well,egg shells are very high in a substance called CaCO3, otherwise known as Calcium Carbonate which is also a good base. So, if it comes in contact with an acid, it neutralizes it to give,a calcium salt, Carbon dioxide and water.
Eggshells contain the calcium carbonate, which is a base. It is the same substance found in limestone. The carbonate (CO32-) ion reacts with acids to form the bicarbonate ion (HCO3-), or carbonic...
A buffer is used to neutralize acids and bases. For an acid a basic buffer would be used and to neutralize a base an acidic buffer would be used. For example when neutralizing hydrochloric acid (HCl)...
acidic acid is the nucleic level found on sodas or cleaning products and do forth. its all acidic but the higher the acidic level is ITS LESS ACIDIC then lower number.