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Criado por Andrea Smith
mais de 9 anos atrás
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Questão | Responda |
Intermolecular Forces | Forces that exist between molecules |
Intramolecular Forces | Forces that exist within molecules |
Melting | Solid to liquid phase change |
Boiling/Vaporization | Liquid to Gas phase change |
Sublimation | Solid to gas phase change |
Freezing | Liquid to solid phase change |
Condensation | Gas to liquid phase change |
De-sublimation | Gas to solid phase change |
Molecular Solids | Solids held together by dispersion forces Likely to dissolve in most solvents |
Metallic Solids | Positive nuclei of metal atoms held together by valence electrons |
Network Solids | Solids held together by covalent bonds Not likely to dissolve in most solvents |
Ionic Solids | Held together by electrical forces between molecules |
Collodial Suspension | Molecules uniformly disperses throughout the medium Between solutions and mixtures Between different phases |
Miscibility | If a solute with dissolve in a solvent |
Solubility | How much a solute will dissolve in a solvent |
Saturation Point | Point where no more solute can be dissolved in the solvent |
Alloy Substitution | Replacement of one solid atom with another to maintain general lattice shape |
Alloy Interstitial Placement | Introduction of new solid atom distorts normal lattice structure |
Dynamic Equilibrium | Rate of gas escaping the liquid phase is equal to the rate of gas dissolving into the liquid phase In a closed system |
Surfactants | Hydrophobic tail and hydrophilic head Keep like phases near each other Reduce surface tension of a liquid |
Monolayers | One row of surfactants to separate phases |
Micelles | Surfactants form circle to enclose one phase from another |
Vesicles | Bilayer of surfactants |
Colligative Properties | Properties that change based on the amount of solute present |
Vapor Pressure Reduction | Number of available solvent molecules at the surface to escape to gas phase is reduced with the introduction of a solute |
Freezing Point Depression | Fewer solvent molecules available to change into solid phase because of introduction of solute |
Boiling Point Elevation | Fewer solvent molecules able to reach surface and change into gas phase because of introduction of solute |
Osmotic Pressure | Pressure applied to a solution to prevent the flow of solvent across a semi-permeable membrane |
Properties of Liquids | Surface tensions, capillary action, viscosity, vapor pressure |
Simple Cubic Unit Cell | Repeating unit form a 3D shape to represent the solid |
Body-Centred Cubic Cell | Repeating unit centred around a cell |
Face-Centred Cubic | Repeating unit centred around a cell with faces sticking out of the sides |
Ion-Dipole Forces | Between ion and permanent dipole eg, Ion dissolved in water |
Hydrogen Bonding Forces | Slightly polar hydrogen attracted to a lone pair eg, Water and ethanol |
Dipole-Dipole Forces | Mutual attraction of two dipoles eg, HCl & HCl |
Ion-Induced Dipole | Ion induces a dipole in another molecule then it is attracted to it eg, Ca2+ and O2 |
Dipole-Induced Dipole | Dipole induces a dipole in another molecule eg, HCl and Cl2 |
Dispersion Forces | Shifts of electron cloud density induce momentary attractions eg, CH4 &CH4 |
Intermolecular Forces - Strongest to Weakest | Ion-Dipole Hydrogen bonding Dipole-Dipole Ion-Induced Dipole Dipole-Induced Dipole Dispersion |
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