What distinguishes a flask from other glassware?

A flask is characterized by its conical shape with a narrow opening, which distinguishes it from other types of glassware. This design allows for easy mixing and swirling of solutions without the risk of spills, making it particularly useful in laboratory settings. The shape supports efficient heat distribution when substances are heated, as well as allows for better handling of reactions that may produce gases.

In contrast to other types of glassware, such as beakers which have a straight cylindrical design and are better suited for pouring or holding a specific volume of liquid, flasks provide better access for stirring tools and can accommodate the needs of various chemical reactions. This distinctive conical shape helps to minimize evaporation and allows for the addition of materials through its narrow neck, which gives it an advantage in various experimental scenarios.