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Determining Boiling Points from Structure

Order these compounds from lowest to highest boiling point:

Hexane -1

Water -2

NaCl -3

Boiling point = intensive -> from chemical make up

Chemical makeup = structure and bond type

Hexane – $C_6H_4$

Water – $H_2O$

NaCl:

Na-Cl, this is a salt -> ions make it up -> ionic bonding

Stronger bonds require more energy to break