Which of the following items is a salt?(1 point) Responses antacid antacid sodium hydroxide sodium hydroxide carbonic acid carbonic acid calcium carbonate.

Answer 1

A salt is typically formed from the reaction of an acid and a base. In the list you provided, calcium carbonate is classified as a salt. It can be formed from the reaction of carbonic acid and calcium hydroxide.

The other items listed (antacid, sodium hydroxide, and carbonic acid) do not fall under the definition of a salt.