WorksheetsSpring Final Exam Review
Total questions: 60
Worksheet time: 30mins
Name
Class
Date
1.
FIRST name
4 lines
2.
LAST name
4 lines
3.
Class Period
a)
5th Period
b)
6th Period
c)
2nd period
d)
3rd Period
e)
4th Period
4.
What group is the least reactive group of elements on the periodic table?
a)
alkali metals.
b)
halogens.
c)
noble gases.
d)
transition metals.
e)
None of these are correct
5.
The process that occurs on the sun that creates all of the elements in the universe is called fusion.
a)
True
b)
False
6.
How many protons does Iodine have?
a)
127
b)
74
c)
53
d)
None of these are correct
7.
Which of the following atomic particles are contained in the atom’s nucleus and are most of the mass of the atom?
a)
Protons and electrons
b)
Protons and neutrons
c)
Neutrons and electrons
d)
Protons, neutrons and electrons
8.
Which of the following is the typical charge on the ion formed by fluorine?
a)
+1
b)
-1
c)
+7
d)
-7
e)
+9
9.
The law of conservation of mass states that?
a)
All matter must be created or destroyed
b)
Matter can be reacted or synthesized
c)
Matter can't be created or destroyed
d)
All matter must be reacted and destroyed
e)
None of these are correct
10.
A triple bond is when two atoms share______ electrons.
a)
Three
b)
Four
c)
Six
d)
Eight
e)
None of these are correct
11.
What is the molecular formula of the compound shown below?
a)
C₅H₈O
b)
C₄H₁₀O
c)
C₅H₁₀O₂
d)
C₅H₁₀O
e)
None of these are correct
12.
You can smell molecules when they are in what phase?
a)
Gas
b)
Liquid
c)
Solid
d)
Aqueous
e)
All of the above
13.
We call altering the form of a substance, but not changing its identity
a)
Physical change
b)
Chemical Change
c)
Endothermic Change
d)
all of the above
14.
When a chemical reaction happens and it creates a new substance.
a)
Physical change
b)
Chemical Change
c)
Phase Change
d)
all of the above
15.
Which diagram best illustrates how air rises over a mountain to produce precipitation?
a)
Mountain 1
b)
Mountain 2
c)
Mountain 3
d)
Mountain 4
16.
_____________ use maps to keep track of atmospheric conditions to predict weather.
a)
Biologists
b)
Pharmacists
c)
Meteorologists
d)
Physicists
17.
The density of water is always:
a)
0.92 g/ml
b)
1 g/ml
c)
5 g/ml
d)
does not exist
18.
The equation below would be classified as what type of a reaction?
a)
Double Replacement
b)
Single Replacement
c)
Synthesis
d)
Decomposition
19.
The equation below would be classified as what type of a reaction?
a)
Double Replacement
b)
Single Replacement
c)
Synthesis
d)
Decomposition
20.
The equation below would be classified as what type of a reaction?
a)
Double Replacement
b)
Single Replacement
c)
Synthesis
d)
Decomposition
21.
The numbers we put in front of chemical formulas, when balancing, are called _______.
a)
Subscripts
b)
Superscripts
c)
Coefficients
d)
Charges
e)
22.
The molar mass of an element is numerically the same as the:
a)
Atomic Weight
b)
Element Charge
c)
Atomic Number
d)
Group Number
e)
23.
If, (C = 12 g/mol, H= 1 g/mol, O = 16 g/mol), then what is the molar mass of C₂H₆O ?
a)
29 g/mol
b)
38 g/mol
c)
46 g/mol
d)
62 g/mol
24.
Molarity is calculated by:
a)
moles of solute / liters of solution
b)
moles of solvent / liters of solute
c)
moles of solution / liters of solvent
d)
liters of solution / moles of solvent
25.
Using the pH scale which values are associated with an Acid?
a)
7
b)
7-14
c)
1-6.9
26.
A strong acid or strong base have this in common when in solution:
a)
Slightly Dissociate
b)
Stongly Dissociate
c)
No Dissociation
d)
All of the options
27.
The following acid base reaction reaction is also known as a:
a)
Neutralization reaction
b)
single replacement
c)
density
d)
blood-buffer
28.
When sodium bicarbonate and calcium chloride dissolves in water in a plastic pouch, the pouch becomes cold because
a)
equilibrium process
b)
exothermic process
c)
endothermic process
d)
reversibile process
29.
Which of these conditions is always true for an
endothermic process?
a)
The temperature decreases during the process
b)
Molecules move more slowly at the end of the process
c)
Energy is transferred to the environment
d)
A chemical reaction occurs
e)
All of the above
30.
When water freezes in the freezer
a)
heat is transferred into the water
b)
heat is transferred out of the water
c)
the internal energy increases
d)
the internal energy stays the same
31.
Which requires more energy?
a)
heating 100 g of water from 20 °C to 40 °C
b)
heating 10 g of water from 20 °C to 80 °C
c)
heating 50 g of water from 20 °C to 30 °C
d)
heating 400 g of water from 10 °C to 20 °C
32.
When visible light strikes a mirror, the light is mostly...
a)
absorbed by the mirror
b)
transmitted by the mirror
c)
absorbed and transmitted by the mirror
d)
reflected by the mirror
33.
Which of these processes will result in an increase of the speed of the process?
a)
use cool water to dissolve sugar crystals
b)
crush charcoal into smaller pieces before lighting
c)
decrease the concentration of detergent to remove a stain
d)
put a rusty nail in a small container sealed with a lid
34.
Which of these is best classified as energy as opposed to matter?
a)
safety match
b)
potassium chlorate
c)
fireworks
d)
light
35.
Which is NOT a way to increase a rate of a reaction.
a)
add heat
b)
add pressure
c)
increase the size
d)
use a flashlight
36.
What does the second law of thermodynamics state?
a)
energy is conserved
b)
energy can not be created nor destroyed
c)
energy travels from hotter object to colder object
d)
energy travels from colder object to hotter object
37.
Spectroscopy is a method that can be used to determine
a)
speed of light
b)
density
c)
concentration
d)
mass
38.
Chemical reactions that can proceed in both the forward and reverse directions
are called
a)
equilibrium processes.
b)
reversible reactions
c)
combustion reactions.
d)
redox reactions.
39.
Which of these is not immediately reversible?
a)
evaporation of water
b)
dissociation of sodium chloride in solution
c)
combustion of methanol
d)
oxidation of lead
40.
When a chemical equilibrium occurs when
a)
the concentration of products is equal to the concentration of starting substances
b)
the process reaches an endpoint and stops.
c)
the starting substances reach their maximum concentration.
d)
the forward process and the reverse process occur at the same rate
41.
Which of these changes does not affect the equilibrium of a reversible process?
a)
increasing the concentration of products in solution
b)
increasing the temperature of a solution
c)
increasing the amount of a solid reactant
d)
increasing the pressure on a process that produces a gas
42.
The equilibrium constant is always written as a ratio of
a)
Products over Reactants
b)
Reactants over Products
c)
Products minus Reactants
d)
Reactants minus Products
43.
The Ks of the indicator alizarin yellow is 1 × 10⁻¹¹. At about what pH value will
the indicator change color?
a)
pH = 3
b)
pH = 7
c)
pH = 10
d)
pH = 11
44.
A large equilibrium constant value means that the
a)
reaction is complete
b)
reaction is favoring the products
c)
the reaction is favoring the reactants
45.
All physical processes are reversible.
a)
True
b)
False
46.
For the cabbage juice indicator, what might be the pH of the solution when the color is red?
a)
2
b)
7
c)
9
d)
12
47.
Which of these is a reversible process?
a)
lighting a sefety match
b)
burning a log on a fire
c)
water freezing to become ice
d)
baking a cake
48.
Which correctly describes a reversible process?
a)
the forward and reverse reactions can occur at the same time
b)
a reversible process proceeds in both forward and reverse directions
c)
In a reversible chemical reaction system, the products and the starting substances are both present
d)
All of the above
49.
What is this?
a)
Beaker
b)
Bunsen burner
c)
Erlenmeyer flask
d)
Graduated cylinder
e)
Scoopula
50.
What is this?
a)
Erlenmeyer flask
b)
Bunsen burner
c)
Graduated cylinder
d)
Scoopula
e)
Funnel
51.
What is this?
a)
Graduated cylinder
b)
Bunsen burner
c)
Erlenmeyer flask
d)
Scoopula
e)
Funnel
52.
What is this?
a)
Funnel
b)
Bunsen burner
c)
Erlenmeyer flask
d)
Graduated cylinder
e)
Scoopula
53.
What is this?
a)
Pipette
b)
Bunsen burner
c)
Erlenmeyer flask
d)
Graduated cylinder
e)
Scoopula
54.
What is this?
a)
Test tubes
b)
Bunsen burner
c)
Erlenmeyer flask
d)
Graduated cylinder
e)
Scoopula
55.
What is this?
a)
Bunsen burner
b)
Erlenmeyer flask
c)
Graduated cylinder
d)
Scoopula
e)
Funnel
56.
What is this?
a)
Scale
b)
Erlenmeyer flask
c)
Graduated cylinder
d)
Scoopula
e)
Funnel
57.
The molecular formula of a molecule is more detailed than the structural formula.
a)
True
b)
False
58.
Knowing the number of valence electrons can help you determine the charge of an ion.
a)
True
b)
False
59.
Good lab attire includes, tying back long hair, wearing goggles, and baggy clothing.
a)
True
b)
False
60.
The periodic table is not very important.
a)
True
b)
False
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