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Duplicate of General Chemistry Sem1 Final Review Flashcards | StudBud
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Duplicate of General Chemistry Sem1 Final Review
Duplicate of General Chemistry Sem1 Final Review
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Chemistry review for the first semester in general chemistry.
Flashcards
61 cards
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Practice quiz
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Questions
61
Answers
1
Which rule states that e
-
must fill the lower energy sub-levels before higher energy orbitals?
Pauli's Exclusion Principle
Ms. Nichols says so
Aufbau Principle
Hund's Rule
2
Which element has the electron configuration 1s
2
2s
2
2p
6
3s
1
?
lithium
sodium
potassium
magnesium
3
Which of the following is an exothermic process?
sublimation
freezing
melting
boiling
4
If the frequency of a wave is 4.53x10
2
Hz, what is the wavelength? Remember c=λν & c= 3.00x10
8
6.62x109
6.62x105
1.36x1011
5
What is the shape of carbon dioxide (CO
2
)?
linear
triganal planar
bent
tetrahedral
6
Which of the following has a larger atomic radius?
Ca
K
Rb
Sr
7
How many electrons are in a double bond?
2
4
1
8
8
How many electrons can be in one orbital?
10
6
1
2
9
Which of the following is a chemical change?
crushing
oxidization
phase change
dissolving
10
What is the formula for potassium nitrate?
KNO3
K2NO
KNO2
KN3O2
11
How many significant digits does 0.08705000 have?
9
7
6
3
12
Does taking notes help improve your score on your test? What would the independent variable be?
number of students
grade on the test
taking notes
whether or not you like your teacher
13
Chemical equations must be balanced because....
law of conservation of matter
matter cannot be destroyed. only rearranged
My teacher wants to make my life difficult
Chemistry is hard
14
Calculate using significant figures: 52.03 x 0.041 =
2.13
2
2.1
2.133
15
How many neutrons are in O-18?
16
18
10
8
16
What color has the smallest wavelength?
yellow
orange
blue
violet
17
Which of the following are isotopes?
N-14 & O-14
Pb-224 & Sb-224
Co-56 & Cu-56
C-12 & C-14
18
What is the SI unit for mass?
kilograms
liter
meter
pounds
19
What is the density of an object that has a mass of 4.5 grams and a volume of 12 cm
3
?
2.7 g/cm3
0.38 g/cm3
54 g/cm3
20
Write lead-204 using the correct symbol.
82204Pb
82122Pb
20482PB
20482Pb
21
What is the smallest particle of an element that retains the property of that element?
neutron
atom
electron
proton
22
What is the oxidation number of an boron atom?
-3
+5
+3
+13
23
Which of the following are
NOT
examples of a physical property?
boiling point
color
pH
density
24
Describe the picture as either accurate, precise, both, or neither.
Neither
Accurate but not precise
precise but not accurate
Both
25
What is the shape of a p-orbital?
sphere
figure 8
dumbell-donut
dumbell
26
How many atoms are there in 2CuSO
4
?
12
6
8
7
27
What is
NOT
part of the scientific method?
Change my data to fit my hypothesis
Make observations
Draw a conclusion
Formulate a Hypothesis
28
Which number represents the amplitude of the wave?
1
4
3
2
29
Which of the following describes a Group 18 element?
Noble Gas
Alkali Metal
Halogen
Alkaline Earth Metal
30
What is the correct formula for cobalt (II) hydroxide?
Co(OH)2
CH2
Co2OH
CoOH2
31
Is the time it takes you to get to class a quantitative or qualitative measurement?
quantitative
qualitative
32
Which of the following is a liquid at room temperature?
Au
Kr
Hg
F
33
Which of the following has a polar covalent bond?
NH4
MgBr
O2
H2O
34
What is chemistry?
My favorite subject ever.
All of the answers.
Branch of Science dealing with the interactions of matter
The Class I am in right now.
35
Which of the following is the largest unit conversion?
dekameter
meter
kilometer
decimeter
36
What is the number of occurrences of a repeating event per time?
frequency
crest
wavelength
amplitude
37
Which of the following numbers is written correctly?
10.47x10-1
0.57x105
4.348x10-4
38
How many complete waves are there in this diagram?
2
3
1
1.5
39
Which of the following elements has 5 valence electrons?
Arsenic
Aluminum
Potassium
Krypton
40
Which element will gain an electron to become an ion?
Mg
Ga
S
Rb
41
What scientist discovered the electron using a cathode ray tube?
John Dalton
J. J. Thompson
Ernest Rutherford
Niehls Bohr
42
What is the correct noble gas configuration for silicon?
[Ar]3s23p2
[Ne]3s23p2
[Ar]3s23p4
[Ne]3s23p4
43
What is the process called when a solid object goes directly to being a gas?
deposition
sublimation
boiling
melting
44
Which of the following is a characteristic of a metal?
luster
ductile
all of the answers
malleable
45
The number of neutrons + the number of protons tells us what about the atom?
number of electrons
identity
atomic mass
atomic number
46
Which wave has the highest frequency?
red
orange
purple
green
47
Sally decides to start a fire in her fireplace. The firewood is undergoing a....
physical property
chemical change
physical change
chemical property
48
Which of the following is a compound?
Water
Arsenic
Zirconium
Bromine
49
How many milliliters are in this graduated cylinder?
36.7
36
37
36.75
50
Which of the following are in the nucleus?
proton
electron
proton and neutron
neutron
51
How many sub-levels are there in the 4th energy level?
3
8
4
2
52
Which of the following is an EXTENSIVE property
Mass
Boiling point
Reactivity
Density
53
How many protons are in an element of cobalt?
12
27
32
54
54
Which of the following is a correct orbital diagram?
E
C
A
B
55
How many Dm are in 45 cm?
45
4.5
0.0045
0.00045
56
Which sub-level can hold 10 electrons?
p
f
s
d
57
How many electrons are in xenon?
54
131
185
77
58
What is the difference between isotopes?
# of electrons
# of protons
# of neutrons
59
What are the correct coefficients to balance this equation? C
2
H
6
+O
2
→ CO
2
+ H
2
O
2,3,4,6
2,1,2,3
2,3,2,3
4,6,8,12
60
Light is emitted when...
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
an electron goes from an excited state to ground state
61
Alkali metals will gain/lose how many electrons to become a noble gas?
gain 1 electron
lose 1 electron
lose 2 electrons
gain 2 electrons
