2CH3COOH + CaCO3 ———> Ca(CH3COO)2 + H2O + CO2
You can also observe that the egg gets large as it sits in the vinegar. Because of Osmosis. In some of the water in the vinegar solution and it travelled through egg membrane and it equalizes the concentration of water on both the sides of the membrane . So the water flow through semipermeable membrane is called Osmosis.
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