Questions: HCl + CaCO3 → CaCl2 + H2O + CO2

Transcript text: $\mathrm{HCl}+\mathrm{CaCO}_{3} \rightarrow \mathrm{CaCl}_{2}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}$

Solution

Solution Steps

Step 1: Identify the Type of Reaction

The given chemical equation represents a reaction between hydrochloric acid (HCl) and calcium carbonate (CaCO$_3$). This is a typical acid-carbonate reaction, which results in the formation of a salt (CaCl$_2$), water (H$_2$O), and carbon dioxide (CO$_2$).

Step 2: Write the Balanced Chemical Equation

The chemical equation provided is already balanced. Each element has the same number of atoms on both sides of the equation:

H: 2 atoms on both sides
Cl: 2 atoms on both sides
Ca: 1 atom on both sides
C: 1 atom on both sides
O: 3 atoms on both sides

Step 3: Summarize the Reaction

The reaction can be summarized as follows: When hydrochloric acid reacts with calcium carbonate, it produces calcium chloride, water, and carbon dioxide gas. This is a common reaction used in various applications, such as in antacid tablets and in the production of carbon dioxide in laboratories.

Final Answer

The balanced chemical equation for the reaction is: \[ \boxed{\mathrm{HCl} + \mathrm{CaCO}_{3} \rightarrow \mathrm{CaCl}_{2} + \mathrm{H}_{2}\mathrm{O} + \mathrm{CO}_{2}} \]

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