Name: ___________________
Date: ________
Period: _______
Unit 2 review material
A. Complete the following table on the characteristics of the states of matter
Solid
Liquid
Gas
Definite
Indefinite
Indefinite
Shape
Volume
Definite
Definite
Indefinite
Distance between
particles
Compact
Flow pass each
Flow freely
other
Compressibility
Types of Kinetic
Energy
Not compressible Not easily
Low
compressed
compressed
Med
High
Amount of Liquid
B. Define (see notes on my website for definitions)
1. Matter – Anything that has mass and takes up space.
2. Pure substance 3. Element
4. compound
5. Mixture
Easily
6. Homogeneous mixture
7. Heterogeneous mixture
8. Filtration
9. Distillation
10. Evaporation
11. Manual separation
C. Classification of Matter
Classify each as an element, compound, homogeneous mixture or a
heterogeneous mixture.
1. table salt C
11. Salad dressing HE
21. Iron E
2. gold E
12. Water HM
22. Helium E
3. the air in DHS
13. hydrogen chloride (HCl) C
23. Wood HE
14. carbon E
24. Blood HE
4. carbon E
15. beach sand HE
25. Milk HE
5. copper E
16. water from water fountain
26. oily water HE
HM
6. mercury E
HM
27. soil (dirt) HE
7. Kool-aid HM
17. A root-beer float HE
28. oxygen E
8. fruit salad HE
18. Lucky charms cereal HE
29. pure water C
9. city air HE
19. sodium chloride C
30. sodium E
10. glucose C
20. Flat soda HM
Classify each as a chemical or
Classify each as a chemical or physical
physical change
property
1. boiling water P
1. Copper is a good conductor of heat and
2. burning gasoline C
electricity
3. cooking an egg C
2. ice melts at 0°C.
4. ironing a shirt P
3. a piece of sulfur is burned.
5. evaporating alcohol P
4. 02 is a gas.
6. rusting iron C
5. Iron can rust
7. water evaporates. P
6. titanium is an inert metal.
8. Ripping paper P
7. He is very nonreactive.
9. Steel turns red when heated P
8. Na is a soft, shiny metal.
10. fermenting orange juice C
9. ice melts at 0°C
11. rocks are ground to sand. P
10. water has a high specific heat.
12. silverware tarnishes. C
11. Alcohol burns in presence of a flame
13. digesting a pizza C
12. gold is a yellow metal
14. an ice melting in a drink
13. silver is a soft metal.
15. decomposing meat
14. gold is a very dense metal.
16. evaporating water
15. Hydrogen peroxide will break down
17. sulfur is burned.
into water and oxygen
18. a nail rusts.
16. Sodium is highly reactive with water
19. Carrots rot.
17. Water condenses at 100°C.
20. Bread it cut into slices
18. With electricity water with break down
21. Iron rust
into oxygen and hydrogen
C. Both elements and compounds are examples of a pure substance, how are
they different from each other? Compounds consists of two or more
elements.
D. What are the 4 different separation techniques? Give an example for a
use of each!
Chromatography – separation based on solubility
Distillation – separating saltwater from pure water
Filtration – process by which solid materials are removed from a fluid mixture
Manuel separation – (ex) using a magnet to separate iron filings from sand.
E. Phase and Temperature Diagrams: label the points on the diagrams
below
Phases of Matter present at
point
A Solid
E liquid
I gas
If energy is increasing what is
happening at points
C melting
G evaporation
If energy is decreasing what is
happening at points
C freezing
G Condensation
 What happens to the temperature of a substance during a phase
change? Stays constant

What happens to the temperature of a substance when all of it is in the
same phase and energy (heat is added)? Phase changes occur