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Chem w17-18
Study for Quize
| Question | Answer |
|---|---|
| The bonds holding ions together | Ionic Bonds (or intermolecular forces) |
| Melting/boiling point of ions are... | Very High |
| Ions are soluble in... | Polar Solvents |
| Ions are conductive in... | Liquid state or in a solution |
| The forces holding cations and mobile electrons bonded are... | Metallic bonds |
| The melting/boiling point of cations and mobile electrons are... | High |
| The solubility of cations and mobile electrons... | not soluble |
| The forces holding polar molecules together are... | Dispersion forces Dipole-Dipole and Hydrogen bonds possible |
| The melting/boiling point of polar molecules is... | Low |
| The solubility of polar molecules... | Usually in polar solvents |
| The forces holding nonpolar molecules together... | Dispersion forces |
| The melting/boiling point of nonpolar molecules... | Lowest |
| The solubility of nonpolar molecules... | only in nonpolar solvents |
| The conductivity of nonpolar molecules... | Not conductive 1 |
| The conductivity of polar molecues | Not conductive 2 |
| The conductivity of cations and mobile electrons | conductive in any state |
| Hydrogen Bond | Strongest of intermolecular forces, between a water molecule and another molecule |
| Dipole-Dipole Bond | Medium stregnt of the intermolecular forces, between polar molecules |
| Dispersion Bond | Weakest of the intermolecular forces, electrons move causing imbalances |
| Unit cell | the smallest number of ions to make a basic shape |
| Formula unit | The simplest whole number ratio of atoms in a crystal |
| Allotrophic | The property of some chemical elements to exist in two or more different forms |
| Dissociation | An endothermic reaction (absorbs energy)where the molecules are pulled apart creating ions |
| Solvation | An exothermic reactions (releasing energy)where the molecules are surrounded creating a more stable, low energy situation |
| Henry's Law | Shows a direct relationship between the solubility of a gas and the partial pressure of that gas |