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Unit B Retake Study Session

Total questions: 60

Worksheet time: 45mins

Name
Class
Date
1.

BURNING WOOD...chemical or physical change?

a)

chemical

b)

physical

2.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
3.

Marion puts an ice cube in a beaker and it melts. This is a good example of:

a)

a physical change.

b)

a chemical change.

c)

an experiment.

d)

an analysis.

4.

Adding baking soda and vinegar together and it fizzes and creates carbon dioxide.

a)

Chemical Change

b)

Physical Change

5.
Which is a Chemical property?
a)
Thermal Conductivity 
b)
Density
c)
Malleability 
d)
Flammability 
6.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
7.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
8.
Element or compound?
H2O
a)
element
b)
compound
9.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
10.
Which of the following is a positively charged subatomic particle found in the nucleus of an atom?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
11.
An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?
a)
15
b)
31
c)
16
d)
47
12.
What carries no charge 
a)
Neutrons
b)
Electrons
c)
Protons
13.

Calcium is most like which of the following element?

a)

Barium

b)

Potassium

c)

Cesium

d)

Nitrogen

14.

The blue elements are called:

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

15.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
16.
Black = Carbon (C)
White = Hydrogen (H)
What would be the formula for ethane?
a)
CH4
b)
CH6
c)
C2H2
d)
C2H6
17.

How many elements are in the compound C2H8O ?

a)

2

b)

1

c)

3

d)

0

18.
A substance that undergoes a(n) _____ change becomes a new kind of substance.
a)
large
b)
physical
c)
chemical
d)
state of matter
19.
All of the following are chemical changes except
a)
iron rusting
b)
water evaporating
c)
wood burning
d)
food rotting
20.

Which subatomic particle carries a positive charge?

a)

electron

b)

orbital

c)

proton

d)

neutron

21.

This subatomic particle determines what element you have - the elements identity.

a)

electron

b)

proton

c)

neutron

d)

valence shell

22.
An electron has a _____ charge.
a)
negative
b)
positive
c)
neutral
23.

What are the maximum number of electrons that fill up the first 3 energy levels?

a)

2,4,16

b)

2,8,18

c)

4,8,12

d)

3,4,6

24.

What are valence electrons?

a)

electrons on the first orbital always

b)

nucleus

c)

the outermost shell

d)

the number of electrons on the outermost energy level

25.

Which subatomic particles make up the nucleus of an atom?

a)

protons and neutrons

b)

electrons and protons

c)

electrons, protons, and neutrons

d)

electrons and neutrons

26.

The subatomic particles of the atom you can find by knowing the atomic number.

a)

neutrons

b)

protons and electrons

c)

protons and neutrons

d)

atomic mass

27.
Elements on the periodic table increase by...
a)
atomic mass
b)
size
c)
mass number
d)
atomic #
28.

Which statement best describes the locations of the subatomic particles?

a)

The protons and electrons are found in the nucleus, while neutrons are in energy levels outside the nucleus.

b)

The neutrons are in the nucleus, while the protons and electrons are in energy levels outside the nucleus.

c)

The protons and neutrons are in the nucleus, while the electrons are in energy levels outside the nucleus.

d)

The electrons and neutrons are in the nucleus, while the protons are in energy levels outside the nucleus.

29.
An atom of an element contains 20 protons. What is the identity of the element? (NOTE: you will need to use your Periodic Table)
a)
Neon
b)
Calcium
c)
Potassium
d)
Argon
30.
What is the atomic number of the atom pictured? 
a)
11
b)
12
c)
22
d)
23
31.

Which family of the periodic table is composed of inert (not reactive) gases?

a)

alkali metals

b)

alkaline earth metals

c)

halogens

d)

noble gases

32.

Elements which are shiny, conduct electricity and heat are called:

a)

metal

b)

nonmetal

c)

metalloid

d)

nonexistent

33.

Elements in a _______________ have similar chemical properties.

a)

period

b)

family

c)

row

d)

proton

34.

The simplest form of matter is...

a)

Carbon

b)

A compound

c)

An atom

d)

A simple compound

35.

Elements in the same ________ are more chemically similar.

a)

family

b)

period

c)

club

d)

table

36.
The majority of elements on the periodic table are
a)
man made.
b)
nonmetals.
c)
metals.
d)
gases.
37.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
38.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
39.
Compounds are different than elements because compounds are -
a)
A combination of two or more elements.
b)

B)not able to be broken down into parts
c)
made from the same type of atoms
d)
a pure substance, elements are not
40.
The smallest particle of any particular type of matter is known by which of the following terms?
a)
Element
b)
Chemical
c)
Atom
d)
Substance
41.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
42.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
43.
Is in simplest form and cannot be broken down
a)
Element
b)
Compound
c)
Mixture
44.

All matter is made of...

a)

energy

b)

atoms

c)

electrons

d)

compounds

45.

Matter is...

a)

everything that has density

b)

everything made of atoms

c)

elements

d)

anything that has mass and takes up space

46.
What is the term for combining 2 or more atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
48.
Review:
What is the formula for density?
a)
D= M x V
b)
D= V / M
c)
D= V+M
d)
D= M / V
48.
Review:
What is the formula for density?
a)
D= M x V
b)
D= V / M
c)
D= V+M
d)
D= M / V
49.

Valence electrons are:

a)

Electrons farthest away from the nucleus

b)

Electrons closest to the nucleus

c)

Electrons that just come and go - they don't stay with the atom

d)

Electrons in the second energy level

50.
Most elements will gain or lose electrons so that they end up with _______ valence electrons.
a)
2
b)
6
c)
8
d)
10
51.

The yellow elements are called:

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

52.
A valence electron or electrons exist in the ______ energy level.
a)
Farthest in
b)
Middle
c)
Furthest out
53.

Elements in the same family of the periodic table always have the same # of _______ as one another.

a)

Protons

b)

Neutrons

c)

Electrons

d)

Valence Electrons

54.
How many valence electrons does Neon have?
a)
18
b)
8
c)
10
d)
2
55.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
56.

Properties of compounds are the same as the properties of the elements that make them up.

a)

True

b)

False

57.

What form form and type of energy is stored between the bonds between atoms?

a)

Gravitational Potential

b)

Thermal Kinetic

c)

Chemical Potential

d)

Elastic Potential

58.

What is the input in all stages of a product-life cycle diagram?

a)

Waste

b)

Energy

c)

Raw Materials

d)

A Landfill

59.

What is the output in all stages of a product-life cycle diagram?

a)

Waste

b)

Energy

c)

Raw Materials

d)

A Landfill

60.

This family on the periodic table includes the most number of elements.

a)

Noble Gas Family

b)

Alkali Metals Family

c)

Transition Metals Family

d)

Halogen Family

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