stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Final Exam Review Chemistry Flashcards | StudBud
Explore
/
Final Exam Review Chemistry
Final Exam Review Chemistry
53 terms
·
StudBud Administration
·
1,357 plays
Final exam review for College Prep Chemistry
Flashcards
53 cards
F
Practice quiz
P
Host live
L
Questions
53
Answers
1
CH
4
+ 2 O
2
--> 2 H
2
O + CO
2
[16 g of CH
4
reacts and actually produces 41g CO
2
. What is % yield?]
39%
2.6%
93%
1.1%
2
2 Al + 3 CuSO
4
--> Al
2
(SO
4
)
3
+ 3 Cu [how many grams of Cu form from reaction of 51g of Al?]
2.8 g
0.045 g
180 g
81 g
3
What are the missing coefficients for the equation: Cr + Fe(NO
3
)
2
--> Fe + Cr(NO
3
)
3
4,6,6,2
2,3,2,3
2,3,3,2
1,3,3,1
4
The equation Mg + 2HCl --> MgCl
2
+ H
2
is an example of what type of reaction?
decomposition
double-replacement
combination
single-replacement
5
Answer the following question using a gas law:
5.15 L
2.00 L
4.35 L
2.19 L
6
If pressure of a gas is increased and volume is constant, what will happen to temperature?
increase
decrease
stay the same
7
How many valence electrons are in an atom of magnesium?
3
2
5
4
8
Answer the following gas law problem
.0329 kPa
.0658 atm
.0329 atm
.0658 kPa
9
Which of the forces of intermolecular attraction are the weakest?
dipole-dipole
ionic bonding
london dispersion
hydrogen bonding
10
True or false: A double bond involves two pairs of electrons
False
True
11
In the reaction 2CO + O
2
--> 2CO
2
what is the ratio of moles of oxygen to moles to CO
2
?
1:1
2:2
2:1
1:2
12
If 3.0 L of helium at 20.0° C is allowed to expant to 4.4 L, what is the new temperature?
-30°C
430°C
702°C
157°C
13
How many valence electrons are in an atom of phosphorus?
4
2
5
3
14
What is the chemical name for the compound with the formula Na
2
S?
Sodium fluoride
Sodium Sulfide
Lithium Oxide
Magnesium fluoride
15
If pressure is constant, the relationship between temperature and volume is
direct
inverse
16
How do gas particles respond to an increase in volume?
decrease in kinetic energy and decrease in pressure
increase in kinetic energy and increase in temperature
increase in temperature and increase in pressure
incrase in kinetic energy and decrease in temperature
17
One way to increase the pressure of a gas is to
increase volume
increase the number of gas particles
decrease temperature
lower the kinetic energy of gas molecules
18
The octet rule states that, in chemical compounds, atoms tend to have ____
the electron configuration of a noble gas
more electrons than protons
eight electrons in their principal energy level
more protons than electrons
19
True or false: N
2
is an example of a compound with a triple bond
False
True
20
Which of the following covalent bonds is most polar?
H-F
H-N
H-H
H-C
21
How many grams of O
2
are produced if 11.5 g NO
2
are formed? 2Pb(NO
3
)
2
--> 2PbO + 4NO
2
+ O
2
2.88 g
1.00 g
32.0 g
2.00 g
22
The shape of methane, CH
4
, is:
square
tetrahedral
bent
trigonal planar
23
Cobalt (III) chloride reacts with lithium hydroxide in double replacement: which is a product?
Co(OH)3
LiCl3
Co(OH)2
LiCo3
24
Given the reaction 2H
2
+ O
2
--> 2 H
2
O .......
19.25 L
77 L
110 L
61 L
25
What are the coefficients that will balance the equation: AlCl
3
+ NaOH --> Al(OH)
3
+ NaCl?
3,1,3,1
1,3,1,3
1,1,1,3
1,3,3,1
26
Nitrogen tri-chloride has the following VSEPR shape:
trigonal planar
trigonal pyramidal
tetrahedral
bent
27
At STP, how many liters of oxygen will react with 3.6 liters of hydrogen? 2H
2
+ O
2
--> 2H
2
O
2.4 L
1.8 L
3.6 L
2.0 L
28
Us the activity series to predict the products of: Ag + KNO
3
--> _____
No reaction
AgKNO3
AgNO3 + K
AgK + NO3
29
What causes dipole-dipole interaction?
attractions between ions
attractions between polar molecules
bonding of a covalently bonded hydrogen to electrons
sharing electron pairs
30
If temperature is constant, the relationship between pressure and volume is
inverse
direct
31
What are the coefficients that will balance the equation: N
2
+ H
2
--> NH
3
1,3,3
1,3,2
1,1,2
3,1,2
32
A molecule with a single covalent bond is:
Cl2
CO2
N2
CO
33
Carbon Monoxide has the following VSEPR shape
trigonal planar
tetrahedral
bent
linear
34
2 H
2
+ O
2
--> 2 H
2
O [what mass of water is produced from 2.0 mol of H
2
]
36 g
9 g
32 g
18 g
35
Which of the following elements does NOT form an ion with a charge of +1?
potassium
sodium
fluorine
hydrogen
36
Which statement is true if 12 mol of CO and 12 mol of Fe
2
O
3
react? 3CO + Fe
2
O
3
--> 2Fe + 3CO
2
the limiting reactant is CO and 8.0 mol of Fe will be formed
The limiting reactant is Fe2O3 and 24 mol of Fe will form
The limitng reactant is Fe2O3 and 36 mol of CO2 will form
the limiting reactant is CO and 3.0 mol of CO2 will form
37
How many moles of aluminum are needed to react completely with 1.2 mol of FeO? (*mole ratio*)
0.8 mole
1.6 mol
1.2 mole
2.4 mol
38
According to VSEPR, molecules adjust their shapes to keep ___ as far apart as possible
mobile electrons
inner shell electrons
pairs of valence electrons
electrons closest to the nuclei
39
How much PH
3
is formed if you have 6.2 g of P
4
and 4.0 g of H
2
: P
4
+ 6H
2
--> 4PH
3
270 g
6.8 g
.43 g
45 g
40
Carbon dioxide has the following VSEPR shape and polarity
Bent, non-polar
Linear, Non-polar
Linear, polar
Bent, Non-polar
41
What is % yield if 9.9 g Pb(NO
3
)
2
are heated &give 5.5 g of PbO? 2Pb(NO
3
)
2
--> 2PbO + 4NO
2
+ O
2
56%
67%
82%
44%
42
A covalent bond in which electrons are shared unequally is:
Polyatomic
Ionic
A double bond
Polar
43
What is the coefficient for Cl
2
in the equation: Fe + Cl
2
--> FeCl
3
2
4
1
3
44
What is the coefficient for HCl in the equation: Mg + HCl --> MgCl
2
+ H
2
2
1
6
3
45
What is a double bond?
A bond between two atoms and six electrons
Two pairs of electrons shared between four atoms
Two pairs of electrons shared between two atoms
One pair of electrons shared between two atoms
46
What are standard temperature and pressure conditions for gases?
0° and 0 torr
0 K and 760 Torr
0°C and 760 torr
-273°C and 1 atm
47
Given the equation 2 H
2
+ O
2
--> 2H
2
O ........
8.15 L
19.30 L
8.15 mL
4.075 L
48
What is the formula for sodium nitride?
NaN3
NaN
Na2N
Na3N
49
The equation H
3
PO
4
+ 3KOH --> K
3
PO
3
+ 3H
2
O is what type of reaction?
double-replacement
single-replacement
synthesis
decomposition
50
True or false: Hydrogen bonding results in low surface tension because it is the weakest IMF
False
True
51
The reaction 2Fe + 3Cl
2
--> 2FeCl
3
is an example of which type of reaction?
synthesis
combustion
decomposition
single-replacement
52
When aluminum nitrate reacts with lithium sulfate, the correct products would be:
AlLi2 and SO4(NO3)3
Al(NO3)3 and Li2SO<font size="2">4</font>
AlSO4 and Li2(NO3)3
Al2(SO4)3 and LiNO3
53
A chemical bond that is formed when two atoms share electrons is called a(n):
ionic bond
polyatomic bond
covalent bond
compound
