Acid, vinegar or acetic acid that can dissolve the calcium. Eggshell are calcium is the main element that makes the hard eggshell when it melts disappear. Eggshell so soft.
Acetic acid or acetic acid. Which can dissolve calcium Eggshell calcium is the main component that makes a hard shell. When disintegrated So soft eggshell
Acetic acid or acetic acid Which can dissolve the calcium. Eggshell calcium is the main component that makes the shell solid when it is melted, the shell egg is soft.