What happens when nitric acid is added to egg shell?

Question

Answer

** Egg shells are made of calcium carbonate. When nitric acid is added, calcium carbonate reacts with nitric acid to form calcium nitrate, carbondioxide and water.

** CaCO3 (s) + 2HNO3 (aq) -----> Ca(NO3)2 (aq) + CO2 (g) + H2O (l)

Answer

It releases CO2 gas when they (Egg shell) reacts with Nitric acid as the egg shell contains CaCO3 (Calcium Carbonate).

CaCO3 + 2HNO3 → Ca(NO3)2 + H2O + CO2↑

You can observe that when the Egg shell (CaCO3) reacts with Nitric acid (HNO3) it gives Calcium Nitrates, Water along with the releasing of CO2 gas in the product side of the chemical equation.

Answer

An eggshell is basically CaCO3, so the reaction is:

CaCO3 + 2HNO3(a) = Ca(NO3)2 + CO2(g) + H2O(l)

Change in Free Energy: ΔG(20C) = -39.3kJ (negative, so the reaction runs)

Change in Enthalpy: ΔH(20C) = -31.3kJ (negative, so the reaction is exothermic)

Answer

Egg shell is made of calcium carbonate... We know that when 'CALCIUM CARBONATE' reacts with nitric acid,,, it gives CARBON DIOXIDE, calcium nitrate and water...

Same reaction happens when nitric acid is poured over egg shell...

Answer

Effect of Nitric Acid on Egg Shells

Egg shells are primarily composed of calcium carbonate, a basic compound, that is vulnerable to acidic substances. Nitric acid is a strong acid that can react with egg shells to form new compounds.

Chemical Reaction

The chemical reaction that occurs when nitric acid is added to egg shells is:

CaCO₃ + 2HNO₃ → Ca(NO₃)₂ + CO₂ + H₂O

In this reaction, calcium carbonate reacts with nitric acid to form calcium nitrate, carbon dioxide, and water.

Observation

When nitric acid is added to egg shells, the following observations can be made:

The egg shell dissolves and bubbles are produced due to the release of carbon dioxide gas.

The solution turns into a yellowish color due to the formation of calcium nitrate.

Heat is released due to the exothermic nature of the reaction.

Conclusion

In conclusion, when nitric acid is added to egg shells, a chemical reaction takes place, resulting in the dissolution of the egg shell and the formation of calcium nitrate, carbon dioxide, and water. This reaction is a classic example of an acid-base reaction that occurs when an acid reacts with a base or basic material.

Answer

CaCO3 + HNO3 ----) CaNO3 +CO2 +H2O

Answer

The egg shells are made of calcium carbonate. when nitric acid is added calcium carbonate react with nitric acid to form calcium nitrate, carbon dioxide and water.

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