Question

When HCl is dissolved in qater, it can conduct electricity. Write chemical equation for the for the reaction that takes places when NaOH is added in the solution.?

Answer 1

`HCl(aq) + NaOH(aq) -> H_2O(l) + NaCl(aq)`

Explanation:

This would be a neutralisation reaction.
Neutralisation reactions, involving a strong acid and a strong base, typically produce water and a salt.

This is also true in our case!

`HCl` and `NaOH` are strong acids and bases respectively, so when they are placed into an aqueous solution, they basically completely dissociate into their constituent ions: `H^+` and `Cl^-` from `HCl`, and `Na^+` and `OH^_` from `NaOH`.

As this occurs, the `H^+` from `HCl` and the `OH^-` from `NaOH` would come together to produce `H_2O`.

So, our chemical reaction would be:

`HCl(aq) + NaOH(aq) -> H_2O(l) + Na^(+)(aq) + Cl^(-)(aq)`

Which is effectively the same thing as:

`HCl(aq) + NaOH(aq) -> H_2O(l) + NaCl(aq)`