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Write a balanced equation for the reaction between potassium hydrogen carbonate and chlorous acid.

When potassium hydrogen carbonate (chemical formula: KHCO3), also known as potassium bicarbonate, reacts with chlorous acid (chemical formula: HClO2), the following reaction takes place:


`KHCO_3 + HClO_2 -> KClO_2 + H_2CO_3`


The products of this reaction are potassium chlorite and carbonic acid. A well balanced equation is one in which the number of atoms of each species is equal on both sides of the equation. For example, there is only 1 atom of potassium (K) on both the product and reactant side. Similarly, there are only 5 atoms of oxygen on both sides of the equation. In the same manner one can check out other species. The above equation is balanced.


Note that this equation represents a double-displacement reaction, since the cations (K+, H+) and anions (HCO3- and ClO2-) have exchanged their respective partners. 


Hope this helps. 

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