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Chemistry End of Unit

Total questions: 65

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

What is matter?

a)

Anything that takes up space and has mass....Stuff

b)

Anything that takes up space

c)

Anything that has mass

2.

What is a pure substance?

a)

Single Kind of matter that has a specific set of properties and all particles are identical

b)

Matter that changes

c)

To be honest I don't know

3.

Check all examples that could be a pure Substance

a)

Salt

b)

Distilled Water

c)

Blueberry Muffins

d)

Soup

4.

What is a Physical Property?

a)

A characteristic of a pure substance that describes its ability to change into different substances.

b)

characteristic of a pure substance that can be observed or measured without changing it into another substance

c)

A characteristic

5.

Which two are examples of Physical Properties?

a)

Melting Point

b)

Flexibility

c)

Flammability

d)

Ability to React

6.

What is a Chemical Property

a)

A characteristic of a pure substance that describes its ability to change into different substances.

b)

a characteristic of a pure substance that can be observed or measured without changing it into another substance.

7.

Which two are examples of a Chemical Properties?

a)
b)
c)
d)
8.

What are elements

a)

Made up of ketchup

b)

Made up of atoms of the same kind

c)

A group of atoms

9.

What is compound?

a)

Group of elements grouped together

b)

Group of elements chemically combined

c)

A mixture

10.

What is a heterogeneous mixture?

a)

You CAN see the different parts.

b)

You CANNOT see the different parts

11.

What is a homogeneous mixture.

a)

You CAN see the different parts

b)

You CANNOT see the different parts

12.

What is an example of a homogeneous mixture?

a)
b)
c)
13.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
14.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
15.
Which of these is a result of a chemical change?
a)
A mixture
b)
A solution
c)
A new substance
d)
Melting or freezing
16.

What does Malleable refer to?

a)

Shiny or Dull

b)

Able to be hammered or pressured

c)

able to transfer energy

17.

Definite shape, definite volume

a)

solid

b)

liquid

c)

gas

d)

plasma

18.

No definite shape, definite volume

a)

solid

b)

liquid

c)

gas

d)

plasma

19.

No definite shape, definite volume

a)

solid

b)

liquid

c)

gas

d)

plasma

20.

No definite shape or volume

a)

solid

b)

liquid

c)

gas

21.

Spreads out to take the volume of its container

a)

solid

b)

liquid

c)

gas

22.

Melting/freezing point of water

a)

0 Celsius

b)

100 Celsius

c)

32 Celsius

d)

212 Celsius

23.

Evaporation and boiling are two types of

a)

melting

b)

freezing

c)

vaporization

d)

crystallization

24.

The boiling point of water

a)

0 Celsius

b)

32 Celsius

c)

100 Celsius

d)

212 Celsius

25.

Going directly from a solid to a gas

a)

deposition

b)

sublimation

c)

melting

d)

evaporation

26.

According to the Kinetic Molecular Theory a liquid's (SELECT ALL THAT APPLY)

a)

particles are held close together by intermolecular forces

b)

particles are in constant motion

27.
Of these three states of matter, which one has the most kinetic energy? 
a)
Solid 
b)
Liquid 
c)
Gas
28.

1. Kinetic refers to _______________

a)

Force

b)

Energy

c)

Motion

d)

Acceleration

29.
What state of matter consists of tightly packed atoms?
a)

Solid

b)

liquid

c)

gas

30.
To make a solid become a liquid, you must increase its________________.
a)
mass
b)
density
c)
kinetic energy
d)
potential energy
31.
Adding thermal energy to matter casues its particles to _________________.
a)
move slower
b)
move faster
c)
melt
d)
feeze
32.

Democritus thought matter was made of indestructible particles called

(a)  

33.

In Bohr's model, electrons (a)   the nucleus in energy shells. Electrons can move between energy shells when they gain or lose ​ (b)   .

Choose from the below words
orbit
energy
are in
move randomly around
speed
mass
34.

The first step in naming an ionic compound is always...

a)

Naming the anion (non-metal)

b)

Changing the ending to -ide

c)

Naming the cation (metal)

35.
Mg2+ and Cl- create...
a)

Mg2Cl

b)

MgCl2

c)

Mg2Cl2

d)

MgCl

36.
Li+ and P3- create...
a)

Li3P

b)

LiP3

c)

LiP

d)

Li2P

37.
What is the NAME of....
Na2S
a)

sodium sulfide

b)

disodium sulfide

c)

sodium sulfur

38.

Which of the following is an ionic compound:

a)

CH4

b)

LiBr2

c)

CO

39.

How do the following two elements bond together? Al3+  O2-         Check the over all charges.

a)

2AlOr

b)

Al2O3

c)

Al3O2

40.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

41.

How many electrons should sodium, atomic number 11, have around its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

42.

How many valence electrons does Aluminum Have?

a)

20 Valence electron

b)

III (3) Valence electrons

c)

IV (4) Valence electrons

d)

V (5) Valence electrons

43.

Which is the correct molecular structure for carbon dioxide CO2?

a)
b)
c)
44.

What bond type shares electrons?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

45.
What type of bond is this?
a)
ionic
b)
covalent
46.
This picture shows a...
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
47.
Compounds made from only nonmetals are _________________ compounds.
a)
ionic
b)
covalent
c)
metallic
d)
chemical
48.

Where are metals located on the periodic table?

a)

right side of the staircase

b)

on the staircase

c)

left side of the staircase

49.

H2O has how many covalent bonds?

a)

0

b)

1

c)

2

d)

3

50.

What is the formula of this molecule?

a)

CH

b)

HC4

c)

CH4

d)

C4H4

51.

What is the goal of the Lewis Dot Structure?

a)

To determine the electron position.

b)

To show the element's valence electrons.

c)

To find the atomic mass of an element.

d)

To search for the number of electrons in an individual atom.

52.

How many valence electrons should Magnesium have in its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

53.

This is a correct dot diagram for carbon (C)

a)

true

b)

false

54.
How many valence electrons does chlorine (Cl) have?
a)

2

b)

5

c)

6

d)

7

55.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
56.
Anything made of matter must _____________________.
a)
take up space and have mass
b)
have mass and be a solid
c)
be a solid and not move
d)
take up space and be a liquid
57.
Mass is a property of ___________.
a)
waves
b)
energy
c)
matter
d)
light
58.
Which of these would you use to measure mass?
a)
a barometer
b)
a thermometer
c)
a balance scale
d)
a ruler
59.

What are the compounds on the RIGHT side of a chemical equation called?

a)

reactants

b)

products

60.

What are the compounds on the LEFT side of a chemical equation called?

a)

reactants

b)

products

61.

What symbol is used between the reactants and products sides of an equation?

a)

a plus sign

b)

an arrow

c)

a comma

d)

no symbol is used

62.

A chemical equations is considered balanced when

a)

reactants break apart

b)

products are greater than reactants

c)

reactants = products

d)

when the chemical reaction happens

63.

_________can never be changed, since this would change the identity of the compounds

a)

subscripts

b)

superscripts

c)

coefficients

d)

chemical formulas

64.

The coefficient in 3H2O is

a)

6

b)

5

c)

2

d)

3

65.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24

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