when an old building is to be torn down, mr. phams company removes the bricks, cleans off the mortar from…

when an old building is to be torn down, mr. phams company removes the bricks, cleans off the mortar from the bricks, and then sells the bricks to companies that restore historic buildings. which compound is mr. phams company most likely to use in its work?\nhydrochloric acid\nnitric acid\nsodium hydroxide\nlithium hydroxide
Answer
Brief Explanations:
Mortar is mainly composed of calcium - based compounds. Hydrochloric acid is a common acid used to dissolve and clean off calcium - containing residues like mortar from bricks. It can react with calcium compounds in mortar to form soluble salts. Nitric acid is more reactive and corrosive and may damage the bricks. Sodium hydroxide and lithium hydroxide are bases and are not effective in removing mortar which is basic - reacting with bases won't dissolve it effectively.
Answer:
hydrochloric acid