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.
Many people feel that eggs should not be hard boiled, only hard cooked. Put the eggs in hot water for 5 minutes while you bring a pot of water to a simmer. Put the eggs in the simmering water and let them simmer for 20 minutes. If you add a splash of vinegar to the water, it will make the eggs easier to peel.ut your eggs in a pan, add cold water to cover by 1 inch plus 1 Tb of vinegar or salt (this will keep the egg from running if the shell cracks a bit during the process). bring to a boil, boil for 10 minutes. remove the pan from the heat, let rest for 5 minutes. the eggs will be perfectly hard boiled.