| A | B |
|---|
| CO2 | covalent |
| carbon dioxide | CO2 |
| Na2 0 | ionic |
| sodium oxide | Na2 O |
| BeCrO4 | polystomic |
| berylium chromide | BeCrO4 |
| mixture | 2 or more substances that can be seperated by physical means |
| compound | 2 or more substances that must be separated by chemical means |
| element | substance that is pure & made of only one type atom |
| heterogeneous | mixture that is different throughout |
| homogeneous | mixture that is the same throughout |
| Law of Conservation of Mass | Mass is neither destroyed or created in chemical reactions |
| meter | unit of length, equal to 3.3 ft. |
| centimeter | unit of length, equal to 1/100th of meter |
| width of pinky finger | centimeter |
| liter | unit of volume, just bigger than a quart |
| gram | unit of mass, weights about 1 dollar bill |
| solid | molecules that are tightly packed & retain their shape & size |
| liquid | molecules that can move/slide over each other & have definate size/volume - not shape |
| gas | molecules that bounce off of each other, can be compressed, take the shape of the container |
