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Chemistry Review for Exam Flashcards | StudBud
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Chemistry Review for Exam
Chemistry Review for Exam
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A quiz for the reviewing of our exam in chemistry that is coming up soon.
Flashcards
74 cards
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Practice quiz
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Questions
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Answers
1
Hey! Its been a lot of tough questions. So for a break, here is an easy one. What does 42 mean?
42 = 42, It means nothing <- Wrong.
the * which means anything you want it to be
The ultimate answer to Life, the Universe, and Everything
it is a numerical representation to represent 42 things
2
The trend in the periodic table about atomic radius shows that ...
Atomic radius increases up to down left to right
Atomic radius increases up to down right to left
Atomic radius increases down to up left to right
Atomic radius increases down to up right to left
3
What is the molar mass of glucose?
74.32
180.16
123.45
163.07
4
What type of compounds do polyatomic ions form?
Military compounds
Compound Interest
Covalent compounds
Ionic compounds
5
What is synthesis?
a reaction where a compound is made from harder materials
a reaction where a compound is made from complex materials
a reaction where a compound is made from softer materials
a reaction where a compound is made from simpler materials
6
Molar Mass is...?
liters per mole that molecule weighs
grams per mole that molecule weighs
cm^3 per mole that molecule weighs
Mass of a mole
7
What are the trends for Ionization energy in the periodic table?
Same as electronegative trend
increases top to bottom and right to left
decreases bottom to top and right to left
decreases top to bottom and right to left
8
How many electrons can a d shell hold at max?
2
1
7
10
9
What is a steric number of an molecule?
# of pairs of protons (bonds and lone pairs)
Relating to the spatial arrangement of atoms in a molecule
# of pairs of electrons (bonds and lone pairs)
# of pairs of neutrons (bonds and lone pairs)
10
What is an Intermolecular force?
Forces that are within elements
Forces that are between molecules
An organization within molecules
Forces that are between space and non-space
11
What is an ionic bond?
A sharing of electrons between molecules
A giving up of electron(s) from one element to another
A giving up of proton(s) from one element to another
What is an ionic bond?
12
An organic compound is ...
Silcone containing (for the star trek fans)
WHOLE FOOD's food.
Hydrogen containing
Carbon containing, has carbon in it.
13
What is theoretical yield?
a theory, a Chemistry theory
the amount of the product produced in a chemical reaction
total possible amount of product produced in a reaction
A yield of theories
14
What is Double Replacement?
Single Replacement x2
Everyone has a dancing partner, like multiplying matrices
A replacement of two things
Positive and negative ions in two compounds switch places
15
What are Sig Figs?
Important numbers
Significant Figures
The Most important thing to know for test.
Numbers in a number that important for rounding
16
What is a London (dispersion) Force?
The force it takes to have London's bridges fall
temporary dipoles occur by random jumps in electron cloud
(not an answer)
Happens to with I(subnote-2)
17
Memorize this pic --->
Pick this option, it is right.
How ones uses mass of a compound to find mass of another one
*Remember what happened to Othello when he trusted people
I am the right answer, trust me please*
18
What is VSEPR mean?
Valence Shell Electron Pair Repulsion Theory
misspelled (missing an e) word meaning evening prayer
A drink (also misspelled in question)
misspelled (in question) word meaning evening
19
What is a dipole-dipole force?
attractive force between polar molecules
attractive force between non-polar molecules
attractive force between polar elements
unattractive force between polar molecules
20
What is order of number of electrons in shell (the simple version)?
2, 6, 10, ...
8, 8, 2, ...
1, 2, 3, 4, 5, etc.
2, 8, 8, ...
21
What is an excess reactant?
a excess reactant (grammar important for deciding if right)
reactant, where after reaction, has amounts of it left over
a reactant that is first used up in a reaction
a reaction with excess products
22
How many s
I
g figs in 0.00707
6
2
5
3
23
What is ionization energy?
Engery required to attract electrons
Engery required to remove protons
Opposite of Electropositivity
Engery required to remove electrons
24
Electronegativity is ...
Electricity with a neagtive force
An atom's ablity to push away electrons farther from it
Negative electrons
An atom's ablity to attract and pull electrons closer to it
25
K
alculate: 10.99 x 7.0
77.2
77
76
76.93
26
Is the geometry of a molecule determined by the steric number of central element?
Maybe
No.
YES!
27
What is a dipole?
A force of attraction for molecules
Combination of positive and negative charges
Two tadpoles combined
Separation of positive and negative charges
28
What is a limiting reactant?
Something that limits the reaction
reactant with greater quantities than necessary for reaction
the reactant first used up in a reaction
the reactant NOT first used up in a reaction
29
What is a resonance structure?
A stucture that is another form of the same molecule
Stuff needed to know for bonus points for previous tests
The structure of a molecule
The Lewis dot diagram of that molecule
30
What is a polar molecule?
A bond with zero/no net dipole force and forces cancel out
A molecule with a net dipole force in any direction
A bond located at the poles of the Earth
31
What is a Lewis Dot Structure?
A dotted potrait of Lewis
A way of showing elements and thier valence protons & bonds
Way of showing elements and their valence electrons & bonds
A way of showing elements and their valence neutrons & bonds
32
Balance The Equation in the pic ---->
77CaSiO3 + 6HF ----> 123CaF2 + 42SiF4 + 21H2O
CaSiO3 + 6HF ----> CaF2 + SiF4 +3H2O
3CaSiO3 + 6HF ----> 2CaF2 + 6SiF4 +3H2O
1CaSiO3 + 6HF ----> 1CaF2 + 1SiF4 +3H2O
33
What is combustion (chemistry definition)?
the process of burning something
Molecules with F and H react with O2 to produce SO4 and H2O
An explosion (see pic)
Molecules with C and H react with O2 to produce CO2 and H2O
34
What is the formula for calculating formal charge of an element?
# of valence electrons - lone pairs - #of bonds
(Tests) * (Homework) = stress
# of valence electrons - # of protons - #of bonds
(inverse of matrix A) * (matrix B) = [c]
35
What type of bonding is this (see image):
Covalent
Non-polar ionic
Polar ionic
Ionic
36
What is the Electron Configuration of No
nothing, it is no
[Rn]5f^14 6d^1 7s^2
[Rn]5f^13 6d^1 7s^2 <--- LOOK CLOSELY BEFORE YOU PICK THIS
[Xe]5f^14 6d^1 7s^2
37
What is this?
An explosion
synthesis
Combustion
Decomposition
38
Okay. Back to studying. Next Question: What is a hydrogen bond?
Weakest out of all intermolecular forces
Where hydrogen bonds with O, F, or N of another molecule
Governmental bonds given out by hydrogen
A bond of hydrogen
39
What is decomposition?
When an molecule reacts that leads to being broken down
When an element reacts that leads to being broken down
When a molecule reacts that leads to being broken up
When molecule reacts that leads to being broken upside-down
40
Are you ready for Quiz? MAKE SURE TO PAY ATTENTION TO EVERYTHING! Work Together for puzzle :)
I JUST want to sleep
Lets do this!
Wait is something hidden in the kahoot? At the End?
I can't wait to study, so I can get an A!
41
Rank the intermolecular forces (that we know of) by strength correctly using appropriate sign:
Hyrdogen > dipole dipole >> dispersion
Hyrdogen > london >> dipole dipole
hydrogen = dispersion = dipole dipole
Hyrdogen > dipole dipole <> dispersion
42
Do you need to balance equations in order to figure out what type of reaction it is?
No? (remember to always be confident in your answers or else
Yes!
No!
Maybe, both yes and no options make strong cases
43
Balance Reaction shown in the Picture --->
CH4 + 3O2 ----> CO2 + 2H2O
CH4 + 3O2 ----> CO2 + 4H2O
CH4 + 2O2 ----> CO2 + 2H2O
2CH4 + 4O2 ----> 2CO2 + 4H2O
44
What is the Mole Method?
coefficients in equation can be interpreted as # of moles
moles in equation can be interpreted as # of coefficients
protons in elements can be interpreted as # of electrons
45
What is a polyatomic ion?
An ion made of many atoms
a ionic molecule with net positive or negative charge
a covalent molecule
a covalent molecule with net positive or negative charge
46
Memorize This Pic ---->
Remember do not trust everything you see online kids
Please pick me, or you will lose points
This tells you how to go from grams, to moles, to # of atoms
This is the right answer*
47
What is the misconceived idea of the scientific method?
Follows steps: Make observation, hypothesis, and then test
There is no misconecption of the procedure.
The procedure should be logical/systematic
The procedure is one great flow chart like in the picture.
48
What is a mole?
Spy who over a long period has an important position in gov
A creature that is blind and digs tunnels underground
A unit for conversion
Mexican sauce made from chili peppers, chocolate on meat
49
If I disagree with a major theory that would disrupt the scientific world that would be....?
Fundamental scientifc controversy
Confict over ethicality of methods
Confict over ethicality of methods
Confict over ethicality of methods
50
An isotope of an element is ...?
Same number of protons, but not neutrons
nothing different from the element
Same number of neutrons, but not protons
Same number of neutrons, but not electrons
51
Organic Chemistry is ...
Stuff for bonus points maybe, not on test so do not care.
study of structure, properties, & reactions of organic stuff
Organic stuff is organic compounds but ran out of room
Whole Foods!
52
If I disagree with the
APPLICATIONS
of the use of the science then this is...?
Conflict over applications
Confict over ethicality of methods
Confict between scientifc idea and non-scientific viewpoint.
Secondary scientifc controversy
53
What is net dipole force?
A net used to catch the dipoles
General direction in which electrons are pushed away from
General direction in which the electrons are attracted to
General direction in which the protons are attracted to
54
What is the shape of a s orbital?
Squareish
Spherical
Squarical
Circle
55
How ma
N
y sig figs in 9310.00
7
4
3
6
56
Why is the Flat Earth idea, presented in the video, not scientific?
No false balance at all in the video
Tons of logical ideas that were put forth
Made by credible scientists, definitely.
Little evidence to back it up :(
57
1 mole == ?
6.02x10^-23
1 blind brown creature that digs tunnels
6.02x10^23
-602x10^23
58
Can you Freeze Time? Question number - 7 = ----
Hmm, where have I seen this before?
R286IGh0dHBzOi8vZG9jcy5nb29nbGUuY29tL2RvY3VtZW50L2QvMWx
pdD91c3A9c2hhcmluZw==
HX1RVTE4ya1pMYXY3cEMyZ1M1aE9ORU83Smo5bERyd0FtUjl3MjNCTjgvZWR
59
Where M is mAss, V is volume, and D is Density. All of these are true except:
M=DV
V = M/D
V = D/M
D = M/V
60
Now, just do some practice of this (actually do problems) and you are all set! YAY!
Well, this was a waste of time. I do not need to study
Must study all night long, no sleep!!!
who cares about this class, not AP credit
Thank you and now I will go study some more problems
61
What is a non-polar (covalent) molecules?
A molecule that is found at the poles of non-space
Has an aysmmetrical bond
Molecule has no net dipole, & no forces effecting electrons
A polar bond
62
What is percent composition?
The percent by mass of an element in a compound
The percent of the total mass of an element in a compound
The total mass of an element in a compound
The percent by mass of a molecule in a compound
63
What is Stoichiometry?
Quantitative study of reactants and products in a reaction
A horrible, horrible thing. *flees room*
Qualitative study of reactants and products in a reaction
The thing chemistry is infamous for
64
What is percent yield?
((mass of actual yield) / (mass of theoretical yield)) * 100
a percentage of yield
the percentage of the product after a chemical reaction
65
Why are molecules polar?
Molecules being more electronegative & attracting electrons
I do not care
Elements being more electronegative & attracting electrons
Elements being more electropositive & attracting electrons
66
H
O
w many sig figs in 90
1
3
5
2
67
Who is your favorite teacher?
Just Singleton
Just Singleton
Just Singleton
Just Singleton
68
What is a valence electron?
The electron(s) in the outermost shell
The electron in the outermost shell
The electrons in the innermost shell
An Electron
69
If I disagree with you about gene editing over ethics, this is what type of controversy?
Confict over applications
Secondary scientifc controversy
Confict over ethicality of methods
Confict between scientifc idea and non-scientific viewpoint.
70
What is single replacement?
The getting rid of and replacement of single objects
A dance
A molecule starts out alone, then replaces another element
The replacement of a single electron by a proton
71
What is Avogadro's number?
602x10^23
6.02x10^23
6.0.2x10^23
6.02x10^24
72
Does geometry of molecule affect and determine polarity of a molecule?
No, cause geometry is math, and math is not science
Yes, so I should definitely study the geometry of molecules
Neurtal/Can't decide, both options make good claims
73
Atomic Mass is ...
Average Mass of atom
Weight of an atom
Average mass of all of that atoms in the world
the mass of an atom
74
What is a covalent bond?
A bond that shares electrons
A bond of sharing everything
A bond that shares neutrons
A bond that shares neutrons
