Test 1 (Notes)

2. property that can be observed without altering the chemical formula of the substance.
7. a pure substance that cannot be broken down by an ordinary chemical reaction.
8. uniform composition, has only one phase.
12. cannot be observed without changing the chemical formula of the original substance.
14. property that depends on the type of matter in the sample, not the amount.
19. color change, solid formed, gas formed, sometimes heat/light.
21. a change which does not alter the chemical formula of the substance.

1. not uniform in composition, has more than one phase.
3. systematic investigation that involves: performing an experiment, proposing a hypothesis, testing hypothesis, and finally stating a theory or law that explains a scientific principle.
4. substance that contains 2 or more elements chemically combined in a fixed ratio.
5. study of the composition of matter and the changes that matter undergoes.
6. state of matter with definite volume, no shape.
9. 4th state of matter consisting of hot cations and electrons.
10. element or compound.
11. a reaction that produces matter with a different composition than the original matter.
13. physical property that depends on the amount of matter present.
15. state of matter with definite shape, definite volume.
16. physical blend of two or more substances that are not chemically combined.
17. gaseous state of a substance that is generally a solid or liquid at room temperature.
18. anything that has mass and occupies space.
20. state of matter with no definite volume or shape.