Which statement BEST describes the phase change of a 34.6 g sample of water vapor to liquid water? H2O(1)
H (g)
ΔΗ, = 2260 J/g
released of enemy

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.