[kenny1999]

I think calcium carbonate is a base ( i am not sure , because I think it will accept hydrogen )
while acid is acid, so I think calcium carbonate + acid is a neutralization

on the other hand, some textbooks define that neutralization is a reaction that forms salt and water ONLY....


One of my fellow  colleagues said that it is not a neutralization because calcium carbonate does not form hydroxide ion to react with hydrogen ion...

While another colleague argued that since it (carbonate) reacts with hydrogen ion by accepting the hydrogen ion, and the acid is reacted / disappeared, the acidity decreases and pH increases, so there is no reason to say that it is not a neutralization"

I just feel very confused.....

[kenny1999]

could anyone help on this problem

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[DevaDevil]

I use calcium carbonate to clean up spills of concentrated acids in our lab. I would call that neutralization, wouldn't you?

But it is also more complicated as it generated carbon dioxide as well by the second equilibrium:

CO₃^2- + 2 H⁺ --> H₂CO₃ (neutralization)

H₂CO₃ <-->> H₂O + CO₂ (equilibrium)


and as for:

One of my fellow  colleagues said that it is not a neutralization because calcium carbonate does not form hydroxide ion to react with hydrogen ion...

I disagree strongly. Neutralization of does not need to be done through OH^-, it just needs to lower the concentration of H⁺

[aeacfm]

One of my fellow  colleagues said that it is not a neutralization because calcium carbonate does not form hydroxide ion to react with hydrogen ion...

i think hydroxide ion  could be formed according to :
CO3^-- (aq) +  H2O   HCO3^- +  OH^-

[Borek]

i think hydrogen could be formed according to :
CO3^-- (aq) +  H2O  HCO3^- +  OH^-

I don't see hydrogen formation here.

[aeacfm]

i think hydroxide ion  could be formed according to :
CO3^-- (aq) +  H2O   HCO3^- +  OH^-

I don't see hydrogen formation here.

edited