Hydrogen trioxocarbonate refers to the chemical compound known as bicarbonate or hydrogen carbonate, which has the formula \( \text{HCO}_3^{-} \).
On the other hand, trioxocarbonate(IV) (or simply carbonate) refers to carbonate anion, which has the formula \( \text{CO}_3^{2-} \).
So, the equations for both are:
- Hydrogen trioxocarbonate (bicarbonate): \(\text{HCO}_3^{-}\)
- Trioxocarbonate(IV) (carbonate): \(\text{CO}_3^{2-}\)