Answer
Please see the work below.
Work Step by Step
The required chemical equations are
a.$NaHCO_3+HC_2H_3O_2\rightarrow H_20+NaC_2H_3O_2$
b. $Ca(HCO_3)_2+Ca(OH)_2\rightarrow 2CaCO_3+2H_2O$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.