Chapter 2

1. CHEMISTRY

2. Matter breakdown

3. Awesome words to know
Pure substance
Element
Compound
Atom
Heterogenous mixture
Homogenous mixture

4. Awesome words to know
(count.)
Solution
Suspension
Colloid

5. Letters are important in
science too!
To tell if something is one thing or another(CAPITAL)
Au- compound or element?
Sand- heterogenous or homogenous mixture?
H2O- compound or element?
Oxygen-what is it?
Pool water- heterogenous or homogenous mixture?

6. Property
What are all the properties that something can have?
How do you test each one?

7. Properties
Viscosity
Conductivity
Malleability
Hardness
Melting/freezing point
Density

8. Properties (count.)
Boiling/condensing
Odor
Solubility

9. Separation Techniques
Distillation
Filtration
Evaporation

10. Filtration
Pour mixture into funnel that is over flask/beaker
(funnel paper in funnel)

11. Distillation
Put the liquid in a test tube attached to a wooden lab
station, and put an alcohol burner under it. put a
distillation apparatus in the top running to another test
tube that is sitting in a 500 m L beaker of cold water
and wait.

12. Evaporation
Put the mixture into an evaporating dish and place on a
mesh stand. Place an alcohol burner under mesh stand
and wait.

13. Chemical Properties
Chemical change
Physical changes

14. What Kind of Change?
Can you get it back
after the change?
Yes No
Physical Change Chemical Change

15. 2.3 Question Answers
1.Chemical properties can be observed when a
substance in a sample of matter is changing
into a different substance.
2.Change in color, production of a gas and the
formation of a precipitate.
3.In a chemical change the composition of the matter
changes, when matter undergoes a physical change, the
composition remains the same.

16. 4.The rust will weaken the iron.
5.It is a physical change because it is still butter, it was
just melted then burned.
6.A raw egg is liquid and a hard boiled egg is solid.
7.I is a chemical change because the bleach breaks the
chemical bonds that makes up the color.
8.It is not very reactive.