Chemistry 1 Final Exam Review
1.
Describe similarities and differences between the three states of matter. How do these particles
move compared to each other?
2.
Explain the difference between a physical and a chemical change. List some examples.
3.
What happens to the amount of matter during a physical or a chemical change?
4.
What is an atom? What is it made of? Describe the subatomic particles present in terms of their
mass, charge and locations.
5.
What is the difference between mass number and atomic number?
6.
How many protons, neutrons and electrons does the isotope potassium-42 have?
7.
How are elements different from each other?
8.
How are isotopes different from each other? How are they the same?
9.
What are valence electrons? How many can an atom have? Why are they important?
10.
Draw the electron configurations and dot structures for the elements Boron, Vanadium, Rubidium and
Selenium.
11.
What is the difference between the excited state and the ground state of an electron?
12.
How do electrons get “excited”?
13.
What are periods on the periodic table? What do elements in the same period have in common?
14.
What are groups/families? What do elements in the same family have in common
15.
What is a chemical bond? Why do atoms bond together?
16.
How is an ionic bond formed? What elements are involved?
17.
How does a covalent bond form? What types of elements are involved?
18.
Name: Ca(ClO3)2
19.
Write the formulas for:
Strontium Hydroxide,
N3Br5
Cu3P
S2O
Tetracarbon Octahydride,
Titanium (III) Sulfide,
Iodine Difluoride
20.
At room temperature, salt is a solid, water is a liquid, and oxygen is a gas. Why are they different
states of matter?
21.
When a glass of water is in the process of freezing, what happens to the temperature? What happens
to the temperature when the water is in the process of boiling?
22.
On the heating curve to the right, label the states of
matter and any phase changes that are occurring.
23.
How is heat conducted in a solid?
24.
What happens to the physical and chemical properties of
the starting materials in a reaction after they change
chemically to form new products?
25.
Label the pictures below as either chemical or physical changes.
26.
How many protons and electrons does an aluminum ion, Al3+, have? S2-? Ba2+? Br1-?
27.
What are the family names for Groups 1, 2, 17 and 18?
28.
If you combine aluminum with nitrogen, what type of compound is formed? How do you know? What is the
name of the compound? What is its formula? What is the ratio of the elements in the compound?
29.
What compound is formed by combining Chlorine and Barium? What is the formula? What is the ratio
of the atoms of the elements in the compound? Is it an ionic or covalent compound?
30.
What is the difference between endothermic and exothermic reactions? What happens to the
temperature in each?
31.
Angel observes that on a warm day her goldfish seems to swim at the top of her tank. She thinks that
this is because there isn’t enough dissolved oxygen in the tank for the fish and decides to do an
experiment. She places a dissolved oxygen meter in a similar tank with some water. She records the
temperature of the water and also the amount of dissolved oxygen in the tank. She then slowly raises
the temperature of the tank and records the amount of dissolved oxygen over a period of time.
a.)
Write a hypothesis for Angel’s experiment.
b.)
Identify the dependent, independent and control variables in the
experiment.
c.)
What is the relationship between the temperature of the water
and the amount of oxygen dissolved? Is this a direct or inverse
relationship?
d.)
What conclusion can Angel draw from this data?
Angel’s graphed data: