1) Intermolecular Forces a) attractive forces that exist between molecules b) forces outside c) cause random motion d) form spheres 2) what is thermal enegry a) the energy you give off when sweating b) energy associated with temperature-dependent random movement of atoms and molecules c) the air from fire d) can make liquid e) affect intermolecular forces creating a sample to be any phase 3) how are the molecules arranged in a gas?  a) separated by large distances b) separated by small distances  c) closely packed together 4) how are the molecules arranged in a solid? a) separated by small distances b) closely packed together c) separated by large distances 5) Molecular Solids and Liquids without intermolecular forces would be ____ a) nothing b) still water and liquid c) gaseous 6) Why are certain objects able to float on surface of a liquid?  a) viscosity b) surface tension c) density d) water repels objects intially 7) What is surface tension similar to? a) a skin on the surface of liquid that resists penetration b) a bubble on the surface of liquid that resists penetration c) a nail on the surface of liquid that resists penetration 8) Why are surface molecules less stable a) interact with more molecules than interior b) interact with fewer molecules than interior 9) viscosity ?  a) resistance of a liquid to flow due to intermolecular forces b) thickness of a substancee c) liquid thinned by intermolecular forces 10) where is viscosity greatest? a) less intermolecular forces, more movement b) more intermolecular forces, less movement  c) no intermolecular forces d) in solids e) in gases 11) strong intermolecular forces have a) high melting and boiling points b) low melting and boiling points 12) strong intermolecular forces create a) liquids and solids b) gases 13) gases have a) low melting points b) high melting points c) high boiling points d) low boiling points 14) what force is present in all molecules and atoms a) dipole-dipole b) dispersion c) hydrogen bonding d) ion-dipole  15) dipole- dipole forces exist in ____ a) nonpolar molecules b) some polar molecules c) ionic molecules d) all polar molecules 16) what is a dipole  a) separation of charge from unequal protons  b) separation of charge from unequal electrons c) equal charge 17) T or F : the positive end of one permanent dipole is attracted to the negative end of another a) False b) True 18) Hydrogen bonds exist between a) Cl, F, N b) I, Ne, F c) O, N, F d) hydrogen only e) C,Ni,P,S 19) T or F: Hydrogen bonding is weaker than dipole-dipole forces a) true b) false 20) are intermolecular forces the same as chemical bonds? a) No, they are stronger b) No, they are wekaer

Intermolecular Forces Vocab

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