How Do You Balance the Reaction Between Nitric Acid and Calcium Carbonate?

[norrington]

Homework Statement

My questions pertain to #4b of the free response.

Question: Excess nitric acid is added to solid calcium carbonate. The question asks to predict a balanced equation for this reaction.

The Attempt at a Solution

what I wrote down was:

H+ + CO3 ----> H2O + CO2

which might be down the right road but isn't correct.

 

[chemisttree]

What about bicarbonate?

Show the calcium as well as nitrate for completeness.

 

[norrington]

woops

I should have included that the AP exam does not require that you show spectator ions, I realized shortly after posting that my confusion was only coming from not writing in the 2+ charge for the carbonate, so I think that what I have is generally correct.

 

[chemisttree]

The equation is not balanced.