growing number of retired racing Sparrowhawks being
abandoned on the streets has become harder to ignore. As
irresistibly cute pictures of sad-looking Sparrowhawks fill up
the pages of newspapers, the time has come for government
action.
#Post#: 325--------------------------------------------------
Re: Ctrl + V thread
By: KoolBox Date: September 29, 2013, 2:42 pm
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