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