Write equations for the dissolution of the calcium carbonate...

Write equations for the dissolution of the calcium carbonate buildup in a toilet bowl by each of the following toilet bowl cleaners.
a. hydrochloric acid
b. sodium bisulfate
c. citric acid $\left(\mathrm{HC}_{6} \mathrm{H}_{7} \mathrm{O}_{7}\right)$

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Key Concepts

Reaction Stoichiometry

Stoichiometry involves the quantitative relationship between reactants and products in a chemical reaction. In the context of acid–carbonate reactions, it is used to determine the exact amounts of acid required and the products formed, ensuring that the chemical equations are balanced. This concept is fundamental for accurately predicting the outcome of dissolution processes in cleaning applications.

Acid Strength and Reactivity

Acid strength refers to an acid's ability to donate protons, which directly affects its reactivity. Strong acids, such as hydrochloric acid, donate protons completely and react rapidly with carbonates, while weaker acids, including many organic acids, may react less completely or require different stoichiometric ratios. This concept is essential for understanding how various acidic cleaners dissolve carbonate buildups.

Acid?Carbonate Reaction

This concept involves the chemical reaction between an acid and a carbonate compound, where the acid donates protons to the carbonate ion. The reaction typically yields a salt, water, and carbon dioxide gas. It is a common acid–base neutralization reaction that explains how mineral deposits, like calcium carbonate, can be dissolved or removed.

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