Question

What happens to (a) the H+ ions, and (b) temperature of the solution, when an acid is neutralised?

Answer 1

Answer:

Explanation:

(a) The Hydrogen ions ($H^{+}$) reacts with the Hydroxide ions forming water($H_{2}O$).

  when the acid is neutralised, the H+ ions reacts with hydroxide ions (OH-) that leads to the formation of water(H20).

(b) As the most of the Neutralisation reactions are EXOTHERMIC (exceptional in some cases).

Therefore, the Temperature will be increasing during reaction and comes back to the normal stage after the reaction completes.

Answer 2

$H^+$ ion Concentration Decreases

Explanation:

When an acid is neutralized, then

(1) the concentration of ions decreases

(2) the temperature of solution increases

We know that,  

Neutralization is a chemical reaction in which acid and base react to form salt and water. Hydrogen ($H^+$) ions and hydroxide ($OH^-$ions) react with each other to form water. The strong acid and strong base neutralization have a pH value of 7.