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Matter
College Chemistry week 1
| Question | Answer |
|---|---|
| Organic | Study of structure, properties, and reactions of compounds containing carbon |
| Inorganic | Study of structure, properties, and reactions of all other compounds, often associated with metals |
| Physical | The principles of physics involved in chemical reactions, includes computational and theoretical chemistry |
| Analytical | Study of the separation, identification, and quantification of chemicals, often involves instrumentation |
| Biochemistry | The study of chemicals in living organisms |
| What is matter? | anything that takes up space and can be weighed |
| Solid Matter | Atoms/molecules vibrate but do not move past one another, which results in solids having a fixed volume and shape |
| Crystalline solid | Atoms or molecules are in repeating patterns |
| Amorphous Solid | Atoms or molecules do not have any recognizable repeating pattern |
| Liquid Matter | atoms or molecules pack about as closely as they do in solid matter, but they are free to move relative to each other. |
| Gaseous Matter | atoms or molecules have a lot of space between them These qualities make gases compressible |
| solid to liquid | melting (fusion) |
| liquid to solid | freezing |
| solid to gas | sublimation |
| gas to solid | Deposition |
| liquid to gas | Boiling (Vaporization) |
| gas to liquid | Condensation |
| Which best describes a molecule in a solid? | No translational molecular movement in space but they vibrate in place, large amounts of molecular interactions |
| diatomic elements | Hydrogen, H2; Oxygen, O2; Fluorine, F2; Bromine, Br2; Iodine, I2; Nitrogen, N2; and Chlorine, Cl2 (HOFBrINCl) |
| Physical Changes | Composition is unchanged, and the change can be undone using physical means |
| Chemical Changes | atoms rearrange to make new molecules |
| physical property | property that a substance displays without changing its composition Odor, taste, color, appearance, melting point, boiling point, and density |
| chemical property | property that a substance displays only by changing its composition via a chemical change (or chemical reaction) Chemical properties include corrosiveness, acidity, and toxicity |
| intensive property | a characteristic of a substance that does not change based on the amount of the substance present |
| extensive property | a physical characteristic of a substance that depends on the amount of matter present |
Created by:
ashleylindsay24
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