A \( \text{H}_2\text{CO}_3 + \text{H}_2\text{O} = \text{H}_3\text{O}^+ + \text{HCO}_3^- \)
B \( \text{CO}_2 + \text{H}_2\text{O} = 2\text{H}^+ + \text{CO}_3^{2-} \)
C \( \text{HCO}_3^- = \text{H}^+ + \text{CO}_3^{2-} \)
D \( \text{H}_2\text{CO}_3 = \text{H}^+ + \text{HCO}_3^- \)
E \( \text{CH}_3\text{COOH} = \text{H}^+ + \text{CH}_3\text{COO}^- \)