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New : Module 1 Test Review

Total questions: 60

Worksheet time: 51mins

Name
Class
Date
1.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
2.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
3.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
4.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
5.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
6.
True or False? Neutrons have a negative charge
a)
True
b)
False
7.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
8.
An atom's mass number equals the number of...
a)
protons plus the number of electrons
b)
protons plus the number of neutrons
c)
protons
d)
neutrons
9.
Which statement about the atomic nucleus is correct?
a)
The nucleus is made of protons and neutrons and has a negative charge
b)
The nucleus is made of protons and neutrons and has a positive charge
c)
The nucleus is made of electrons and has a positive charge
d)
The nucleus is made of electrons and has a negative charge
10.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
11.
These particles orbit around the nucleus of an atom.  What are they called?
a)
electrons
b)
protons
c)
neutrons
d)
photons
12.
Can a mixture be separated? 
a)
No
b)
Yes
c)
Only sometimes
13.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
14.

If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?

a)

12 neutrons

b)

12 electrons

c)

12 protons

d)

24 protons and neutrons

15.

What two particles determine the mass number?

a)

Protons and electrons

b)

Electrons and neutrons

c)

Protons and neutrons

16.

What is the atomic number of this atom shown in the Bohr model?

a)

11

b)

12

c)

13

d)

can't be determined

17.

What is the mass number of the atom shown in the Bohr model?

a)

11

b)

12

c)

23

d)

Can't be determined

18.
All matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
19.

How many different types of molecules are pictured?

a)

2

b)

3

c)

4

d)

8

20.

What type of substance is pictured?

a)

element

b)

compound

c)

mixture

d)

solution

21.

What type of substance is pictured?

a)

element: diatomic

b)

compound

c)

element: Monoatomic

22.

Mixture or Pure Substance?

a)

Mixture

b)

Pure Substance

23.

Mixture or Pure Substance?

a)

Compound

b)

Pure Substance

c)

Mixture:

Heterogeneous

d)

Mixture:

Homogeneous

24.

Mixture or Pure Substance?

a)

Mixture

b)

Pure Substance

25.

A pure substance is

a)

the way something is put together or combined

b)

two or more different substances not chemically combined

c)

a kind of matter that always has a specific composition chemically combined.

d)

a small number that tells the amount of each element in a compound

26.

An element

a)

contains one type of atom

b)

contains two or more different type of atoms

c)

is two or more different substances not chemically combined

d)

is the way something is put together or combined

27.

Composition means

a)

a substance that contains one type of atom

b)

the way something is put together or combined.

c)

two or more different substances not chemically combined.

d)

subscript.

28.

Contains two or more different substances that are physically, not chemically, combined

a)

a mixture

b)

an element

c)

a compound

d)

a chemical formula

29.

Water (H2O) is a

a)

Element

b)

Compound

30.

Oxygen is a

a)

Element

b)

Compound

31.

[check all that apply] An compound is?

a)

Chemically combined

b)

Pure substances that can be broken down

c)

Pure substances that cannot be broken down into simpler substances

d)

One or more elements chemically combined.

32.

[check all that apply] Mixtures are

a)

chemically combined

b)

composed of two or more types of matter that can be present in varying amounts

c)

One or more elements chemically combined

d)

can be separated by physical changes

33.

Salt (NaCl) is

a)

Mixture

b)

Compound

34.

Homogeneous mixture is

a)

A mixture with a composition that varies from point to point

b)

A mixture with a uniform composition and appears visually the same throughout

35.

Chicken noodle soup is

a)

Homogeneous mixture

b)

Heterogeneous mixture

36.

Vinegar is

a)

Homogeneous mixture

b)

Heterogeneous mixture

37.

In a mixture, which of the following is always true?

a)

It is a liquid.

b)

It contains dissolved solids.

c)

It is composed of two or more pure substances.

d)

It cannot be separated into individual components.

38.

A bottle of dishwashing detergent contains a clear, viscous liquid. The label has a long list of ingredients, including water, sodium lauryl sulfate, fragrance, and Blue dye #5.

What can you infer about the material in the bottle from this label and the appearance of the liquid?

a)

It is a pure substance.

b)

It is a compound.

c)

It is a heterogeneous mixture.

d)

It is a homogeneous mixture.

39.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
40.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
41.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
42.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
43.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
44.

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

a)

cell

b)

nucleus

c)

atom

d)

electron

45.

What are any of the various self-contained units of matter or energy that are fundamental parts of all matter. These particles include electrons, protons, and neutrons.

a)

subatomic particles

b)

elements

c)

nucleus

d)

electron cloud

46.

Does this picture accurately show the Law of Conservation of Mass?

a)

Yes

b)

No

47.

How many grams of OXYGEN would be needed to show conservation of mass in the example below?

a)

100 g

b)

93 g

c)

7 g

d)

0 g

48.

How many grams of coal were present at the start of the chemical change?

a)

Unknown

b)

100 g

c)

200 g

d)

50 g

49.

How many grams of CHOCOLATE POWDER are shown in the example of conservation of mass below?

a)

450 g

b)

465 g

c)

0 g

d)

15 g

50.

Mass is neither created nor ______________.

a)

made

b)

destroyed

c)

changed

51.

True or False: The mass of the reactants is equal to the mass of the products?

a)

True

b)

False

52.

How many kilograms of SMOKE are shown in the example of conservation of mass?

a)

1 kg

b)

30 kg

c)

28 kg

d)

3 kg

53.

True or False: This picture shows that during most chemical reactions the amount of mass in system stays the same?

a)

True

b)

False

54.
Which is Chemical Equation is Balanced?
a)
CH₄+O₂------CO₂+2H₂O
b)
H₂+O₂-----2H₂O₄
c)
4Al+3O₂-----2Al₂O₃
55.
The number to the lower side of an element is a 
a)
Subscript
b)
Superscript
c)
Coefficient
d)
Charge
56.
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
57.
Which is Chemical Equation is Balanced?
a)
CH₄+O₂------CO₂+2H₂O
b)
H₂+O₂-----2H₂O₄
c)
4Al+3O₂-----2Al₂O₃
58.
If a reaction starts with a total 75g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 75g of products
c)
a total of 180 g of products
d)
None of the above
59.
In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?
a)
17g
b)
2g
c)
7g
d)
None of the above
60.
Bob puts 200 grams of ice into a pitcher with 900 grams of water. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher?
a)
200 g
b)
700 g
c)
1,100 g

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