Question

question 10 in the equation h2co3 + naoh → nahco3 + h2o, what is h2co3? a an acid. b a buffer. c a base. d a salt.

Explanation:

$H_2CO_3$ (carbonic acid) is an acid. In the given chemical equation, it donates a proton. According to the Arrhenius definition, an acid is a substance that donates protons ($H^+$) in an aqueous solution.

Answer:

A. An acid