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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 |