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Criterion A Unit 2

Total questions: 55

Worksheet time: 43mins

Name
Class
Date
1.

You know that a chemical reaction is occurring here because you see __________________ . (Pick 3)

a)

purple color

b)

smoke

c)

ice formation

d)

fire

e)

a yellow precipitate

2.

When zinc reacted with hydrochloric acid, what was the result of this reaction?

a)

a white powder

b)

a blue liquid

c)

a brown precipitate

d)

a gas

3.
a)
Physical Change
b)
Chemical Change
4.
a)
Physical Change
b)
Chemical Change
5.
a)
Physical Change
b)
Chemical Change
6.
a)
Physical Change
b)
Chemical Change
7.
a)
Physical Change
b)
Chemical Change
8.
a)
Physical Change
b)
Chemical Change
9.
a)
Physical Change
b)
Chemical Change
10.
a)
Physical Change
b)
Chemical Change
11.
a)
Physical Change
b)
Chemical Change
12.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
13.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
14.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
15.
Change in color is a physical change.
a)
True
b)
False
16.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
17.
Rust on an iron bar is an example of chemical change.
a)
True 
b)
False
18.

Burning wood

a)

physical change

b)

chemical change

19.

Acid in stomach, breaking down food.

a)

physical change

b)

chemical change

20.

Which of the following is evidence of a chemical reaction?

a)

Tearing paper.

b)

Change in color.

c)

Production of a gas.

d)

Change in temperature.

e)

Production of a precipitate.

21.
a)
Physical Change
b)
Chemical Change
22.
a)
Physical Change
b)
Chemical Change
23.
a)
Physical Change
b)
Chemical Change
24.
a)
Physical Change
b)
Chemical Change
25.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
26.

A crayon has a mass of 10.0 g and volume of 5.0 mL. What is the density?

a)

30 g/mL

b)

15 g/mL

c)

1.0 g/mL

d)

2.o g/mL

27.
True or False:  The density of a specific type of material never changes.  
a)
True
b)
False
28.
You can measure ______ with grams.
a)
mass
b)
volume
c)
conductivity
d)
melting point
29.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
30.
What is the density of water?
a)
0 g/ml
b)
1 g/ml
c)
10 g/ml
d)
100 g/ml
31.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3 
c)
38.0 cm3
d)
32.0 mL
32.

A block of aluminum occupies a volume of 15 mL and has a mass of 40.5 g. What is its density?

a)

.37 g/mL

b)

605.5 g/mL

c)

2.7 g/mL

d)

25.5 g/mL

33.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
34.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
35.

As part of a classifying elements lab Joe was finding the density of different samples. One sample had a mass of 26.4 and a volume of 12 mL. What element is it?

a)

Sulfur

b)

Carbon

c)

Boron

d)

Krypton

36.
If you are given the density and volume of an item, how would you calculate its mass?
a)
D = M/V  SO..
M = D/V
b)
D = M/V  SO...
M = V/D
c)
D = M/V SO...
M = D x V
37.
If you know the density and the mass of an object, what equation would you use to calculate its volume?
a)
V = D/M
b)
V = M/D
c)
V = M x D
d)
V = l x w x h
38.

A piece of copper has a mass of 89g and a volume of 10.0 cm3. What would be the density of the copper?

a)

0.89 g/cm3

b)

89 g/cm3

c)

8.9 g/cm3

d)

890 g/cm3

39.

Use the density chart to identify the substance. If the substance has a volume of 5 cm3 and a mass of 52.5.

a)

lead

b)

aluminum

c)

silver

d)

water

40.

In the picture, a can of Pepsi sunk and a can of Diet Pepsi are put into water. The Pepsi must be

a)

more dense than water

b)

less dense than water

c)

it has no density

d)

it has a density of 1 g/mL

41.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
42.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
43.
If an object has a density of .6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
44.

Why does ice float

a)

Liquid water is less dense than solid water.

b)

Solid water is less dense than liquid water.

c)

Gaseous water is less dense than solid water.

d)

Liquid water is less dense than gaseous water.

45.

In this picture, what is true?

a)

Box A has a lower volume

b)

Box B has a greater volume

c)

The boxes have the same mass

d)

The boxes have the same volume

46.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
47.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
48.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
49.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
50.

Which of the following could indicate that a chemical change took place?

a)

Change in color

b)

Production of Energy

c)

Formation of Gas

d)

All are correct

51.

The formation of a solid when two liquids combine is called?

a)

Solidification

b)

Freezing

c)

Precipitate

d)

Solubility

52.

The difference between a Physical change and a Chemical change is…

a)

Physical change is only a change to the outside appearance.

b)

Chemical change is when matter is changed into something new.

c)

Atoms are rearranged in chemical changes & not in physical.

d)

All are correct.

53.

Which type of change is most often easily reversed?

a)

Chemical

b)

Physical

c)

Both a physical and chemical change.

d)

Neither a physical or chemical change.

54.

Identify what type of change happening in the picture below...

a)

Chemical Change

b)

Physical Change

c)

Endothermic Reaction

d)

Exothermic Reaction

55.

During Chemical Reactions, the substances that are used are called?

a)

Precipitate

b)

Corrosion

c)

Reactants

d)

Products

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