Chemistry · Acids, Bases and Salts

Amit is a science teacher. During a demonstration in front of the class, he advised his students to always add acid to water slowly, rather than adding water to acid, while diluting it. What could be the reasons behind this advice? 1. If water is added to concentrated acid, the heat generated may cause the mixture to splash out and cause burns. 2. The addition of acid to water is a highly exothermic process, and adding acid slowly with constant stirring allows the heat to dissipate safely. 3. Adding water to acid will precipitate the acid out of the solution. Which of the statements given above are correct?