Question

How would you complete this Bronsted-Lowrt reaction? `HCO_3^(-) (aq)+ H^(+) (aq) rightleftharpoons ?`

Answer 1

`HCO_3^(-) + H^(+)(aq) rightleftharpoonsH_2O(l) + CO_2(g)uarr`

Explanation:

Alternatively,

`HCO_3^(-) + H^(+)(aq) rightleftharpoonsH_2CO_3(aq)`

`H_2CO_3` is so-called `"carbonic acid"`; which is probably better represented as `H_2O*CO_2(aq)`. You could not buy a bottle of the same, though you could make solutions of `CO_2`, which we typically do when we make a carbonated drink.