Answer
$K_{2}CO_{3}(aq)+ Pb(NO_{3})_{2}(aq)\ -->\ PbCO_{3}(s)+ 2KNO_{3}(aq)$
Work Step by Step
$ PbCO_{3}$ is not soluble in water so a precipitation reaction occurs. Add a two to the $KNO_{3}$ to balance the $K^{+}$ and $NO_{3}^{-}$.
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.