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BarronsChemChap1
Question | Answer |
---|---|
Matter | Anything that occupies space and has mass. |
Mass | The quantity of matter that a substance possesses |
Weight | Similar to mass, but can vary. |
Density | d=m/v |
How many states does matter occur in? | Three: solid, liquid gas. |
Solid | Definite size and shape |
Liquid | Definite volume but takes the shape of the container. |
Gas | Has neither definite shape nor volume. |
Distinct Substance | Something that can be subdivided into the smallest particle that still has the properties of that substance. |
Physical Changes | Composition remains constant, yet the physical properties alter. |
Chemical Changes | Changes in the composition and structure of a substance. |