Question

Question #5fb9b

Answer 1

`NaOH(aq) + CO_2 -> NaHCO_3(aq)`

Explanation:

This is a two stage reaction.

The carbon dioxide first reacts with water to form the intermediate, carbonic acid:

`CO_2 + H_2O(l) -> H_2CO_3(aq)`

Then the carbonic acid reacts with sodium hydroxide to form the product, sodium bicarbonate:

`H_2CO_3(aq) + NaOH(aq) ->NaHCO_3(aq) + H_2O(l)`

We can combine these equations to get an overall summary of the reaction:

`CO_2 + H_2O(l) + H_2CO_3(aq) + NaOH(aq) -> NaHCO_3(aq) + H_2O(l) + H_2CO_3(aq)`

This isn't very easy to read, so we cancel out `H_2O` and `H_2CO_3` from both sides (just like you would do with a mathematical equation), and we are left with our summary equation:

`NaOH(aq) + CO_2 -> NaHCO_3(aq)`