The ups and downs of eggs, why do eggs sink first and then float

Experiment: Submerge one shelled egg in a large-diameter glass filled with water. When I let go of my hand, I found that the egg was slowly sinking to the bottom of the cup.

Remove the eggs and add salt to the water to make a salt solution with higher concentration. Then submerge the egg in the saline solution, and when you release your hand, the egg slowly floats.

Analysis: The heave and sinking of an object depends on the magnitude of the gravitational and buoyant forces exerted on it. The volume of an object immersed in a liquid is the volume of the liquid it distributes, and according to Archimedes' principle, the relationship between the density of an object and the density of a liquid can correspond to the relationship between gravity and buoyancy.

Because the density of the egg is slightly higher than that of clear water, when the egg is immersed in clear water, the gravity is greater than the buoyancy, so the egg will sink. When submerged in salt water, the egg will float as the brine is denser than the egg's density and the gravitational force is less than buoyancy.

People say that boiling eggs can be a bit of a use, and that spoiled eggs can float, so leave them for a few more days and let them spoil, and then they can float.

An egg, put it in a cup, add salt, the egg will float with the increase of salt, the principle: the density of water increases, and the density is greater than that of eggs.

Add water and dilute the brine concentration, the egg will sink, the principle: the density of water is reduced, and the density is smaller than that of eggs.

Put the egg into a cup of dilute hydrochloric acid, and the egg sinks (gravity) and the egg rises again after a while:

2HCl+CaCO3 (the main component of egg shell is calcium carbonate) CO2+CaCl2+H2O

The recoil force that generates carbon dioxide causes the egg to float.

At the end of the reaction, the egg will sink again.

Chemistry Experiments).

The egg floats on the surface of the water because the specific gravity of the salt water is greater than the specific gravity of the egg; Since the specific gravity of the clear water is less than that of the egg, it sinks to the bottom of the water. In other words: salt water is more buoyant than clean water.

I don't deny the above answers.

Eggs sink in standard water, and changing the density of the water can make the eggs float.

Causes: The density of eggs is greater than that of unsalted water, sinking; It is less dense than salted water and floats upward.

The egg sinks due to gravity; Calcium carbonate, the main component of the egg shell, reacts with acetic acid to form carbon dioxide, forming bubbles that adhere to the surface of the egg, and the buoyancy increases and floats.

The conditions for the egg to sink and float are determined by the contrast between the relative density of the water and the egg, if the average density of the water is large, the egg will float up, and if the density of the water is small, the egg will sink. Normally, eggs sink to the bottom of the water, but if salt is added to the water to increase the density of the water, the eggs will slowly float up under the action of buoyancy.

The reason why it floats first is because the egg itself still has cavities, and the density of the egg yolk and egg white is close to the density of water, but it is still slightly less than the density of water. When cooked, eggs are mostly made up of protein, which is denser than water.

This is because eggs are denser than unsalted water, sinking; It is less dense than salted water and floats.

The reason why the egg floats and sinks is that the density of the water is greater than the density of the egg, and the egg will float, and if the density of the egg is greater than the density of the water, the egg will sink.

The density of eggs is slightly greater than that of water, and when salt is added, the density of salt water slowly increases, and when it reaches a certain level, its density is greater than that of eggs. So the eggs floated.

Because the first to sink the egg, it. There is very little water and a lot of floating egg water.

Increase the density of the water, and the egg will slowly float up under the action of buoyancy.

If the density of the egg is less than the density of hydrogen water, the egg will sink, and the density of the egg is greater than that of water, then the egg will sink, and the density of the key water will be greater than that of the egg, and the egg will float.

Because salt also has weight, the eggs will float.

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