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Topic: just wanna make sure...  (Read 4464 times)

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redXI

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just wanna make sure...
« on: August 16, 2005, 07:15:25 AM »
Atoms present for Fe2 = 2 iron

Atoms present for Ca = 1 Calcium

then what are the atoms present for (So4)^3? I have no idea.  ???
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Offline Donaldson Tan

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Re:just wanna make sure...
« Reply #1 on: August 16, 2005, 09:09:32 AM »
(SO4)3 means there are 3 units of SO4
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redXI

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Re:just wanna make sure...
« Reply #2 on: August 16, 2005, 10:04:31 AM »
So, you mean S=3, O=12 ??
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briteyellowness

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Re:just wanna make sure...
« Reply #3 on: August 16, 2005, 10:59:38 AM »
yes
(AxBy)z
means
A has x*z atoms
B has y*z atoms

there's no So element, i think you know that, so it's SO (with its subscripts).  
it's S (sulfur) and O (oxygen)
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