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General Chemistry Final Exam Review #1 Flashcards | StudBud
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General Chemistry Final Exam Review #1
General Chemistry Final Exam Review #1
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Chemistry review for the first half of general chemistry. #chemistry #review
Flashcards
53 cards
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Questions
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Answers
1
Which of the following is a liquid at room temperature?
Kr
Au
Hg
F
2
What is the process called when a solid object goes directly to being a gas?
sublimation
melting
deposition
boiling
3
Describe the picture as either accurate, precise, both, or neither.
Neither
precise but not accurate
Both
Accurate but not precise
4
Light is emitted when...
an electron goes from an excited state to ground state
when a proton goes from ground state to an excited state
an electron goes from ground state to excited state
when a proton goes from the excited state to ground state
5
Calculate using significant figures: 52.03 x 0.041 =
2
2.1
2.133
2.13
6
How many Dm are in 45 cm?
0.00045
45
4.5
0.0045
7
Chemical equations must be balanced because....
law of conservation of matter
Chemistry is hard
we must avoid creating a disturbance in the force.
My teacher wants to make my life difficult
8
What is the oxidation number of an boron atom?
+13
+3
+5
-3
9
Which element has the electron configuration 1s
2
2s
2
2p
6
3s
1
?
sodium
potassium
lithium
magnesium
10
Which of the following numbers is written correctly?
0.57x105
10.47x10-1
4.348x10-4
11
Which of the following is a characteristic of a metal?
ductile
luster
all of the answers
malleable
12
What is chemistry?
Branch of Science dealing with the interactions of matter
The Class I am in right now.
All of the answers.
My favorite subject ever.
13
Write lead-204 using the correct symbol.
82204Pb
82122Pb
20482PB
20482Pb
14
Which of the following is a chemical change?
phase change
oxidization
dissolving
crushing
15
Is the time it takes you to get to class a quantitative or qualitative measurement?
qualitative
quantitative
16
Which of the following are isotopes?
Co-56 & Cu-56
Pb-224 & Sb-224
N-14 & O-14
C-12 & C-14
17
Which of the following is an EXTENSIVE property
Mass
Boiling point
Density
Reactivity
18
What is the correct formula for cobalt (II) hydroxide?
Co(OH)2
CoOH2
Co2OH
CH2
19
Which of the following is a correct orbital diagram?
B
A
C
E
20
Which orbital can hold 2 electrons?
d
f
p
s
21
What is the formula for potassium nitrate?
KN3O2
KNO3
K2NO
KNO2
22
What is the shape of a p-orbital?
dumbell-donut
sphere
dumbell
figure 8
23
Which of the following are
NOT
examples of a physical property?
density
pH
color
boiling point
24
How many electrons are in a double bond?
8
2
1
4
25
Which of the following describes a Group 18 element?
Halogen
Alkaline Earth Metal
Alkali Metal
Noble Gas
26
Which of the following has a polar covalent bond?
NH4
O2
MgBr
H2O
27
Which of the following is the largest unit conversion?
kilometer
decimeter
meter
dekameter
28
How many electrons are in xenon?
77
131
185
54
29
Alkali metals will gain/lose how many electrons to become a noble gas?
gain 2 electrons
lose 2 electrons
gain 1 electron
lose 1 electron
30
What is the shape of carbon dioxide (CO
2
)?
bent
triganal planar
tetrahedral
linear
31
Which element will gain an electron to become an ion?
Rb
Mg
Ga
S
32
How many protons are in an element of cobalt?
32
27
12
54
33
How many significant digits does 0.08705000 have?
3
6
7
9
34
What is the SI unit for mass?
pounds
liter
meter
kilograms
35
How many neutrons are in O-18?
16
10
8
18
36
Does taking notes help improve your score on your test? What would the independent variable be?
grade on the test
number of students
taking notes
whether or not you like your teacher
37
How many milliliters are in this graduated cylinder?
36.75
36
36.7
37
38
Sally decides to start a fire in her fireplace. The firewood is undergoing a....
physical property
chemical change
chemical property
physical change
39
What is the difference between isotopes?
# of protons
# of neutrons
# of electrons
40
What is
NOT
part of the scientific method?
Change my data to fit my hypothesis
Make observations
Draw a conclusion
Formulate a Hypothesis
41
What is the density of an object that has a mass of 4.5 grams and a volume of 12 cm
3
?
54 g/cm3
2.7 g/cm3
0.38 g/cm3
42
What scientist discovered the electron using a cathode ray tube?
Ernest Rutherford
John Dalton
J. J. Thompson
Niehls Bohr
43
Which of the following is a compound?
Bromine
Water
Zirconium
Arsenic
44
What are the correct coefficients to balance this equation? C
2
H
6
+O
2
→ CO
2
+ H
2
O
2,3,4,6
2,3,2,3
4,6,8,12
2,1,2,3
45
The number of neutrons + the number of protons tells us what about the atom?
number of electrons
atomic number
atomic mass
identity
46
Which number represents the amplitude of the wave?
2
3
1
4
47
Which rule states that e
-
must fill the lower energy sub-levels before higher energy orbitals?
Pauli's Exclusion Principle
Aufbau Principle
Hund's Rule
Ms. Nichols says so
48
How many sub-levels are there in the 4th energy level?
3
2
4
8
49
Which of the following are in the nucleus?
proton and neutron
electron
neutron
proton
50
Which of the following is an exothermic process?
freezing
melting
sublimation
boiling
51
What is the smallest particle of an element that retains the property of that element?
neutron
atom
proton
electron
52
How many atoms are there in 2CuSO
4
?
8
7
6
12
53
Which of the following elements has 5 valence electrons?
Aluminum
Krypton
Arsenic
Potassium
