Honors Chemistry Homework Packet
Phase Change
Name the substance(s) that are a liquid at 105°C
____________________________________________________________________
Name the substance(s) that are a solid at 7°C
____________________________________________________________________
Name the substance(s) that are a gas at -200°C
____________________________________________________________________
Which colorless substance is a liquid at -30°C?
____________________________________________________________________
Which colorless substance is a gas at 60°C?
____________________________________________________________________
Which colorless substance is a solid at -150°C?
____________________________________________________________________
Name the substance(s) that are a gas at 460°C
____________________________________________________________________
What is the color of the substance(s) that is a solid at 85°C
____________________________________________________________________
What is the color of the substance(s) that is a gas at -15°C
____________________________________________________________________
Honors Chemistry Homework Packet
Classification of Matter
Please fill in the matter triangle using the words from the word bank. You must also give the
definitions and one example for each of the words in the word bank. The top of the triangle will
have the most general term and become more specific as you move downward. The left of the
triangle will have the most ordered term and become more disordered as you move to the right.
Word Bank
Matter
Pure substance
Molecule
Solutions
Heterogeneous mixture
Homogeneous mixture
Element
Mixture
Compound
Atom
Definition
Example
Honors Chemistry Homework Packet
Compound or Mixture
Identify each as a mixture or a compound. For each mixture further classify it as homogeneous
or heterogeneous.
1. Soda ______________________________________
2. Candle Wax_________________________________
3. Fog________________________________________
4. Ink________________________________________
5. An egg_____________________________________
6. Ice________________________________________
7. Gasoline____________________________________
8. Spaghetti sauce_______________________________
9. Glass_______________________________________
10. Table sugar__________________________________
11. River water__________________________________
12. Cough syrup_________________________________
13. Blood_______________________________________
14. Peanut butter_________________________________
15. Motor oil____________________________________
Honors Chemistry Homework Packet
Chemical or Physical Property
A physical property is observed with the senses and can be determined without destroying the
object. For example: color, shape, mass, length, and odor are all examples of physical
properties.
A chemical property indicates how a substance reacts with something else. The original
substance is fundamentally changed in observing a chemical property. For example, the ability
of iron to rust is a chemical property. The iron has reacted with oxygen, and the original iron
metal is changed. It now exists as iron oxide, a different substance.
Classify the following properties as either chemical or physical by putting a check in the
appropriate column.
Property
Blue color
Density
Flammability
Solubility
Reacts with acid to form H2
Supports combustion
Sour taste
Melting point
Reacts with water to form a gas
Reacts with a base to form water
Hardness
Boiling point
Can neutralize a base
Luster
Odor
Physical Property
Chemical Property
Honors Chemistry Homework Packet
Chemical or Physical Change
Directions: For each of the following, determine whether a chemical or physical change is taking
place:
1. A hot dog is cooked.
a. Chemical or physical change?
b. Your reason:
2. Thousand Island dressing and mayonnaise are mixed to make “secret sauce” for hamburgers.
a. Chemical or physical change?
b. Your reason:
3. Water is boiled in preparation for making pasta.
a. Chemical or physical change?
b. Your reason:
4. Old ham goes bad in the refrigerator.
a. Chemical or physical change?
b. Your reason:
5. A rock star gets a tattoo on his forehead.
a. Chemical or physical change?
b. Your reason:
Honors Chemistry Homework Packet
In a physical change, the original substance still exists; it has only changed in form. In a
chemical change, a new substance is produced. Energy changes always accompany chemical
changes.
Directions: Classify the following as being a physical or chemical change.
1. Sodium hydroxide dissolves in water. __________________________________
2. Hydrochloric acid reacts with potassium hydroxide to produce a salt, water, and heat.
__________________________________
3. A pellet of sodium is sliced in two. __________________________________
4. Water is heated and changed to steam. __________________________________
5. Potassium chlorate decompresses to potassium chloride and oxygen gas.
__________________________________
6. Iron rusts. __________________________________
7. When placed in H2O, a sodium pellet catches on fire as hydrogen gas is liberated and sodium
hydroxide forms. __________________________________
8. Evaporation. __________________________________
9. Ice melting. __________________________________
10. Milk sours. __________________________________
11. Sugar dissolves in water. __________________________________
12. Wood rotting. __________________________________
13. Pancakes cooking on a griddle. __________________________________
14. Grass growing in a lawn. __________________________________
15. A tire is inflated with air. __________________________________
16. Food is digested in the stomach. __________________________________
17. Water is absorbed by a paper towel. __________________________________
Honors Chemistry Homework Packet
Determine if the following properties are intensive (I) or extensive (E)
___1. Mass
___2. Density
___3. Boiling Point
___4. Volume
___5. Length
Determine if the following changes are chemical (C) physical (P)
___1. Water is heated and changed to steam
___2. Iron rusts
___3. Sugar dissolves in water
___4. Water is absorbed by a paper towel
___5. Pancakes cooking on a griddle
Determine if the following properties are chemical (C) or physical (P):
___1. Color
___2. Boiling point
___3. Can neutralize a base
___4. Density
___5. Reacts with water violently
Determine if the following mixtures are homogeneous (M) or heterogeneous (T):
___1. Ink
___2. Crunchy Peanut Butter
___3. Oatmeal Raisin Cookie
___4. Kool-Aid
___5. Blood
Determine if the following is an element (E), compound (C), or mixture (M):
___1. Fe
___2. CO
___3. Mn + CoCl3
___4. H
___5. Al2(SO4)3