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Semester 2 Chem Final Exam Review

Total questions: 96

Worksheet time: 1hrs 29mins

Name
Class
Date
1.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
2.
How many carbon atoms are in propane?
a)
1
b)
2
c)
3
d)
4
3.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
4.
At which pipe: M or N are hydrocarbons with lower boiling points collected?
a)
M
b)
N
5.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
6.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
7.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
8.
Which of the following would have the highest melting point?
a)
C3H8
b)
C4H8
c)
C5H12
d)
C22H44
9.
Which of the following could contain a triple bond?
a)
C4H10
b)
C4H8
c)
C4H6
d)
C4H12
10.
Which one of the following is saturated?
a)
water
b)
C4H8
c)
C4H10
d)
C5H8
11.
Which of the following does not contain only carbon and hydrogen
a)
alkanes 
b)
alkenes
c)
alkynes
d)
alkanols
12.

What term describes alkene molecules that contain a C=C double bond?

a)

saturated

b)

unsaturated

13.

Alkanes have the general formula:

a)

CnH2n

b)

CnH2n+1

c)

CnH2n+2

d)

CnHn

14.

What process is used to separate crude oil in hydrocarbons with different chain lengths?

a)

distillation

b)

fractional distillation

c)

cracking

d)

polymerisation

15.

Where in the fractionating column are shorter chain hydrocarbon molecules obtained?

a)

At the top

b)

At the bottom

16.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

17.

What does a fuel react with when it burns?

a)

oxygen

b)

water

c)

carbon dioxide

d)

methane

18.

Name the following hydrocarbon

a)

alkane

b)

pentene

c)

pentane

d)

alkene

19.

Name the following hydrocarbon

a)

butane

b)

hexane

c)

heptane

d)

hexene

20.

C10H22 --> C5H12 + C3H6 + ?

a)

C2H4

b)

C3H4

c)

CO2

d)

CH4

21.

Name this compound

a)

methane

b)

propane

c)

ethane

d)

ethene

22.

C4H10 is an example of a _________________.

a)

molecular formula

b)

full structural formula

c)

shortened structural formula

d)

ball-and-stick model

23.

What is the ending (suffix) for single bonded hydrocarbons?

a)

-yne

b)

-ene

c)

-ane

d)

-one

24.
How many carbons are in the backbone (longest chain) of this organic compound: 2,3,3-triethyl-4-nonene
a)
2
b)
6
c)
7
d)
9
25.

The fuel manufactured from plants is called

a)

Biodiesel

b)

Organic diesel

c)

biogasoline

d)

methane

e)

None of the above

26.

The branch of hydrocarbons that form multi-sided rings are called

a)

Cycloalkanes

b)

Circlealkanes

c)

Cyclohexanes

d)

just hydrocarbons

27.

Isomers with more branches than the regular molecule will...

a)

have a higher the boiling point.

b)

have a lower the boiling point.

c)

be easier to break into smaller pieces

d)

be easier to digest.

28.
Propane has no structural isomers
a)
True
b)
False
29.
Are the compounds shown isomers
a)
Yes
b)
No
30.
Are the following molecules isomers?
a)
Yes
b)
No
31.
Are the following molecules isomers
a)
Yes
b)
No
32.

At which temperature do KBr and KNO3 have the same solubility?

a)

60

b)

55

c)

50

d)

Never

33.

Identify if the following solution would be saturated, unsaturated, or supersaturated: 103 g KBr at 70'C.

a)

Unsaturated

b)

Saturated

c)

Supersaturated

34.

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

a)

50 g

b)

45 g

c)

60 g

d)

33 g

35.

You can make a solute dissolve more quickly in a solvent by

a)

adding more solute.

b)

adding ice.

c)

heating the solvent.

d)

removing some solvent.

36.

Which would NOT increase the rate at which a sugar cube dissolves?

a)

Reducing the amount of solvent

b)

Crushing the sugar cube

c)

Stirring the solution

d)

Heating the solvent

37.
Solubility is defined as
a)
the ability to catch on fire
b)
the ability to be dissolved
c)
the ability to fly.
d)
the ability to get on Mrs. D's nerves.
38.
The substance being dissolved in a solution.
a)
sands
b)
solute
c)
solvent
d)
alloy
39.
The substance in which a solute is dissolved
a)
sands
b)
solvent
c)
alloy
d)
negative particles
40.
In a sample of salt water, NaCl would be considered the ______.
a)
Solution
b)
Solute
c)
Solvent
d)
Solvation
41.
When a solution is saturated:
a)
No additional material will dissolve in it
b)
You need to stir it more 
c)
Two materials have combined to create a clear liquid
d)
Crystals form 
42.

Neutral solutions have a pH of

a)

pH of 2

b)

pH of 10

c)

pH of 7

d)

pH of 0

43.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
44.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
45.

A pH of 3 is how many times more acidic than a pH of 5?

a)

2

b)

20

c)

10

d)

100

46.

An acid that very easily and completely ionizes when it dissolves in water is a...

a)

strong acid

b)

weak acid

c)

weak base

d)

strong base

47.

Sodium hydroxide (NaOH) dissociates completely in water producing a high concentration of hydroxide ions. This makes it a...

a)

Acid

b)

Strong base

c)

Weak base

d)

Strong acid

48.

A solution that is a good conductor of an electrical current because of its many ions.

a)

Acid

b)

Base

c)

Energy Drink

d)

Electrolyte

49.

When ionic compounds dissolve in water to produce ions is called...

a)

ionization

b)

dissociation

c)

evaporation

d)

distillation

50.
What percentage of the Earth's water is fresh water?
a)
70%
b)
10%
c)
3%
d)
7%
51.

How much sweeter is Splenda than table sugar?

a)

50x

b)

5x

c)

100x

d)

600x

52.

Some fake sugars may be linked to?

a)

Internal bleeding

b)

Seizures

c)

Cancer

d)

Bladder infections

53.

Fake sugars affect the sense of taste because?

a)

They burn off taste buds

b)

They do not affect the sense of taste

c)

They are hundreds of times sweeter than table sugar

54.

Why do fake sugars help people with Diabetes?

a)

They don't raise blood sugar levels

b)

They are yummy

c)

They are cheaper

d)

They burn fat cells

55.
Non-meat examples of protein include
a)
broccoli, kale, carrots
b)
beans, legumes, eggs
c)
tofu, apples, spinach
56.
A food that contains all 9 essential amino acids
a)
globular proteins
b)
complete proteins
c)
fibrous proteins
d)
whey
57.
_ is/are used to build and repair muscle.
a)
carbohydrates
b)
fiber
c)
protein
d)
fat
58.
What kinds of food can you get protein from in your diet?
a)
Eggs
b)
Meat and Fish
c)
Nuts and Legumes
d)
All of the above
59.
Amino Acids:
a)
are a type of marinade.
b)
help transport fats in the body.
c)
are the building blocks from which proteins are made.
d)
are only found in plants.
60.
Many fruits and vegetables naturally contain sugar
a)
True
b)
False
61.
___________ is sugar found in fruit, honey and vegetables.
a)
Maltose
b)
Lactose
c)
Fructose
d)
Sucrose
62.
What happens if you eat more carbohydrates then your body needs?
a)
becomes DNA 
b)
turns to fat 
c)
creates extra energy 
d)
becomes waste
63.
Which health problems is a consequence of eating too much added sugar? 
a)
overweight
b)
heart disease
c)
diabetes
d)
all of the above
64.
Saturated fats turn into a solid at room temperature.
a)
True
b)
False
65.
The average American child eats 116 pounds of sugar each year. 
a)
True
b)
False 
66.
What is a protein: 
a)
A polymer composed of many sugars.
b)
A polymer composed of many amino acids. 
c)
A polymer composed of fatty acids. 
d)
A polymer composed of nucleotides. 
67.
What is a peptide bond?
a)
Bond that holds two amino acids together.
b)
A bond that holds hydrogen and oxygen molecules together.
c)
A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
d)
A bond that is formed by the sharing of electrons.
68.
How many different amino acids are there?
a)
15
b)
20
c)
25
d)
30
69.

The first level of protein structure is

a)

a long chain of amino acids

b)

folds, such as helixes and pleated sheets

c)

a complete protein with chains, folds, etc.

d)

multiple proteins acting together

70.

The second level of protein structure is

a)

a long chain of amino acids

b)

folds, such as helixes and pleated sheets

c)

a complete protein with chains, folds, etc.

d)

multiple proteins acting together

71.

The third level of protein structure is

a)

a long chain of amino acids

b)

folds, such as helixes and pleated sheets

c)

a complete protein with chains, folds, etc.

d)

multiple proteins acting together

72.

The fourth level of protein structure is

a)

a long chain of amino acids

b)

folds, such as helixes and pleated sheets

c)

a complete protein with chains, folds, etc.

d)

multiple proteins acting together

73.
Trans fat was originally ______________ before they hydrogenated it.
a)
Saturated Fat
b)
Unsaturated Fat
c)
It's always been Trans Fat
74.
Why is fat an important part of our diet?
a)
Because it tastes good
b)
Because it carries so much energy
c)
Because it  contains nutrients you can't get from anything else
d)
Because it contain oxygen atoms
75.
What do carbohydrates and fats have in common?
a)
They're both sources of glucose
b)
They're both sources of protein
c)
They're both sources of fatty acids
d)
They're both sources of glycerol
76.
A sedentary lifestyle can cause glucose to turn into body fat. What is the best synonym for "sedentary?"
a)
healthy
b)
hyperactive
c)
sleep-deprived
d)
inactive
77.
What is the key difference between saturated and unsaturated fats?
a)
Saturated fats are usually liquid at room temperature; unsaturated fats are usually solid
b)
Saturated fats stay solid at room temperature; unsaturated fats are usually liquid
c)
Saturated fats can be found in vegetable oils, unsaturated fats can be found in animal products
d)
Saturated fats are healthier than unsaturated fats
78.
What atoms make up all carbohydrates?
a)
Carbon, Sulfur, Hydrogen
b)
Carbon, Oxygen, Phosphorus
c)
Carbon, Oxygen, Nitrogen
d)
Carbon, Oxygen, Hydrogen
79.
How many sugar units make up monosaccharides?
a)
one
b)
two
c)
three
d)
zero
80.
How many sugar units make up disaccharides?
a)
one
b)
two
c)
three
d)
zero
81.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)
cellulose
82.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
83.

Carbohydrates yield how many Calories per gram?

a)

0 Cal/gram

b)

9 Cal/gram

c)

4 Cal/gram

d)

4.186 Cal/gram

84.
Sugars all end with what three letter ending?
a)
-ote
b)
-ate
c)
-ase
d)
-ose
85.

Sugars yield how many Calories per gram?

a)

0 Cal/gram

b)

9 Cal/gram

c)

4 Cal/gram

d)

4.186 Cal/gram

86.

Fats yield how many Calories per gram?

a)

0 Cal/gram

b)

9 Cal/gram

c)

4 Cal/gram

d)

4.186 Cal/gram

87.

Which of the following are properties of acids?

a)

They conduct electricity when dissolved in water

b)

They taste sour

c)

They react with metals to produce hydrogen gas

d)

All of the answer choices are correct

88.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

89.

Bases have many uses. They are mainly used to make

a)

cleaning products

b)

soaps

c)

concrete

d)

all of the answer choices

90.

Ocean water is only slightly basic. What might its pH value be?

a)

5

b)

8

c)

12

d)

2

91.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
92.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
93.
Forms hydronium ions in water.
a)
Acids
b)
Bases
c)
All
94.
Why are bases useful as cleaning products?
a)
They dissolve fats and oils
b)
they are corrosive, so they eat anything
c)
they don't mix with water
d)
since bases are slippery, they slip dirt off of surfaces
95.

If the Hydronium ion concentration is 1.0x10-3

a)

the pH is 3

b)

the pH is -3

c)

the pOH is 3

d)

the pOH is -3

96.

If the Hydroxide ion concentration is 1.0x10-3

a)

the pH is 11

b)

the pH is 3

c)

the pOH is 3

d)

the pOH is -3

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