Question

Как диссоциирует: Ca(OH)2 + H2CO3--> CaCO3 + 2H2O ?

Answer 1

H2CO3 + Ca(OH)2 = CaCO3↓ + 2H2O

Answer 2

Dissociation of Ca(OH)2 and H2CO3

When Ca(OH)2 and H2CO3 dissociate, they break apart into their respective ions or molecules. Let's break down the dissociation process step by step:

1. Ca(OH)2 dissociation: - Ca(OH)2 is a strong base and it dissociates completely in water. - It breaks down into one calcium ion (Ca^2+) and two hydroxide ions (OH^-). - The dissociation reaction can be represented as: ``` Ca(OH)2 → Ca^2+ + 2OH^- ```

2. H2CO3 dissociation: - H2CO3 is a weak acid and it partially dissociates in water. - It breaks down into one hydrogen ion (H+) and one bicarbonate ion (HCO3^-). - The dissociation reaction can be represented as: ``` H2CO3 ⇌ H+ + HCO3^- ```

Overall Reaction

Now, let's combine the dissociation reactions of Ca(OH)2 and H2CO3 to form the overall reaction:

Ca(OH)2 + H2CO3 → Ca^2+ + 2OH^- + H+ + HCO3^-

The products of the reaction are calcium ions (Ca^2+), hydroxide ions (OH^-), hydrogen ions (H+), and bicarbonate ions (HCO3^-).

The overall reaction can also be simplified as:

Ca(OH)2 + H2CO3 → CaCO3 + 2H2O

In this simplified form, the products are calcium carbonate (CaCO3) and water (H2O).

Please note that the reaction may not proceed to completion in both directions, as the dissociation of H2CO3 is a reversible reaction. The extent of dissociation depends on factors such as concentration, temperature, and pH.

I hope this explanation helps! Let me know if you have any further questions.