Answer
$KHCO_{3}$
Work Step by Step
It is a white solid also known as Potassium bicarbonate, formed by the reaction of potassium carbonate with carbon dioxide and water.
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.