Question

compound boiling point (k)
nacl 1,738
pcl3 349
co2 195
libr 1,538
cao 3,120
based on the data, how do boiling points differ between ionic and covalent compounds?
boiling points for ionic compounds are lower than boiling points for covalent compounds.
boiling points for ionic compounds are higher than boiling points for covalent compounds.

Explanation:

Ionic compounds have strong electrostatic forces between ions, requiring more energy to break for boiling. Covalent compounds have weaker intermolecular forces. Analyzing the data, NaCl, LiBr, CaO (ionic) have high boiling - points compared to PCl₃ and CO₂ (covalent).

Answer:

Boiling points for ionic compounds are higher than boiling points for covalent compounds.