What is the product of an acid-carbonate reaction?

[Jp_Garant]

Hi Guys. This is more chemistry than physics but maybe you can help.
I am having a hard time find out what (salt) will appear as a product, in an acid-carbonate reaction.

Example from my textbook: HC2 H3 O2 + K2 CO3 --> CO2 + H20 + (salt)

We know that it will always give Carbon Dioxide and Water, and a salt.

How do i find out what the salt is?? The full balanced answer for the salt is 2 KC2 H2 O2 but i don't know how to obtain that!

I know for acids-base, we must take the cation of the base and the anion of the acid.. but in this case? Let me know, thanks :)

 

[Ygggdrasil]

For organic acids, it is helpful to write them out to emphasize their structure. For example, acetic acid (HC2 H3 O2 in your notation) is more clearly written as CH₃COOH, which dissociates into acetate ions and a proton: CH₃COO^- + H⁺.

The salt remaining after the reaction is potassium acetate (K⁺ CH₃COO^-).