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Matter Review

Total questions: 65

Worksheet time: 2hrs 48mins

Name
Class
Date
1.

Which diagram shows the MOST dense object?

a)

left

b)

center

c)

right

2.

A block of aluminum occupies a volume of 15.0 mL and weighs 45.0 g. What is its density?

a)

3 g/mL

b)

0.3333 g/mL

c)

675 g/mL

d)

I have no idea

3.

A student measures the mass of an 8.0 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar?

a)

1.6 g/cm3

b)

0.62 g/cm3

c)

103.2 g/cm3

d)

0.54 g/cm3

4.

A chef fills a 50.0 mL container with 43.5 g of cooking oil. What is the density of the oil?

a)

1.15 g/mL

b)

0.87 g/mL

c)

2,175 g/mL

d)

6.5 g/mL

5.

A graduated cylinder is filled with water to a level of 40.0 mL. When a piece of copper is lowered into the cylinder, the water level rises to 63.4 mL. Find the volume of the copper sample.


If the density of the copper is 8.9 g/cm3 , what is its mass?

a)

23.4 g

b)

0.380 g

c)

208 g

d)

2.63 g

6.
What is a solute?
a)
The substance that does the dissolving in a solution.
b)
The substance that is dissolved into the solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
7.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
8.

How many grams of potassium nitrate (KNO3) will dissolve at 30 o C?

a)

47 g

b)

10 g

c)

18 g

9.

How many grams of sodium nitrate (NaNO3) will dissolve at 70 o C?

a)

55 g

b)

78 g

c)

134 g

10.

At 30'C, which substance has the lowest solubility?

a)

KNO3

b)

KBr

c)

NaCl

d)

Yb2(SO4)3

11.

At 80'C, KBr's solubility is:

a)

100

b)

90

c)

80

d)

0

12.

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

a)

Unsaturated

b)

Saturated

c)

Supersaturated

13.

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

14.

What pH does a neutral substance have?

a)

5

b)

6

c)

7

d)

8

15.

What pH does a neutral substance have?

a)

5

b)

6

c)

7

d)

8

16.

Which of the following is the weakest acid?

a)

bananas (pH 5)

b)

tomatoes (pH 4)

c)

cheese (pH 6)

d)

orange juice (pH 3)

17.

What is pH a measure of?

a)

Density

b)

Mass

c)

Hydrogen Ion Concentraion

d)

Polarity

18.

Which of the following pH values represents the greatest concentration of -OH ions?

a)

3

b)

6

c)

9

d)

1

19.

Which of the following pH values represents the greatest concentration of H+ ions?

a)

3

b)

6

c)

9

d)

1

20.

The purpose of a buffer is to ___________.

a)

Neutralize an acid or base and maintain pH.

b)

Make your car's new wax look shiny.

c)

Add volume to your hair.

d)

All of the above.

21.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
22.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
23.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
24.
Which solution releases H+ in solution?
a)
Base
b)
Acid
c)
Buffer
d)
Water
25.
This substance releases OH- into solution
a)
Acid
b)
Base
c)
Neutral
26.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
27.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
28.

What is pH a measure of?

a)

Density

b)

Mass

c)

Hydrogen Ion Concentraion

d)

Polarity

29.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
30.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
31.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
32.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
33.
Complete the sentence.
A substance that is more basic has a _____ pH than a substance that is acidic.
a)
lower
b)
higher
c)
the same
d)
none of the above
34.

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

a)

Both of the solution are Bases

b)

Both of the solution are Acids

c)

The Baking soda is an acid and the Bleach is a base

d)

The baking soda is a base and the Bleach is an Acid.

35.

A base is a substance

a)

That releases OH- ions when dissolved in water

b)

That releases H+ ions when dissolved in water

c)

Does not release any ions when dissolved in water

d)

None of the above

36.

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

a)

2

b)

20

c)

10

d)

100

37.
On the pH scale higher numbers indicate
a)
acids
b)
bases
38.
If you have a substance with a pH of 7.1 it is a(n).....
a)
Acid
b)
base
39.

The picture below shows the relative concentrations of H+ and OH- in a solution. Is the solution an acid or a base?

a)

acid

b)

base

40.

An acid

a)

is a substance that releases H+ ions when dissolved in water

b)

is a substance that does not release any ions when dissolved in water

c)

is a substance that releases OH- when dissolved in water

d)

releases an equal amount of OH- and H+ ions when dissolved in water

41.

Water has a neutral because

a)

it has more H+ ions than OH-

b)

it has more OH- ions than H+

c)

it does not produce any ions

d)

it has an equal amount of H+ and OH- in solution

42.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
43.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
44.
A solution has a pH of 7.0.  What would happen to the pH if H ions were added?
a)
pH would go up
b)
pH would go down
c)
pH would stay the same
d)
None of these
45.
A solution has a pH of 7.0.  What would happen to the pH if OH ions were added?
a)
pH would go up
b)
pH would go down
c)
pH would stay the same
d)
None of these
46.
A solution with a pH of 10 is mixed with a solution with a pH of 4.  What would the pH of the mixture most likely be?
a)
10
b)
4
c)
40
d)
7
47.
Complete the sentence.
A substance that is more basic has a _____ pH than a substance that is acidic.
a)
lower
b)
higher
c)
the same
d)
none of the above
48.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
49.

what is an example of a physical change?

a)

brownies

b)

Cutting paper

c)

cupcakes

d)

cookies

50.

A ____ change only changes the look of the substance but NOT the chemical make-up.

a)

Physical

b)

Chemical

51.

Is it a physical or chemical change?

a)

physical

b)

chemical

52.

Is it a physical or chemical change?

a)

Physical

b)

Chemical

53.

Vinegar + baking soda reaction.

Is it a physical or chemical change?

a)

Physical

b)

Chemical

54.

1 A substance made up of two or more chemically combined elements is —

a)

an element

b)

mixture

c)

compound

d)

solution

55.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
56.
A substance made of only one type of atom is called —
a)
an element
b)
a mixture
c)
a compound
d)
a salt
57.

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

a)

an element

b)

compound

c)

mixture

d)

suspension

58.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
59.

This picture represents which of the following?

a)

A single element

b)

Mixture of molecules

c)

mixture of atoms

d)

mixture of compounds

60.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

61.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
62.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
63.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
64.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
65.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood

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