Ch 2 and 16 vocab

3. non-uniform composition
8. the property of a substance to not react.(its stable)
9. substance that cannot be broken down into simplar substances by chemical means.
12. a change that requires a change in a chemical composition.
15. Properties that do change that chemical nature of matter.
18. measuring the amount of heat involved in a chemical reaction or other process.
20. amount of heat required to raise a substance one degree celcius/kelvin.

1. refers to a substance that is consistant or uniform throughout is volume.
2. made of only one type of atom or only one type of molecule.
4. combination of 2 or more pure substances.
5. realeses out of the reaction.
6. are changes affecting the form of a chemical substance, but not its chemical composition.
7. the degree or intensity of heat present in a substance or object.
10. a unit of energy.
11. amount of size does not matter.
13. something that has mass and takes up space.
14. substance consisting of atoms oer ions of 2 or more different elements in definate properties joined by chemical bonds into a molecule.
16. in to the reaction.
17. a homogeneous mixture composed of two or more substances.
19. the quality of being hot.