[kenny1999]

very confused even after a long time of google-ing but I can't reach a direct answer to my questions with clear and understandable explanation! please *delete me*

my question is

1. what is the definition of neutralization? some only says, " acid and base reaction" ; and some says "formation of salt and water ONLY"

I don't really understand, sorry man!

2. is  calcium / sodium carbonate ( and also hydrogencarbonate ) a base?
how about their common reaction...?? carbonate / hydrogencarbonate + acid => carbon dioxide + water + salt.. are they classified as neutralization???


I hope you can help if you really know about chemistry, sorry to say that because I can't make a mistake on this! THank you!!!!

[Borek]

Neutralization can be defined in many ways, no wonder you are seeing many definitions. As long as we are in water they will all have one part in common:

H⁺ + OH^- -> H₂O

This is a net ionic reaction. It is accompanied by the production of salt, but in most cases ions involved don't change - they were freely floating in the solution before reaction, they freely float in the solution after.

Carbonate is a Bronsted base:

CO₃^2- + H₂O <-> OH^- + HCO₃^-

Note: when you delve deeper, details become a little bit convoluted, so I am just sticking to the top-level basics.