Final answer:
In the reaction provided, HCl and H₂SO₃ are the species acting as acids. HCl is a strong acid that dissociates to form H+ ions, and H₂SO₃ can donate a proton as per the Brønsted-Lowry definition. The correct answer is option: A) H₂SO₃ and C) HCl.
Step-by-step explanation:
In the given reaction, HCO₃Na(aq) + HCl(aq) ⇌ NaCl(aq) + H₂SO₃ (aq), we need to identify the species acting as acids. An acid, according to the Brønsted-Lowry definition, is a substance that donates a proton (H+).
In this reaction, HCl is a strong acid that dissociates completely in water to form H+ and Cl⁻ ions. Considering the products and other reactants, H₂SO₃ can also behave as a Brønsted-Lowry acid as it has the potential to donate a proton.
However, HCO₃-Na does not behave as an acid in this context; it is essentially a salt, and Cl⁻ as a product, is a conjugate base and not an acid. Therefore, the species acting as acids in the given reaction are HCl and H₂SO₃.