- #1
bjon-07
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Hi everybody, I am new to PF and thus far have found it very interesting and helpfull.
I have a chemistry question, my test is tomorrow.
I know how to draw lewis strutures in general. But i have a question concering polyatomic ions,
from what i have learned you should treat each ion seperatly.
but on the compound KH2PO4 the struture looks like thus
H--O O
\ / (the lines should contact the p to the o's
P but for some resonce i can't make it work)
/ \
H--O O
sense PO4 is an polyatomic ion why isn't is seperate
my other question (which more critically of the two) is the structure of HCN and HN03
in both of the stutures the h is attaced to the struture. But both contain polyatmoic ions, cyanide and nitrate.
why are they seperate?
Does have something to do with them being acids( my not sure if they are acids, we have not covered acid in my chem text yet).
thank you for your help
Brandon
I have a chemistry question, my test is tomorrow.
I know how to draw lewis strutures in general. But i have a question concering polyatomic ions,
from what i have learned you should treat each ion seperatly.
but on the compound KH2PO4 the struture looks like thus
H--O O
\ / (the lines should contact the p to the o's
P but for some resonce i can't make it work)
/ \
H--O O
sense PO4 is an polyatomic ion why isn't is seperate
my other question (which more critically of the two) is the structure of HCN and HN03
in both of the stutures the h is attaced to the struture. But both contain polyatmoic ions, cyanide and nitrate.
why are they seperate?
Does have something to do with them being acids( my not sure if they are acids, we have not covered acid in my chem text yet).
thank you for your help
Brandon
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