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Chemistry Final Review
Chemistry Final Review
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CHEM FINAL REVIEW!!!!!!!!! GOOD LUCK ON FINALS :) :) :) #chemistry
Flashcards
45 cards
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Practice quiz
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Questions
45
Answers
1
What is Avogadro’s number?
22.4
6.02 x 1023
101.3
12.01
2
Molarity= moles / liters
0.45M
0.15M
6.67M
1.58M
3
How many liters is 3 moles of H
2
? (at STP)
89.6 L
44.8 L
67.2 L
22.4 L
4
UGK
(short for
Underground Kingz
) was an American hip hop duo from the South. Who was in UGK?
Bun B & Pimp C
Andre 3000 & Big Boi
Birdman & Mannie Fresh
Talib Kweli & Mos Def
5
Who was first to win a Grammy award for rap artists?
DJ Jazzy Jeff and the Fresh Prince
Jay-Z & Kanye West
Tupac
RUN DMC
6
3 Step Stoichiometry! (Mass-> moles-> Mass)
10.8g NH3
16.2 g NH3
30.6 g NH3
35.9 g NH3
7
Pressure = P
1
+ P
2
+ P
3
150 atm
200 atm
100 atm
50 atm
8
Matter is anything that has _____ and takes up _____.
weight;mass
weight; volume
volume;space
mass; space
9
Which type of reaction always involves an element and a compound?
synthesis
double-replacement
decomposition
single-replacement
10
In a physical change/chemical reaction mass is conserved. This means matter is neither _ nor _
real;imagined
heated;cooled
created;destroyed
positive;negative
11
How many neutrons are in the atom:
118
79
98
197
12
Which well-known music artist married Aaliyah when she was just 15 years old?
Damon Dash
P. Diddy
R. Kelly
Timbaland
13
What is the electron configuration of oxygen?
1s2 2s2 2p2
1s2 2s2 2p4
1s2 2s2 2p6 3s2
1s2 2s2 2p6
14
How many centimeters are in 5.36 m?
536 cm
53.6 cm
53,600 cm
5,360 cm
15
The pressure of a gas can be increased by _____ its volume.
equaling
decreasing
increasing
changing volume will not change pressure
16
What kind of bond do two nonmetals form?
ionic
covalent
decomposition
metalloidic
17
How many valence electrons does gallium have?
6
7
3
2
18
If a sample of C-14 was originally 600 g, and is now 75 g, how many half-lives have passed?
2
3
4
1
19
.
miscible
supersaturated
saturated
unsaturated
20
Which of the following is a heterogeneous mixture?
chicken soup
gasoline
orange juice
vinegar
21
What is the pH of a solution with a [H+] of 1 × 10
-7
M? **Remember pH=-log[H+]**
6
7
5
8
22
Remember R=0.0821 & The ideal gas law equation is PV=nRT
212 mol CH4
1,543mol CH4
1.53 x 103 mol CH4
1.28 x 106 mol CH4
23
What is the term for an atom or group of atoms that has a positive or negative charge?
element
ion
compound
alpha particle
24
Which of the following is NOT a physical property?
state
melting point
ability to rust
color
25
What nuclear particle is represented by the following? (Nuclear Decay!)
gamma
positron
alpha
beta
26
Which state of matter has a definite volume but an indefinite shape?
liquid
none of the above
gas
solid
27
Who was one of the first well-known trap music artists?
Young Jeezy
Three 6 Mafia
Rick Ross
T.I.
28
Which new big name artist is signed to Drake's OVO music label?
Tory Lanez
PartyNextDoor
The Weeknd
Bryson Tiller
29
Which of the following is the proper way to express 0.000456 in scientific notation?
4.56× 104
4.56× 10-4
456
4.564
30
Which element is the most electronegative?
S
F
Cl
O
31
The octet rule states that atoms tend to achieve the electron configuration of a _____.
halogen
noble gas
alkali metal
pnictogen
32
A pressure gauge records a pressure of 450 kPa. What is this expressed in atmospheres?
1.3
4.4
2.3
100
33
Electrons are found _____ the nucleus and have a _____ charge.
outside;negative
outside;positive
inside;positive
inside; negative
34
Remember that Q=mc∆T
146J
77J
0.45J
278J
35
What are the coefficients needed to balance the following equation?
2,2,1,5
1,5,3,4
3,1,2,5
1,2,3,4
36
An electron moves higher level of energy → lower level of energy, emits energy in the form of _
heat
electricity
light
chemical energy
37
What products are usually produced in a combustion reaction?
CO2 and H2O
CO and CO2
COand H2O
Co and CO
38
An ionic bond is formed between what two types of elements?
two nonmetals
a metal and a nonmetal
two metals
two metalloids
39
If the temperature of a gas is increased at constant volume, the pressure will_____.
a temperature change will not affect
stay the same
increase
decrease
40
Identify the type of reaction in the equation below.
double-replacement
single-replacement
decomposition
synthesis
41
Isotopes are atoms of the same _____ that have different numbers of _____.
family;valence electrons
element;neutrons
family;electrons
element;protons
42
How many moles of aluminum are needed to form 3.7 mol Al2O3.
7.4 mol Al
1.6mol Al
3.2mol Al
4mol Al
43
What is the triple point on a phase diagram?
the point where a solid changes to a liquid
the point beyond which a liquid cannot exist
point where a solid, liquid, and gas can all exist together
the boiling point of a liquid
44
What is the percent composition of potassium in K
2
CrO
4
? (molar mass 194.19g/mol)
40.3%
32.9%
26.8%
54.7%
45
Name the following compound: P
4
O
6
phosphorus oxite
tetraphosphorus hexaoxite
phosphorus oxide
tetraphosphorus hexaoxide
