Chapter 3 and 4 Study Guide
Chemistry
Chapter 3
List three physical properties of matter:
List three chemical properties of matter:
Classify the following as intensive or extensive properties:
Length
Color
Density
Melting point
Conductivity
Volume
Temperature
Mass
Weight
State of Matter
Area
Hardness
List 5 pieces of evidence that a chemical change has occurred:
Are changes of state physical or chemical changes?
Which state of matter has a fixed shape?
Which two states of matter have a fixed volume?
Which state of matter can be compressed?
Which two states of matter take the shape of their container?
What is the difference between a gas and a vapor?
In the chemical formula C + O2  CO2, what is/are the reactant(s)? What is/are the
product(s)?
Describe the law of conservation of mass in your own words.
When mass gets “lost” during a chemical reaction, what probably happened (especially
if one of the products is a gas)?
Chapter 3 and 4 Study Guide
Chemistry
Mixtures can be classified as either ___________________________ or
_________________________
Another name for a homogeneous mixture is a ______________________________
List 3 homogeneous mixtures:
List 3 heterogeneous mixtures:
Any mixture that has a solute which is fully dissolved is a ____ (homo or hetero) mixture
List 5 ways to separate a mixture:
1. Manual Separation
2.
3.
4.
5.
Is separating a mixture a physical or chemical change?
Is filtration usually used for homogeneous or heterogeneous mixtures?
Is distillation usually used for homogeneous or heterogeneous mixtures?
Is crystallization usually used for homogeneous or heterogeneous mixtures?
Classify all matter in the chart:
Matter
Pure Substance
What is the difference between a compound and a mixture?
What is Dmitri Mendeleev known for?
Chapter 3 and 4 Study Guide
Chemistry
Chapter 4
Match:
Aristotle
Discovered the neutron
Chadwick
Created the plum pudding model for an atom
Democritus
The first philosopher to describe an atom
Dalton
His gold foil experiment lead to the discovery
of the nucleus
Rutherford
He believed that all mater was made of
earth, air, water, and fire
Thomson
Though not entirely accurate, his work is the
basis for modern atomic theory
What was discovered using the cathode ray?
Name the three subatomic particles that make up an atom:
Which two subatomic particles are found in the nucleus?
Which two subatomic particles have almost the same mass?
How does an electron’s mass compare to that of a proton or neutron?
Where is most of an atom’s mass located?
What are the charges associated with protons, neutrons, and electrons?
What does the atomic number in the periodic table tell us?
What does the mass number of an element tell us?
What is an isotope?
Why is the atomic mass in the periodic table not the same as the mass number for a
given isotope?
If an element has an atomic mass of 39.9, what is likely the mass number of the most
common isotope of the element?
Chapter 3 and 4 Study Guide
Chemistry
How are nuclear reactions different from chemical reactions?
Name the three common types of radiation given off by nuclear reactions:
List the radiation in order from weakest to strongest:
Which type of radiation is equivalent to a helium nucleus? What is its symbol?
Which type of radiation is a fast moving electron? What is its symbol?
Which type of radiation is in the form of high energy electromagnetic waves? What is its
symbol?
Why are some nuclei unstable?
What happens to an atom’s energy during nuclear decay?
What is the different between nuclear fission and nuclear fusion?
Does a nuclear power plant use nuclear fission or fusion?
Are reactions on the sun fission or fusion reactions?
How were all elements heavier than helium formed?
What does “half-life” mean?
Problems:
Conservation of mass (3.2 notes)
Percent by mass
(3.4 notes)
Use the periodic table to identify protons, neutrons, electrons, etc for an element (Ch 4
notes: The Atom)
Calculate atomic mass with knowledge of isotope abundance (Isotopes notes)
Write nuclear equations (worksheet given out)
Solve half-life problems (back of the nuclear equations worksheet)
Remember that class materials are on the website, and that you can view the key for
past webassigns. Webassign also lets you practice the math problems again when you
press the “+” sign at the top of the problem and click “practice another version”.