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Chem 101 final Flashcards | StudBud
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Chem 101 final
Chem 101 final
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Questions
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Answers
1
Which of the following is NOT a dervied unit?
Area
Volume
Kilogram
Density
2
Which of the following is a physical change?
Hydrogen peroxide bubbling on a cut
An apple rotting
Vaporization
Rust forming
3
What is the molecular formula if the emperical formula is CH and there's a molar mass 26.04 g/mol?
C2H2
CH
C2H8
CH13
4
Who is this?
Toe-Bean Maguire
Burrito
Casper
Yabbo
5
What is the acid form of acetate?
Hydroacetic acid
Acid
Acetous acid
Acetic acid
6
What are the charges on a proton, electron, and neutron?
p = (0), e = (0), n = (0)
p = (+), e = (-), n = (0)
p = (-), e = (+), n = (0)
p = (+), e = (+), n = (0)
7
What is this group called?
Halogens
Chalcogens
Alkali earth metals
Alkali metals
8
ΔT in Q = mcΔT stands for change in time
True
False
9
These are examples of a homegeneous mixture
True
False
10
ΔT in Q = mcΔT stands for (T
1
- T
2)
False
True
11
How many sig figs should answer be:
2 sig figs, 1 decimal place
3 sig figs, 3 decimal places
4 sig figs, 3 decimal places
3 sig figs, 2 decimal places
12
Emperical formula for C: 63.15%, H: 5.30%, O: 31.55%
C63H5O31
CHO
C3H3O
C8H8O3
13
Would you go to a tutor session next week?
No
Yes, but only if I have the exam
Yes
14
49 K to ℉
-371.5 ℉
-271.5 ℉
371.5 ℉
271.5 ℉
15
An acid-base reaction occurs when an acid and base react to form an ionic salt
True
False
16
Which is NOT an example of a crsytalline?
Snowflakes
Salt
Diamonds
Glass
17
I did a lot of things before coming here, but what is something I haven't done?
Gone on a week long rafting trip
Eaten fresh oysters on the Oregon Coast
Drawn blood from a baby
Fed a lemur fruit loops
18
49 ℉ to K
322 K
393.35 K
282.59 K
120.20 K
19
Chemistry is the best subject ever
False
True
20
c in Q = mcΔT stands for the specific heat capacity
True
False
21
Law of constant comp: All samples of a given compound may have different proportions of their constituent elements
False
True
22
Which of the following is NOT true about the Law of Conservation of Mass?
It is a scientific law
It is a model of how atoms interact in a balanced chemical equation
Matter is neither created or destroyed
It relates to chemical reactions
23
Which of the following takes the shape and volume of its container?
Solid
Water
Casper
Gas
24
These are examples of a homegeneous mixture
False
True
25
How many grams are in 1 kilogram?
10 g = 1 kg
100 g = 1 kg
1000 g = 1 kg
1 g = 1 kg
26
How many protons, neutrons, and electrons does Ytterbium have?
p+ = 70, n = 173, e- = 70
p+ = 70, n = 103, e- = 70
p+ = 103, n = 70 , e- = 70
p+ = 70, n = 103, e- = 70
27
What is pressure
Result of collisions between liquid molecules and the surfaces around them
Result of collisions between aqueous molecules and the surfaces around them
Result of collisions between gaseous molecules and the surfaces around them
Result of collisions between solid molecules and the surfaces around them
28
Solve: 5.70L to cubic inches
2244 in3
0.0144 in3
348 in3
843 in3
29
The following are examples of exact numbers
False
True
30
How many sig figs: 0.0092040
4
5
8
6
31
Mass vs. Weight (2 correct ansewers)
Mass is a measure of quantity of matter
Weight is a measure of quantity of matter
Mass relies on gravity, weight does not
Mass does not rely on gravity, weight does
32
What is this group called?
Transition metals
Alkali earth metals
Alkali metals
Metalloids
33
I filled out my course evaluation for Dr. Farsi (and Laurel)
No
Yes
No, but I mean I guess I will
34
Which is false?
Molecular elements are highly reactive
Atomic elements can exist as indpendent atoms
Molecular elements typically contain a subscript in the chemical formula
Molecular elements can exist as indpendent atoms
35
Electrons are the only charges found in the nucleus
False
True
36
Who were the first people to theorize the atom?
Roman philosophers, Leucippus and Democritus
European philosopher, Ernest Rutherford
Greek philosophers, Leucippus and Democritus
American philosopher, John Dalton
37
Molecular compounds are when a nonmetal and nonmetal bond
True
False
38
Cations are negative and can be found to the right of the periodic table
False
True
39
Which does NOT define a redox reaction?
Non-metal and metal
Transfer of e-
Direct interaction with O
Production of a gasseous species
40
I have credit for all 100 level chemsitry classes
False
True
41
How do theories differ from laws?
Theories help predict behavior beyond a law or observation
They don't
Scientific theories are sometimes called "models", laws are not
Theories provide a broader and deeper explaination of laws and observations
42
Atoms are composed of matter
True
False
43
Who is the person in the middle of this photo?
Daniel Stelck
The father, the son, and the holy spirit
A bitter-sweet memory
Lida Farsi
44
What are the proper units for specific heat capacity?
J / ℃
J /g ℃
J /g
J℃
45
Water has the highest specific heat capcity
True
False
46
Name, balance, and categorize: AlSO
4
Aluminum sulfate, Al3SO4,2, ionic
Aluminum sulfite, Al3(SO4)2, ionic
Aluminum sulfate, Al2(SO4)3, ionic
Aluminum sulfate, Al3(SO4)2, ionic
47
How many sig figs should answer be:
3
6
2
5
48
What is a hypothesis?
A concrete conlusion made about the world around us
An equations with numbers
Something that is always true not matter what
An interpretation of explaination of obersvations
