1. These are attractions that occur between molecules. _______________2. These forces are exist between an ion and a dipole molecule. _______________3. What happened to a positive ion in an ion-dipole molecule? _______________4. H2O is an example of ( polar, non-polar). _______________5. These are attractive forces that occur between polar molecules. _______________6. It is a special type of dipole-dipole force between polar molecules having ann H atom covalently bonded to a highly electronegative atom with lone electron pairs. _______________7. It prevents the water from evaporating quickly into the atmosphere. _______________8. It is present in all molecules, the only force present bin non polar molecules. _______________9. How dispersion force formed? _______________10. What is the other term for temporary dipole? _______________11. It is a phenomenon caused by cohesive forces between molecules allowing liquids to create a thin film on their surface. _______________12. It is the temperature at which the vapor pressure of the liquid is equal to the applied pressure on the liquid. _______________13. It is a measure of the tendency of a material to change into the gaseous or vapor state. _______________14. It is the resistance of liquid to flow. _______________15. It is the temperature at which a substance begins to change from solid to liquid.