Final answer:
The conjugate acids are formed by adding a proton to each base: HPO42- becomes H2PO4-, BrO3- becomes HBrO3, and HCO3- becomes H2CO3.
Step-by-step explanation:
The question asks to write the formula for the conjugate acid of each given base. In Brønsted-Lowry acid-base theory, the conjugate acid of a base is formed when the base gains a proton (H+). The bases given are HPO42-, BrO3-, and HCO3-.
- For HPO42-, the conjugate acid is H2PO4-.
- For BrO3-, the conjugate acid is HBrO3.
- For HCO3-, the conjugate acid is H2CO3.
To summarize, we add a proton to each base to get its conjugate acid, leading to the formulas mentioned above.