Because the taste of foods is better with salt and sodium is absolutely necessary for the organisms.
The only reason that salt would be good to add to eggs would be flavor.
Yes, you could because if you cook it will turn into salt.
Most salt is kosher by default unless additives such as flavourings are added, at that point the salt would have to be certified kosher. 'Kosher salt' refers to a large grain salt that is used during the process of kashering meat. Iodized salt is kosher.
Since salt is an electrolyte, yes, it does cook faster, but it's not that much of a difference.
chicken tenders
Don't cook it with salt.
it gets hot.
you don't
cook
Yes, it is recommended to cook salt pork before adding it to beans to enhance its flavor and texture.
yes the salt raises the temperature to boil faster
Salt adds savour and salt (in small amounts) is required as part of human nutrition.