Under what conditions will a precipitate form when solutions of silver nitrate and sodium chloride are mixed?

• A. A precipitate will form if silver chloride is insoluble in water.
• B. A precipitate will form if the reaction is endothermic.
• C. A precipitate will form if sodium nitrate is insoluble.
• D. A precipitate will form if both reactants are soluble.

Answer: (A)