CHEM 108 – Chemistry
LESSON 1
Pre-test
1. Define the 3 states of matter.
Solid – matter that has a definite shape and volume
Liquid – matter that has a definite volume but indefinite shape
Gas – matter that has no definite shape and volume
2. These substances cannot be decomposed into simpler substances.
Elements
3. What elements can exist naturally as diatomic?
Bromine, Hydrogen, Oxygen, Nitrogen, Chlorine, Iodine, and Fluorine
4. Mixtures that are uniform throughout are called ____.
Homogeneous Mixtures
5. Provide the chemical symbol of the following:
a. Carbon – C
b. Magnesium – Mg
c. Copper – Cu
d. Silver – Ag
6. ____ properties do not depend on the amount of sample being
examined.
Intensive Properties
7. ____ properties depend on the amount of sample, with two
examples being mass and volume.
Extensive Properties
8. ____ is defined as the amount of mass in a unit volume of a
substance.
I think the answer is Kilogram or kg.
9. _____ is a measure of the hotness or coldness of an object.
Temperature
10. What is the SI base unit of length?
Meter (m)
11. These mixtures do not have the same composition, properties,
and appearance throughout.
Heterogeneous Mixtures
12. Homogeneous mixtures are also called ________. From
what I remember, the other term is “solution”.
13. What kind of change happens when a substance changes its physical
appearance but not its chemical composition?
Physical Change
, 14. What kind of change happens when a substance is transformed
into a chemically different substance?
Chemical Change
15. We can separate a mixture into its components by taking advantage of
differences in their ____.
Boiling point is one way.
Activities/Exercises
1. Distinguishing among Elements, Compounds, and Mixtures.
White Gold
Is it uniform
throughout?
Yes!
Homogeneous Heterogeneous
Mixture
Does it have a
variable
composition? Yes!
Homogeneous
Pure Substance Mixture
(Solution)
Both samples are uniform (in composition) throughout so the White
Gold would be homogeneous in nature. However, they differ in the relative
amounts of the two elements so the composition would be a variable. White
Gold is an alloy (metallic solid solution) of two or more elements, primarily of
Gold, and others such as Nickel and Zinc, in this case, Palladium.
Summarizing all the learned facts, White Gold is a Homogeneous Mixture
(solution).
LESSON 1
Pre-test
1. Define the 3 states of matter.
Solid – matter that has a definite shape and volume
Liquid – matter that has a definite volume but indefinite shape
Gas – matter that has no definite shape and volume
2. These substances cannot be decomposed into simpler substances.
Elements
3. What elements can exist naturally as diatomic?
Bromine, Hydrogen, Oxygen, Nitrogen, Chlorine, Iodine, and Fluorine
4. Mixtures that are uniform throughout are called ____.
Homogeneous Mixtures
5. Provide the chemical symbol of the following:
a. Carbon – C
b. Magnesium – Mg
c. Copper – Cu
d. Silver – Ag
6. ____ properties do not depend on the amount of sample being
examined.
Intensive Properties
7. ____ properties depend on the amount of sample, with two
examples being mass and volume.
Extensive Properties
8. ____ is defined as the amount of mass in a unit volume of a
substance.
I think the answer is Kilogram or kg.
9. _____ is a measure of the hotness or coldness of an object.
Temperature
10. What is the SI base unit of length?
Meter (m)
11. These mixtures do not have the same composition, properties,
and appearance throughout.
Heterogeneous Mixtures
12. Homogeneous mixtures are also called ________. From
what I remember, the other term is “solution”.
13. What kind of change happens when a substance changes its physical
appearance but not its chemical composition?
Physical Change
, 14. What kind of change happens when a substance is transformed
into a chemically different substance?
Chemical Change
15. We can separate a mixture into its components by taking advantage of
differences in their ____.
Boiling point is one way.
Activities/Exercises
1. Distinguishing among Elements, Compounds, and Mixtures.
White Gold
Is it uniform
throughout?
Yes!
Homogeneous Heterogeneous
Mixture
Does it have a
variable
composition? Yes!
Homogeneous
Pure Substance Mixture
(Solution)
Both samples are uniform (in composition) throughout so the White
Gold would be homogeneous in nature. However, they differ in the relative
amounts of the two elements so the composition would be a variable. White
Gold is an alloy (metallic solid solution) of two or more elements, primarily of
Gold, and others such as Nickel and Zinc, in this case, Palladium.
Summarizing all the learned facts, White Gold is a Homogeneous Mixture
(solution).
