NEW
Font size
S
M
L
XL
WorksheetsChem Final Review
Total questions: 56
Worksheet time: 10hrs 8mins
Name
Class
Date
1.
Which is the heaviest?
a)
gamma ray
b)
beta particle
c)
alpha particle
d)
proton
2.
True/False: Unstable nuclei can break apart spontaneously changing the identity of atoms.
a)
True
b)
False
3.
When an atom splits
a)
fusion
b)
fission
c)
decay
4.
An alpha particle is
a)
an electron
b)
a Helium atom
c)
a Hydrogen
d)
a neutron
5.
True/False: Both fission and fusion reactions release large amounts of energy.
a)
True
b)
False
6.
Which of the following does not affect reaction rates
a)
reactivity
b)
concentration
c)
surface area
d)
color
7.
Arrhenius acid
a)
H+ donor
b)
electron-pair acceptor
c)
H+ producer
d)
none of these
8.
Bronsted-Lowry Base
a)
OH- producer
b)
H+ acceptor
c)
electron-pair donor
9.
A strong acid makes
a)
a weak conjugate acid
b)
a strong conjugate base
c)
a weak conjugate base
d)
none of these
10.
A solution with [H+] = 1.0 x 1013
a)
is acidic
b)
is basic
c)
is neutral
d)
unable to determine
11.
pH + pOH =
a)
1
b)
7
c)
14
d)
42
12.
A neutralization reaction produces
a)
carbon dioxide and water
b)
a salt and water
c)
H and OH
d)
varies for every reaction
13.
Molarity =
a)
mol solute/kg solvent
b)
mol/L
c)
g/mL
d)
grams/mol
14.
PV = nRT, n is
a)
Avogadro's number
b)
moles
c)
neptune
d)
gas law constant
15.
A saturated solution
a)
can hold more solute
b)
has the maximum amount of solute dissolved
c)
has more solute dissolved than can normally be dissolved
d)
is unstable
16.
A reaction that gets warmer as it runs is
a)
endothermic
b)
exothermic
c)
ectothermic
d)
at eqilibrium
17.
How many hydrogen atoms are in one molecule of Ammonium Sulfite (NH4)2SO3?
a)
6.02 x 1023
b)
2
c)
4
d)
8
18.
How many water molecules are in 5.2 moles of water?
a)
6.02 x 1023
b)
5.2
c)
3.1304 x 1024
d)
8.638 x 10-24
19.
How many grams are in 1.5 moles of O?
a)
9.03 x 1023 grams
b)
16 grams
c)
24 grams
d)
6.02 x 1023 grams
20.
What are the coefficients needed to balance the equation?
___ C2H6 + ___ O2 ------ ___CO2 + ___ H2O
___ C2H6 + ___ O2 ------ ___CO2 + ___ H2O
a)
1,5,2,3
b)
1,2,2,3
c)
2,7,4,6
d)
2,6,4,6
21.
What is the molar mass of C6H12O6?
a)
180.18
b)
180.12
c)
180.24
d)
180.06
22.
2H2 + O2 −−〉 2H2O
3.91 g O2 −−〉g H2O
3.91 g O2 −−〉g H2O
a)
1.905
b)
4.4
c)
2.2
d)
1.1
23.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
24.
What is 0 Kelvin known as
a)
No such thing
b)
Very cold
c)
Freezing point of Water
d)
Absolute Zero
25.
Pressure is a direct result of collisions between gas particles and the walls of their container.
a)
TRUE
b)
FALSE
26.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
27.
Which of the following is NOT a unit of pressure?
a)
Torr
b)
mL
c)
psi
d)
kPa
28.
In the ideal gas law, which variable represents the gas constant?
a)
n
b)
R
c)
T
d)
V
29.
All matter consists of tiny particles that are in constant motion is referred to as __________
a)
Kinetic Energy
b)
Kinetic molecular theory
c)
absolute zero
d)
Pressure
30.
Three factors that influence gas pressure are
a)
Volume, temperature and number of particles
b)
Pressure, gas particles and volume
c)
Number of gas particles, volume and speed of particles
d)
None of the above
31.
When a solvent contains as much of the solute as it can hold, the solution is said to be
a)
supersaturated
b)
diluted
c)
saturated
d)
unsaturated
32.
What is the difference between concentration and saturation?
a)
concentration is a fixed % and saturation refers to amount of solute dissolved
b)
concentration refers to amount of solute dissolved and saturation is a fixed %.
c)
Nothing
d)
All of the above
33.
The ___ is the thing being dissolved in a solution.
a)
solute
b)
solvent
c)
substance
d)
stuff
34.
How many grams of ammonium chloride are needed to make a saturated solution at 80o C?
a)
50 grams
b)
80 grams
c)
65 grams
d)
75 grams
35.
At 40oC which salt is least soluble?
a)
KClO3
b)
NaCl
c)
KI
d)
KNO3
36.
In an exothermic process, the surroundings are are gaining energy.
a)
True
b)
False
37.
The specific heat is the amount of energy needed to raise the temperature one degree Celsius of a substance.
a)
True
b)
False
38.
As a reaction is taken place, the student notices that the temperature has dropped. This indicates that the system has increased in energy. What type of process is this?
a)
Endothermic
b)
Exothermic
39.
What type of reaction is pictured behind?
a)
endothermic
b)
exothermic
40.
H2 + Cl2 --> 2 HCl + 1845 kJ
Is this reaction endothermic or exothermic?
Is this reaction endothermic or exothermic?
a)
Endothermic
b)
Exothermic
41.
ΔH value in an endothermic reaction is a positive number.
a)
True
b)
False
42.
Heat always flows from a warmer object to a cooler object.
a)
True
b)
False
43.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
44.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
45.
Electrolyte
a)
Acids
b)
Bases
c)
Salts
d)
All
46.
Feels slippery.
a)
Acids
b)
Bases
c)
All
47.
Changes the color of indicators.
a)
Acids
b)
Bases
c)
All
48.
pH greater than 7.
a)
Acids
b)
Bases
c)
All
49.
If you neutralize an acid with a base what will be produced?
a)
Sugar and water
b)
Sugar and salt
c)
Salt and water
d)
Water
50.
What is the name of this ion: H3O+?
a)
helium ion
b)
hydrogen ion
c)
hepatic ion
d)
hydronium ion
51.
A solution with [H+] = 1.0 x 1013
a)
is acidic
b)
is basic
c)
is neutral
d)
unable to determine
52.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
53.
In the Bronsted Lowry theory, an acid is :
a)
a proton donor
b)
a proton acceptor
c)
an H donor
an electron acceptor
an electron acceptor
54.
What is NH3 acting as in the included equation?
a)
Acid
b)
Base
c)
Conjugate acid
d)
Conjugate base
55.
What is NH4+ acting as in the included equation?
a)
Acid
b)
Base
c)
Conjugate acid
d)
Conjugate base
56.
Since water can act as an acid or a base, it is called _____.
a)
switch-hitter
b)
amphoteric
c)
weird
d)
conjugate
Reset
