Final answer:
The first equation represents the reaction between the carbonate ion and water as a Brønsted base. The carbon-containing product from the first reaction can act as a Brønsted base with water as well. The carbon-containing product from the second reaction can decompose into carbon dioxide gas and water.
Step-by-step explanation:
Phases are optional in the balanced equations. The carbonate ion (CO₃²⁻) acts as a Brønsted base with water, and the balanced equation for this reaction is CO₃²⁻ + H₂O → HCO₃⁻ + OH⁻. The carbon-containing product from the first reaction acts as a Brønsted base with water, and the balanced equation for this reaction depends on the specific carbon-containing compound. For example, if the carbon-containing compound is CH₃COOH (acetic acid), the equation would be CH₃COOH + H₂O → CH₃COO⁻ + H₃O⁺. The carbon-containing product from the second reaction decomposes into carbon dioxide gas and water, and the balanced equation for this reaction depends on the specific carbon-containing compound. For example, if the carbon-containing compound is CH₃COOH (acetic acid), the equation would be CH₃COOH → CO₂ + H₂O.