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Chemistry Vocab #9
chem vocab #201-225
| Question | Answer |
|---|---|
| Hydride | A compound of hydrogen and at least one other element of lower electronegativity. |
| Hydrocarbon | A compound of hydrogen and carbon. |
| Hydrogen, Aromatic | A hydrocarbon which has alternating single and double covalent bonds in six-membered carbon rings. |
| Hydrogen Bond | A weak chemical bond between a hydrogen atom in one polar molecule and the electronegative atom in a second polar molecule of the same substance. |
| Hydrogenation | The addition of hydrogen to a material. |
| Hydrolysis | An acid-base reaction between water and an ion of a dissolved salt. |
| Hydrolysis, Anion | Reaction in which a negatively charged ion base accepts a proton from a water molecule, increasing the OH- ion concentration of the solution. |
| Hydrolysis, Cation | Reaction in which a positively charged ion acid donates a proton to a water molecule, increasing the H^3O^+ ion concentration of the solution. |
| Hydronium Ion | A hydrated proton of the H^3O^+ ion. |
| Hydrosol | A suspensoid in which water is the dispersing medium. |
| Hydrous Oxide | A hydrated metal oxide. |
| Hygroscopic | Absorbing and retaining moisture from the atmosphere. |
| Hypothesis | A possible or tentative explanation. |
| Ice Point | 0 degrees Celsius. |
| Immiscible | Not capable of being mixed. |
| Indicator | A substance which changes in color on the passage from acidity to alkalinity, or the reverse. |
| Inertia | Resistance of matter to change in position or motion. |
| Ingot | A molded block of metal. |
| Inhibitor | A substance which hinders catalytic action. |
| Inorganic | Pertaining to material which are not hydrocarbons or their derivatives. |
| Insoluble | Not capable of being dissolved. |
| Internal Phase | The dispersed particles of a colloidal suspension. |
| Ion | An atom or group of atoms with an unbalanced electrostatic charge. |
| Ion-Exchange Resin | A reaction which can exchange hydronium ions for positive ions; and exchange hydroxide ions for negative ions. |
| Ion, Spectator | An ion in a reaction system which takes no part in the chemical action. |