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#1
Oct 6 2013 03:35pm
http://www.dhouts.com/CH_4_Problems.pdf

i need help with number 12, I don't know what to do...

if anyone could help me out, pm or post here.

i'd also like to know how you got the answer so I can actually learn.
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#2
Oct 6 2013 04:14pm
Sodium chloride - II. Sodium chlorides formula is NaCl, it dissociates into Na+ and Cl-. there are only + and - charges in glasses.

Potassium Carbonate - III since Potassium is just K+ when dissociated.

the other two, im not positive on w/o having to look up their formulas, but I believe sulfate ion has a -2 charge.


So pretty much just write out the dissociation reaction that occurs and see based on charges on ions which match up.
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#3
Oct 6 2013 04:29pm
Quote (cialda @ Oct 6 2013 05:14pm)
Sodium chloride - II. Sodium chlorides formula is NaCl, it dissociates into Na+ and Cl-. there are only + and - charges in glasses.

Potassium Carbonate - III since Potassium is just K+ when dissociated.

the other two, im not positive on w/o having to look up their formulas, but I believe sulfate ion has a -2 charge.


So pretty much just write out the dissociation reaction that occurs and see based on charges on ions which match up.


thank you so much!
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