Which piece of equipment enables the safe heating of samples without the risk of splashing?

The round bottom flask is specifically designed for heating liquids in a laboratory setting. Its shape allows for even heat distribution and minimizes the risk of splashing or spilling when the contents are heated. The rounded bottom facilitates smoother heating and minimizes the formation of hot spots, which can lead to sudden boiling or splattering. Additionally, the round bottom flask can be securely held in place with clamps, making it safer to handle during heating processes. This design is particularly advantageous when performing reactions that require gentle heating, thereby enhancing safety in the laboratory environment.