... solids. (According to the kinetic-molecular theory, the state of a substance at room temp depends on the strength of the attractions between its particles.) Intramolecular forces: Covalent bonds exist within the molecule, holding the atoms together in a specific shape. Intermolecular forces include: Dispersion forces: Force of attraction between induced dipole. Temporary (- +). Present ... in all molecular substances. Dipole-dipole forces: Some molecules have a permanent (- +) charges. Hydrogen bonds: Stronger bonds ( hydrogen, florine, oxygen, or nitrogen) Large particle results in a s...

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