Write the net ionic equation for the following molecular equation. MgCl2(aq) + (NH4)2CO3(aq) ---> MgCO3(s) + 2NH4Cl(aq)

Question

(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s).

Answer 1

Hi May Z.,

I think you're being asked to keep track only of the ions which undergo a change of state. So things like (NH4)+ and Cl - are just along for the ride, and aren't itemized in your "net ionic" reaction. So what gets incorporated into a solid? Mg+2 and (CO3)-2 , I hope you agree? They start as ions, and end up together in the solid MgCO3(s). Can you handle it from there?

-- Cheers, -- Mr. d.