1. Chapter 2 Vocabulary
_____________: The amount of matter a substance has; different from ‘weight’ which is dependent on gravity.
Volume: __________________________________________
_______________________________.
___________________: Any substance that takes up space (volume) and has mass.

3. Physical Versus Chemical Properties
_______________ Property: A quality or condition of a substance that can be measured without changing the substance’s composition (chemical structure).
Color, state, melting point, freezing point are examples
Physical ____________: During a physical change, some properties of the substance change, but the composition of the material does NOT change. Phase changes are an example
Physical changes can be ______________________ (phase changes) or ___________________________ (broken glass).

5. Mixtures: ________________________ _________________________________
___________________________ Mixture: When the composition of the mixture is EVEN throughout. Every sample of the mixture would contain the same ratio of substances. A ___________________________ is another name for a homogenous mixture.
Brass is an example (even mixture of copper and nickel)
___________________________ Mixture: When the composition of the mixture is NOT uniform throughout.
Chicken noodle soup is an example

6. Elements and Compounds
_____________________: The simplest form of matter that has a unique set of properties. (Think Periodic Table!)
______________________: A substance that has two or more elements chemically combined in a fixed proportion.
examples: H2O, CO2, NaCl, C6H12O6
Compounds CAN be broken down into elements by chemical means, but elements CANNOT.
________________________ Change: A change that produces matter with a different chemical composition than the original matter.

7. Possible clues to chemical change include
(1) _____________________________________
(2) ___________________________________________
(3) ___________________________________________
(4) formation of a _______________________________ (solid coming out of solution)