Molecular solidsâ Made up of atoms or molecules held together by London dispersion forces, dipole-dipole forces, or hydrogen bonds. Characterized by low melting points and flexibility and are poor conductors. An example of a molecular solid is sucrose.
There are two main problems when it comes to hard-boiled eggs: green-gray yolks and shells that just wonât peel off. Make hard-boiled eggs headache-free by following this easy method. First, place the cold eggs in a single layer in a pan with enough cold water to cover them by about 1 inch. Then, place the pan on the stove over high heat. Shutterstock. As soon as the water comes to a boil turn the heat off, cover the pan, and remove it from the heat. Allow the eggs to sit in the water until they are cooked; about 9 minutes for a medium egg, 12 minutes for a large egg, and 15 minutes for an extra-large egg.
If you need easy-to-peel eggs and you have fresh eggs, you might want to try steaming the eggs for 15 minutes. Pour an inch of water into a pot and insert a steamer basket.Bring to a boil. Place the eggs in the steamer basket, cover and steam for 15 minutes (more or less, check!).f you have the type of stove burner that doesn't retain any heat when turned off, you might want to lower the temp to low, simmer for a minute, and then turn it off. Depending on how cooked you like your hard boiled eggs, the eggs should be done perfectly in 10-12 minutes.