Name: __________________________
Chem 10 Final 2014
(80 questions)
Choose the best answer choice for each question available.
Observations vs Inferences (5 pts)
 An idea based upon an observation is
called
A) Fact
B) Classification
C) Inference
D) Measurement



Based on Measurement Only…
A) Qualitative
B) Quantitative
 A Blue fragrant flower…
A) Qualitative
B) Quantitative
The diagram below represents a solid
material of uniform composition.
Which of the following statements is
an inference and NOT just an
observation?
A) The liquid is yellow.
B) The liquid tastes sweet.
C) The liquid is apple juice because it
is yellow and sweet.
D) There is 50mL of the liquid.
Qualitative vs Quantitative (5 pts)
Label the following as qualitative or
quantitative…
Variables and Constants (3 pts)
 Circle the definition for
independent variable and
underline the dependent
variable definition.
A) the variable that is being
controlled/changed by the
experimenter - IV
B) the variable that is
measured and shows the
effects after a specific factor
of the experiment has been
controlled/changed - DV
C) the factor that remains the
same throughout the
experiment in order to cause no
additional effects on the
results
D) the variable that is only used
in the control condition.
A professor wanted to see if the type
of textbook students receive would
affect their final exam scores.
Students at a University were split
into two groups (10 students in each
group) and each received a different
text for a philosophy course. Once
group received a traditional textbook,
while the other received an
interactive textbook on a tablet
computer. After the course, the final
exam marks between the two groups
of students was compared. What is
the independent and dependent
variable?
A) The independent variable is the
exam scores and the dependent
variable is the type of textbook
students receive.
B) The independent variable is the
type of textbook students receive and
the dependent variable is the exam
scores.
C) The independent variable is the
students and the dependent variable
is the amount of textbooks.
D) The independent variable is the
kinds of students at the university
and the dependent variable is the
type of textbook students receive.
Measurement and Simple Conversions (5
pts)
-What is the measurement of the
line?
A) 88.5 cm
B) 89.5 cm
C) 88.9 cm
D) 89 cm
-18) Convert 2mL to L.
A) .002 L
B) .02L
C) 20L
D) .2L
Dimensional Analysis (3 pts)
20) Convert 25 days to seconds.
2160000 seconds
Significant Figures (5 pts)
Identify the number of significant figures
for each number below.
- 1.3000
A) 2
B) 3
C) 4
D) 5
- Which measurement contains a total of
three significant figures?
A) 0.01 g
B) 0.010 g
C) 0.0100 g
D) 0.01000g
Solids, Liquids, and Gases (6 pts)
- A substance which takes the shape and
volume of whatever container in which it is
placed is a…
A) Solid
B) Liquid
C) Gas
D) Crystal
Draw a particle diagram for a Solid, Liquid,
and Gas.
Physical vs Chemical Changes (10 pts)
Sort the following as a physical chemical or
property (A) or a Chemical property or
change (B).
- Creates a new substance when this type of
change occurs….
A) Physical
B) Chemical
Atomic Structure (5 pts)
- The atomic number of an atom is always
equal to the total number of…
A) Neutrons in the nucleus
B) Protons in the nucleus
C) Neutrons plus protons in the atom
D) Protons plus electrons in the atom
Element, Compounds, and Mixtures (10
pts)
- What kind of pure substance forms when
two elements chemically combine?
A) Element
B) Compound
C) Heterogeneous Mixture
D) Homogenous Mixture
- How is a compound different from a
mixture?
A) Compounds have two or more components.
B) Only Compounds can be liquids.
C) Compounds are chemically combined while
mixtures are physically combined.
D) Mixtures are chemically combined while
compounds are physically combined.
- What is the total number of protons and
neutrons in
? What is the total
number of JUST protons? 35 protons, 80 =
protons+neutrons
History of the Atom (5 pts)
-What subatomic particle is Chadwick
credited with discovering?
neutron
- Which subatomic particle is Rutherford (of
Rutherford and Bohr) credited with
discovering?
proton
- Label the scientist credited with the
following models… (Dalton, Thompson, &
Bohr)
A) Plum Pudding ModelThompson
B) Solid Sphere Model Dalton
C) Bohr Model Bohr
- What is the wavelength of electromagnetic
radiation which has a frequency of 6.282 x
1014 Hz?
A) 1.883 x 1023 m
B) 2.095 x 106 m
C) 4.772 x 10-7 m
D) 4.772 x 10-7 nm
E) 530.9 nm
Energy Levels and Orbitals (5 Q’s)
Draw an S & P orbital.
Energy & Light (5 Q’s)
- What does the image depict?
Use the table below to answer the questions.
A) The emission of light and an electron
falling in energy levels
B) The emission of light and an electron
rising in energy levels
C) The absorption of light and an electron
falling in energy levels
D) The absorption of light and an electron
rising in energy levels
- Light is emitted when an electron…
A) vibrates
B) rises/jumps in energy levels to an excited
state
C) leaves the atom
D) falls down in energy level and returns to
ground state
- Which of the following sublevels is NOT in
the 3rd energy level?
A) s sublevel
B) p sublevel
C) d sublevel
D) f sublevel
- The 2d orbital is a possible orbital: true or
false?
A) True
B) False
-How many sublevels are in the 3rd energy
level? 3 sublevels
Electron Configuration (3 Q’s)
- Which of the following is the electron
configuration for Oxygen?
A)
B)
C)
D)
- How many electrons are there in an
element that has the following electron
configuration?:
A) 6
B) 11
C) 16
D) 3
Write the electron configurations for the 5
elements below. DRAW YOUR ORBITAL
MAP FIRST. (3 pts)
- Which element has 1 valence electron?
A) Na
B) Mg
C) Ne
D) Ag
1) Describe at least one difference between
metals vs nonmetals. (1 pt)
Metals – Shiny, hard, ductile, malleable, good
heat and electricity conductors
Nonmetals – brittle solids or gases, poor
conductors
2) Label the blank periodic table below using
the following vocab words. (2 pts)
Alkali Metals, Alkaline Earth Metals,
Halogens, Metalloids, Noble Gases,
Lanthanide/Actinide Series, Transition
Metals
1) Iron (Fe)
2) Bromine (Br)
3) Iodine (I)
Periodic Table (5 Q’s)
Use the periodic table and your knowledge
about the periodic table to answer questions
76-80.
- Which of the following groups in the
periodic table are inert (nonreactive gases)?
A) Alkali Metals
B) Alkaline Earth Metals
C) Noble Gases
D) Halogens
E) Metalloids
4) What group and how many valence
electrons does Magnesium (Mg) have? (1 pt)
Alkaline earth metals and 2 valence
electrons
5) What group and how many valence
electrons does Chlorine (Cl) have? (1 pt)
Halogens and 7 valence electrons