Steps:
Prepare the eggshells:
Start by cracking the eggshells into small pieces. You can crush them by hand or use a pestle to break them into finer pieces. You can also use a blender to turn them into powder, but that’s not necessary.
Fill a container with Coca-Cola:
Pour about 500 ml of Coca-Cola into a large glass or small bowl. This will be the base of your experiment.
Add the eggshells:
Gradually add the eggshell pieces to the Coca-Cola. You should immediately notice a chemical reaction: the drink will start to bubble and form small bubbles around the eggshells.
Add liquid detergent:
Add a few drops of liquid detergent to the mixture. You should see an increase in effervescence. The detergent reacts with the acid in the Coca-Cola and the minerals in the eggshell, causing a fascinating chemical reaction.
Add warm water:
Next, add some warm water (not boiling, but at a high temperature). This speeds up the chemical reaction and causes the eggshells to dissolve more quickly.
Incredible Result:
After a few minutes, you’ll notice that the eggshells begin to dissolve in the Coca-Cola, leaving a whitish residue at the bottom of the container. This is due to the reaction between the phosphoric acid in the Coca-Cola and the minerals in the eggshells, mainly calcium carbonate.
This experiment dramatically demonstrates the corrosive effect of acids on mineral substances like calcium. You’ll also notice that the drink becomes cloudier, and the water will create a kind of white foam on the surface, similar to soap reacting with particles.
Conclusion:
This mixture not only brings out interesting chemical reactions, but it also serves as an example of how acids in carbonated drinks like Coca-Cola can interact with natural substances like eggshells. It’s a fun way to visualize how acids can affect mineral elements in our food.
Note: This experiment should not be ingested, as the chemical reaction and the ingredients used may not be safe to consume directly. The goal is purely experimental and visual.
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