what is the symbol and valency of sodium bycarbonate
The chemical formula for sodium bicarbonate is NaHCO3. As we know that valency is the combining power or the combining capacity of an atom or an element, the number of atoms of one element which combine with one atom of another element is decided by the valency of that element.
As one sodium cation (Na+) combines with one bicarbonate ion (HCO3-), the valency of both Na+ and (HCO3-) ion is 1 in sodium bicarbonate NaHCO3.