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