Term
|
Definition
| the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes |
|
|
Term
| Example of Law of Conservation |
|
Definition
| A cue ball hits an 8 ball on a pool table. The cue ball had kinetic energy that caused the 8 ball to go into motion. Before the 8 ball was struck it had potential energy. |
|
|
Term
| Chemical Reaction Illustration |
|
Definition
| Two hydrogen molecules combining with one oxygen molecule. |
|
|
Term
| Differences between states of matter |
|
Definition
| Solid has a fixed shape and volume. Liquid has a fixed volume but not fixed shape. Gas fits into a container of almost any size and shape. |
|
|
Term
| Examples of states of matter |
|
Definition
Solid: Rock
Liquid: Water
Gas: Oxygen |
|
|
Term
|
Definition
| May change the arrangement of matter in a sample, but not the structure of its molecules. |
|
|
Term
| Physical Property Examples |
|
Definition
|
|
Term
|
Definition
| Property or behavior of a substance when it undergoes a chemical change or reaction. |
|
|
Term
| Examples of Chemical Property |
|
Definition
| Toxicity, oxidation and flammability. |
|
|
Term
|
Definition
| A change from one state to another without a change in chemical composition. |
|
|
Term
| Examples of Physical Change |
|
Definition
| Melting an ice cube, crumpling a sheet of paper and casting silver into a mold. |
|
|
Term
|
Definition
| Rearrangement of the atoms of one or more substances in their chemical properties or composition. |
|
|
Term
| Examples of Chemical Change |
|
Definition
| Burning Wood and dissolving salt in water. |
|
|
Term
|
Definition
| A pure substance has uniform composition and properties in all its parts, as it consists of particles of only one kind. For example, sugar and salt are pure substances. |
|
|
Term
|
Definition
| A substance is said to be impure if it has particles of other substances mixed in it. |
|
|
Term
|
Definition
| Substance that cannot be broken down by chemical means. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| A thing that is composed of two or more separate elements; a mixture. |
|
|
Term
|
Definition
| Water, salt and hydrogen peroxide. |
|
|
Term
|
Definition
| Two or more substances combine so each substance retains its own chemical identity. |
|
|
Term
| Heterogeneous and Homogeneous Mixtures |
|
Definition
| A homogeneous mixture is where the components that make up the mixture are uniformly distributed throughout the mixture. A heterogeneous mixture has components that are not uniform. |
|
|
Term
| Define Intensive Property |
|
Definition
| An intensive property is a property of matter that does not change as the amount of matter changes. |
|
|
Term
| Examples of Intensive Property |
|
Definition
| Density and specific gravity. |
|
|
Term
| Define Extensive Property |
|
Definition
| An extensive property is a property of matter that changes as the amount of matter changes. |
|
|
Term
| Examples of Extensive Property |
|
Definition
|
|
Term
|
Definition
| Chromatography is a group of laboratory techniques to separate the components of a mixture by passing the mixture through a stationary phase. |
|
|
Term
|
Definition
| Gas Chromatography which separates mixtures on the basis of their distribution between a stationary liquid phase and a mobile gas phase. |
|
|
Term
|
Definition
| Liquid Chromatography is when the stationary phase is a finely ground particulate solid. |
|
|
Term
| Thin Layer Chromatography |
|
Definition
| Thin Layer Chromatography incorporates a solid stationary phase and a mobile liquid phase to effect the separation of the constituents of a mixture. |
|
|
Term
|
Definition
| We can use chromatography to separate the components of inks and dyes. |
|
|
