Question

Написать молекулярню йонни уровня: CaCo3+HCl=

Answer 1

CaCO3 + 2HCl -> CaCl2 + CO2 + H2O
CaCO3 + 2H(+) + 2Cl(-) -> Ca(+2) + 2Cl(-) + CO2 + H2O
CaCO3 + 2H(+) -> Ca(+2) + CO2 + H2O

Answer 2

Molecular Level Equation: CaCO3 + HCl

The molecular level equation for the reaction between calcium carbonate (CaCO3) and hydrochloric acid (HCl) can be represented as follows:

CaCO3 + 2HCl → CaCl2 + H2O + CO2

In this reaction, calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water, and carbon dioxide.

Please note that the coefficients in front of the reactants and products represent the stoichiometric ratios, indicating the number of molecules or moles involved in the reaction.

Reaction Details:

1. Calcium Carbonate (CaCO3): - Molecular weight: 100.0869 g/mol - Melting point: 825 °C - Boiling point: 1339 °C 2. Hydrochloric Acid (HCl): - Molecular weight: 36.461 g/mol 3. Calcium Chloride (CaCl2): - Molecular weight: 110.98 g/mol 4. Water (H2O): - Molecular weight: 18.015 g/mol 5. Carbon Dioxide (CO2): - Molecular weight: 44.01 g/mol

Reaction Mechanism:

When calcium carbonate (CaCO3) reacts with hydrochloric acid (HCl), the following steps occur:

1. The acid dissociates in water, releasing hydrogen ions (H+) and chloride ions (Cl-):

HCl → H+ + Cl-

2. The hydrogen ions (H+) from the acid react with the carbonate ions (CO3^2-) from calcium carbonate, forming carbonic acid (H2CO3):

H+ + CO3^2- → H2CO3

3. Carbonic acid (H2CO3) is unstable and decomposes into water (H2O) and carbon dioxide (CO2):

H2CO3 → H2O + CO2

4. The calcium ions (Ca^2+) from calcium carbonate react with the chloride ions (Cl-) from hydrochloric acid, forming calcium chloride (CaCl2):

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Conclusion:

The reaction between calcium carbonate (CaCO3) and hydrochloric acid (HCl) results in the formation of calcium chloride (CaCl2), water (H2O), and carbon dioxide (CO2). This reaction is commonly used in various applications, such as in the production of carbon dioxide gas or in the neutralization of excess acid.

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