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Chemistry Exam 2 faq
| Question | Answer |
|---|---|
| Polymorphous | having many variations in form or style; allotropic substances |
| Lattice Energy | the energy required to pull a crystal apart |
| Crystalline Solid | has a definite pattern to its structure when broken into pieces they have similar angles and edges |
| Crystal Lattice | a crystalline solid's 3D pattern |
| Unit Cell | the smallest number of ions to make a basic shape |
| Formula Unit | the simplest whole number of ratio of atoms in an ionic compound |
| Allotrope | a variant of a substance consisting of one atom |
| Amorphous Solid | does not have a definite pattern to their structure, sometimes thought of as supercooled liquids |
| Henry's Law | shows a direct relationship between the solubility of a gas and the particle pressure of that gas |
| Why at higher altitudes it takes longer to boil water? | The vapor pressure dosn't have to be as great. |
| Solvation | An exothermic reaction (releases energy) process where the solvent molecules surround the solute particles, creating a more stable, lower-energy situation |
| The maximum temperature that a gas can be converted into a liquid | Critical Temperature |
| Dissociation | an endothermic (absorbs energy) process where the intermolecular forces attracting respective solute and solvent particles are overcome. |
| Electrolyte | any substance that contains free ions causing it to be electrically conductive |
| Efflorescence | the loss of water by dehydration |
| Electrolysis | a method of using a direct electric current to drive an otherwise non-spontaneous reaction |
| Desiccant | a substance that induces or sustains a state of dryness |
| Basic anhydride | reacts with water to form a base |
| Deliquescence | the process where a substance absorbs moisture from the air until it dissolves in the absorbed water and forms a solution. |
| Solubility of a gas is affected more by... | pressure |
| If the solvation energy is greater than the dissociation energy then solution will... | heat up |
| If the dissociation energy is greater than the solvation energy then solution will... | cool down |
| Raoult's Law | Vapor pressure of a solvent is proportional to the number of dissolved solute particles |
| Colloid | a heterogeneous mixture between a solvent and an insoluble solute-stays suspended like smoke in the air |
Created by:
wendyk44
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