Yes, Benzoic acid is a weak acid (pKa ~ 4.2) that will dissolve in weak base such as sodium bicarbonate (pKa ~ 6.4)
No. Sort of. Sodium hydroxide and bicarbonate are both solids and without water cannot dissolve sucrose. Sucrose is not terribly reactive to alkali, least of all bicarbonate. Aqueous solutions of...
Yes. all sodium compounds are soluble in water.
Acetic acid
react to form sodium acetate, water and carbon dioxide gas