The equation ZnCO3 + HCl -> ZnCl2 + CO2 + H2O

1. Detailed information about the equation ZnCO₃ + HCl -> ZnCl₂ + CO₂ + H₂O

This equation describes the acid-base reaction between hydrochloric acid (HCl) and zinc carbonate (ZnCO₃). When these substances react with each other, they create zinc chloride (ZnCl₂), carbon dioxide (CO₂), and water (H₂O).

2. Reaction Conditions

In order for the reaction to take place, there needs to be enough hydrochloric acid to fully react with zinc carbonate. Additionally, the temperature also needs to be controlled, because if it’s too high, it could alter the reaction rate.

3. Reaction Process

When hydrochloric acid (HCl) comes into contact with zinc carbonate (ZnCO₃), it reacts to produce zinc chloride (ZnCl₂), carbon dioxide (CO₂), and water (H₂O). This reaction can be described in the following steps:

• Hydrochloric acid (HCl) dissociates into H+ and Cl- ions.
• ZnCO₃ separates into Zn₂+ and CO₃ 2- ions.
• The H+ ions from the hydrochloric acid combine with the CO₃ 2- ions from zinc carbonate to create water (H₂O) and carbon dioxide gas (CO₂).
• The Zn₂+ ions combine with Cl- ions to create zinc chloride (ZnCl₂).

4. Phenomena that occur

When zinc carbonate (ZnCO₃) reacts with hydrochloric acid (HCl), the first product to appear is gas bubbles, which is carbon dioxide (CO₂). The observable phenomenon is the effervescence of carbon dioxide gas when hydrochloric acid is added to the zinc carbonate sample.