Any reaction occur.
The eggshell is porous.
Technically salt does not react with water. It will dissolve in water which is not the same thing as causing a chemical reaction. Calcium by itself does not react with salt water -- it is dissolved into the water and is a crucial element of life for many salt-water species. Some compounds containing calcium may react with (or in) salt water.
Salt doesn't react with water.
it does not react in fresh water
Magnesium. I believe Magnesium does not react to fresh water but salt water is very corrosive and will disolve the metal.
yes acid and base react with each other to form salt and water. for example, NaOH + HCl --------> NaCl + H2O
salt and water
Salted water doesn't react with oxygen.
Yes, that is called a neutralization reaction.
salt and water. this is the process of neutralization (acid + base = salt + water)
Insoluble metal oxide + strong acid ---> salt + water
salt and water