1-hexene is C=C-C-C-C-C, 1-hexyne is the same except a triple bond instead of the double bond.

n-hexane is C-C-C-C-C-C

*Note: All of the carbons above have enough -H to have four bonds around each carbon
Its something called a colligative property.  The greater the number of non volatile particles, the greater change in the melting (or boiling) point of a solution.  Sugar is a molecule, so it will dissolve as one particle.  Salt is an ionic compound so it will dissolve into Na+ and Cl-, or 2 particles.  Particle to particle, salt will lower … Read more