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Study Guide States of Matter and LOCOM

Total questions: 96

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

Which chemical reaction below best represents the Law of Conservation of Mass?

a)

b)

c)

d)

2.

How does a balanced chemical equation satisfy the Law of Conservation of Mass?

a)

During a chemical reaction , matter is destroyed.

b)

During a chemical reaction, matter is created and destroyed.

c)

During a chemical reaction matter is neither created or destroyed.

d)

During a chemical reaction nothing happens.

3.

​When the particles of a substance are high energy, and have no definite size or shape, they are:

a)

solid

b)

liquid

c)

gas

4.

A beaker containing a certain substance has heat applied to it.  The particles that make up the substance begin to move farther apart from each other.  What change of state could be occurring to the substance in the beaker?

a)

the substance in the beaker is a liquid changing to a solid

b)

the substance in the beaker is a gas changing to a liquid .

c)

the substance in the beaker is a liquid changing to a gas

5.

When the particles of a substance are fluid or slide past one another. They have no definite shape but a definite volume

a)

solid

b)

liquid

c)

gas

6.

How does the movement of the particles change as the substance is under more pressure?

a)

Movement of particles increase.

b)

Movement of particles decrease.

c)

There would be no change in the movement of particles.

7.

5CHO

How many elements are shown?

a)

4

b)

1

c)

2

d)

3

8.

5CHO

How many atoms of Carbon are represented?

a)

4

b)

3

c)

2

d)

5

9.

5CHO

What are the total number of atoms represented?

a)

5

b)

10

c)

15

d)

20

10.

Does this equation follow the Law of Conservation of Mass?

a)

no

b)

yes

11.

What molecules are being produced?

a)

Carbon dioxide and Oxygen

b)

Carbon dioxide and water

c)

Carbon dioxide and Hydrogen gas

d)

Oxygen gas and CH

12.

The number of oxygen atoms on the reactant and product sides are equal.

a)

true

b)

false

13.

Which of the following are states of matter?

a)

Gas

b)

Solid

c)

Liquid

d)

Plasma

14.
Matter that has its own shape and takes up space.
a)
solid
b)
liquid
c)
gas
15.
Matter that always fills the shape in a container, such as air.
a)
solid
b)
liquid
c)
gas
16.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
d)
plasma
17.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
18.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
19.

___________ is anything that has mass and takes up space.

a)

Molecules

b)

Matter

c)

Volume

20.

Which state of matter does not have a definite shape but does have a definite volume?

a)

Solid

b)

Liquid

c)

Gas

21.

Matter is made of tiny particles called atoms and molecules.

a)

True

b)

False

22.

State of matter that takes the shape of it's container and has a definite volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

23.

State of matter that can fill containers with no fixed shape or volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

24.

State of matter in which materials have a definite shape and volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

25.

What change of state is taking place in this photograph?

a)

Condensation

b)

Freezing

c)

Vaporization

d)

Melting

26.

When a beaker of water is heated its volume increases a little. What is happening to the particles in the liquid?

a)

They are getting bigger.

b)

They are moving slower.

c)

They are moving faster.

d)

They are getting smaller.

27.

When you place a bottle of water in the freezer its volume increases. What is happening to the particles in the liquid?

a)

They are getting bigger.

b)

They are moving slower.

c)

They are moving faster.

d)

They are getting smaller.

28.

Which is NOT a property of a solid?

a)

They do not flow.

b)

Definite volume.

c)

No definite shape.

d)

They are incompressible.

29.

Which state of matter is represented in the following diagram?

a)

Liquid

b)

Liquid and gas

c)

Gas

d)

Solid

30.

Which of the following states is correct?

a)

Gases cannot be compressed.

b)

Solids are easily compressed.

c)

Gases are easier to compress than solids.

d)

Liquids cannot be compressed or expanded.

31.

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.

a)

disappears

b)

stays the same

c)

weighs less

d)

explodes

32.

An oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?

a)

15 grams

b)

25 grams

c)

20 grams

33.

Matter can not be created nor destroyed: it can only be

a)

Destroyed a little bit

b)

Invisible

c)

Transformed, changed

d)

None of the above

34.
If 25 grams of sugar dissolves into 150 grams of water, what is the new weight of the liquid?
a)
125 g
b)
150 g
c)
25 g
d)
175 g
35.

When ice melts, the water has the same _________ as the

a)

temperature

b)

state of matter

c)

shape

d)

mass

36.

The Law of Conservation of Matter states that the total amount of matter _____ after it undergoes change.

a)

disappears

b)

stays the same

c)

weighs less

d)

explodes

37.

The Law of Conservation of Matter states that...

a)

matter can simply appear.

b)

matter can neither be created nor destroyed.

c)

matter can simply disappear.

d)

matter can change form between a solid, liquid, and gas.

38.

Matter cannot be created nor destroyed.

a)

Law of Conservation of Energy

b)

Law of Conservation of Matter

c)

Law of Conservation of Environment

d)

Law of Conservation of Volume

39.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

40.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

41.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

42.

A student heated a 10 gram sample of a chemical in an open container. A chemical reaction occurred, and the mass of the sample was measured again. The mass of the sample was found to be less than before the reaction. Which of the following best explains the decrease in mass of the sample?

a)

The heat caused the chemical to become less dense.

b)

The reaction gave off more heat than was added.

c)

Some of the lighter particles were destroyed.

d)

Some of the particles escaped as a gas formed.

43.

two or more atoms joined together (can be from the same element or different elements)

a)

molecule

b)

compound

c)

mixture

d)

solution

44.

a substance that forms in a chemical reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

45.

a substance that takes part in and undergoes change during a reaction.

a)

coefficient

b)

subscript

c)

reactant

d)

product

46.

How many atoms of aluminum are on each side of the following equation?

4Al + 3O2 --> 2Al2 O3

a)

2

b)

6

c)

4

d)

1

47.

How many oxygen atoms are in the products for the chemical reaction below?
4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

2

b)

3

c)

5

d)

6

48.
Is this equation balanced or unbalanced? 
H2 + O2 --> H2O
a)
balanced
b)
unbalanced
49.

When sodium and chlorine combine to form sodium chloride, sodium chloride is the:

a)

Originator

b)

Reactant

c)

Product

d)

Produce

50.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

51.

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

a)

The mass of the products is always greater than the mass of the reactants.

b)

The mass of the reactants is less than the mass of the products.

c)

The mass of the reactants equals the mass of the products.

d)

The mass of the reactants is greater than the mass of the products.

52.

Which section represents the yield sign?

a)

A

b)

B

c)

C

53.

What happens to atoms in a chemical reaction?

a)

they are destroyed

b)

they are created

c)

they are rearranged

54.

Which section represents the products?

a)

A

b)

B

c)

C

55.

Which section represents the reactants?

a)

A

b)

B

c)

C

56.
Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?
a)
4.75 grams
b)
5.0 grams
c)
5.25 grams
d)
7.5 grams
57.

True or False

The mass of the reactants in a chemical equation must equal the mass of the products.

a)

True

b)

False

58.

How many nitrogen atoms are present in the compound

KNO3

a)

0

b)

1

c)

3

59.

How many sulfer atoms are there in the compound

H2SO4

a)

4

b)

2

c)

1

d)

7

60.
2H2O
How many H2O molecules are present?
a)
1
b)
4
c)
2
d)
8
61.
 2H2O
How many Hydrogen atoms are present?
a)
2
b)
4
c)
1
d)
10
62.

Physical or chemical change: Folding paper

a)

Physical

b)

Chemical

63.

Identify the Product (s) 2H2O2 -> 2 H2O + O2

a)

2H2O2

b)

2H2O and O2

64.
Anything that has mass & takes up space
a)
gravity
b)
force
c)
matter
d)
volume
65.
Measure of the amount of matter 
a)
mass
b)
volume
c)
weight
d)
density
66.
Smallest unit of an element
a)
compound
b)
atom
c)
molecule
d)
product
67.
Number placed in front of a chemical formula
a)
product
b)
coefficient
c)
reactant
d)
subscript
68.
Number written below & to the right of a chemical symbol
a)
subscript
b)
reactant
c)
product
d)
coefficient
69.
Substances that form as the result of a chemical reaction
a)
products
b)
reactants
c)
coefficients
d)
subscripts
70.
Substances present at the start of a chemical reaction
a)
subscripts
b)
coefficients
c)
reactants
d)
products
71.

How many oxygen atoms are in the products for the chemical reaction below?
4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

2

b)

3

c)

5

d)

6

72.

The Law of Conservation of Mass says that matter can neither be __________ or __________.

a)

created; destroyed

b)

recycled; renewed

c)

subtracted; added

d)

joined; separated

73.

How many atoms are in the products below?
4Fe +3O2 → 2Fe2O34Fe\ +3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

7

b)

10

c)

17

d)

20

74.

According to the Law of Conservation of Mass, what happens to the wood and oxygen when it is burned?

a)

The wood disappears.

b)

It stays the same chemically.

c)

The atoms in the wood and oxygen rearrange and form smoke and ash.

d)

Nothing.

75.

Balanced or Unbalanced: 2Na + H2O → NaOH + H22Na\ +\ H_2O\ \rightarrow\ NaOH\ +\ H_2  

a)

Balanced

b)

Unbalanced

c)

Not enough information

76.

Balanced or Unbalanced: 2Na + H2O → 2NaOH + 2H22Na\ +\ H_2O\ \rightarrow\ 2NaOH\ +\ 2H_2  

a)

Balanced

b)

Unbalanced

c)

Not enough information

77.

Balanced or Unbalanced: 2Na + 2H2O → 2NaOH + H22Na\ +\ 2H_2O\ \rightarrow\ 2NaOH\ +\ H_2  

a)

Balanced

b)

Unbalanced

c)

Not enough information

78.

Which equation matches the picture?

a)

2H2 + O2 → 2H2O2H_2\ +\ O_2\ \rightarrow\ 2H_2O  

b)

H2 + O2 → 2H2OH_2\ +\ O_2\ \rightarrow\ 2H_2O  

c)

2H2 + 2O2 → 2H2O2H_2\ +\ 2O_2\ \rightarrow\ 2H_2O  

d)

H2 + O2 → H2OH_2\ +\ O_2\ \rightarrow\ H_2O  

79.

What happens to the mass of matter during a chemical reaction?

a)

mass is lost

b)

mass is gained

c)

mass is not lost or gained

d)

mass is both gained and lost

80.

Does the image correctly represent the Law of Conservation of Mass?

a)

yes

b)

no

81.

Select the two equations that follow the Law of Conservation of Mass (meaning the equation is balanced).

a)

H2 + O2 --> H2O2

b)

CO2 --> Fe2O3

c)

Na Cl2 --> 2NaCl

d)

Na2 + 3H2 --> 2NH3

82.

An ice cube weighs 20 grams. How much will it weigh after it melts?

a)

10 grams

b)

15 grams

c)

20 grams

d)

25 grams

83.

Ms. Cookson makes a snack mixture. She adds 15 grams of M&M's, 10 grams of cashews, and 5 grams of Golden Grams cereal. How much does the mixture weigh?

a)

15 grams

b)

25 grams

c)

30 grams

d)

35 grams

84.

What does the arrow in a chemical equation represent?

a)

Products

b)

Reactants

c)

"Yields"

d)

Coefficients

85.

What is CH4 in this reaction?

a)

Reactant

b)

Product

c)

Coefficient

d)

Subscript

86.

What is CO2 in this reaction?

a)

Reactant

b)

Product

c)

Coefficient

d)

Subscript

87.

Does this equation follow the Law of Conservation of Mass?

a)

Yes

b)

No

88.

The chemical formula of glucose is C6H12O6. Is glucose an element, compound, or mixture?

a)

element

b)

compound

c)

mixture

89.

The chemical formula of glucose is C6H12O6. Is it a pure substance?

a)

yes

b)

no

90.

Why does this picture demonstrate the Law of Conservation of Mass?

a)

the number of atoms of each element are the same on both sides

b)

they start out separate and end up combined

c)

the same elements are used

d)

it doesn't demonstrate the Law of Conservation of Mass

91.

Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?

a)
b)
c)
d)
92.

In a balanced chemical equation, if there are 4 Hydrogen in the reactants, how many Hydrogen should be in the product?

a)

1

b)

2

c)

3

d)

4

93.

Which of the following chemical equations are balanced? (check all that apply)

a)

2Mg + O2 --> 2MgO

b)

2Al2O3 --> 4Al + 3O2

c)

HgO --> 2Hg + O2

d)

Na + Br2 --> 2NaBr

e)

C + 2H2 --> CH4

94.

Which of the following would represent a compound?

a)
b)
c)
95.

Which of the following would represent a mixture?

a)
b)
c)
96.

Is the following chemical equation balanced?

3H2 + N2 --> 2NH3

a)

No, because there are too many N in the product

b)

Yes, because each element has the same number on each side of the equation

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