[amani96]

I have a chemistry question.

I have to write a net ionic equation from each of the following compounds and water:
 
 
HC4H7O2
NaNO2
C5H5N
HC3H3O3
CH3NH2

Now this is what I have started....but I'm not exactly sure if I wrote the equations right.
 
HC4H7O2(aq) + H2O(l) <--> H3O-(aq) + C4H7O2+(aq)
NaNO2(aq) + H2O(l) <--> NaOH-(aq) + HNO2+(aq)
C5H5N(aq) + H2O(l) <--> C5H5NH+(aq) + OH-(aq)
HC3H3O3(aq) + H2O(l) <--> H3O-(aq) + C3H3O3+(aq)
CH3NH2(aq) + H2O(l) <--> CH3OH-(aq) + NH3+(aq)


And did I write them correctly? Are they all equilibria?

Went back and read the chapter...again...and I think I got the gist of it...

My net ionic equations would just be showing water dissocating to form either the hydronium ion or hydroxide ions and a H+. Like this,

H+ + C4H7O2-    +  H+ + OH-   <-->  H3O+ + C4H7O2-   

Canceling out the spectator ions, the net ionic equation would be

H+ + OH-  <--->  H3O+

Does that sound about right?

[Controlled Substance]

Oxidation Numbers:
http://www.chemguide.co.uk/inorganic/redox/oxidnstates.html

Solubility Rules:
http://www.ausetute.com.au/solrules.html

[Borek]

H3O-(aq)

No such ion. H₃O⁺ if anything.

NaOH-(aq)

No such ion. NaOH if anything, but it gets dissociated in water.

CH3OH-(aq)

No such ion. Nitrogen and carbon will be together (in the same molecule) in products.