# How to do acid base neutralization reactions work?

Dec 23, 2016

Acids are defined as proton donors and bases as proton acceptors. Neutralisation is when both are in equilibrium.

#### Explanation:

A proton is nothing more than an ionized hydrogen atom ${H}^{+}$

Most common acids are characterized by the hydronium ion, which looks like ${H}_{3} {O}^{+}$. This can donate a proton and turn into water:

${H}_{3} {O}^{+} \to {H}_{2} O + {H}^{+}$

A common base has the hydroxide ion $O {H}^{-}$

And these combine: ${H}_{3} {O}^{+} + O {H}^{-} \to 2 {H}_{2} O$
Or more commonly: ${H}^{+} + O {H}^{-} \to {H}_{2} O$

There are many more acid-base reactions, like between acid and metal oxide, or between base and non-metal oxide, but the above is the one that is most usually called an acid-base reaction.