H2co3(aq) + h200 h30 (aq) + hco3 (aq).
what is the correct equilibrium expression?
© b.
0 c.
ô d.
"ka" = (["h"_3"o"a+]["hco" 3^(-2)/(["h"_2"co"_3])
"ka" = (["h"_3"o"a+]["h"_2"co"_3])/(["heo" _3^(-1)
"ka" = (t"h"_2"co"_3]["h"_2"o"] ["h"_3"o"a+]["hco"
"ka" = (["h"_3"o"a+]["hco"_3^(-1)/(["h"_2" co"_3]["h"_2"o"]

Explanation:

Several rules should be followed to write any equilibrium expression properly. In the context of this problem, we're dealing with an aqueous equilibrium:

Following the guidelines, we will omit liquid water and we will include all the other species in the constant. Each coefficient in the balanced equation is '1', so no powers required. Multiply the concentrations of the two products and divide by the concentration of carbonic acid:

i think it's c. i'm not sure but i think so.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.