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Chapter 3 Review

Total questions: 66

Worksheet time: 44mins

Name
Class
Date
1.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

Ice Ice baby

2.

How is a chemical change different from a physical change?

a)

there is no difference

b)

a physical change creates a new substance

c)

a chemical change creates a new substance

3.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
4.

Is glass breaking a chemical or physical change?

a)
chemical
b)
physical
5.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
6.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
7.
Salt dissolves in water
a)
physical Change
b)
chemical change
8.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
9.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: precipitate

c)

Physical change: freezing

d)

Chemical change: new gas

10.

Boiling Water

a)

Physical Change

b)

Chemical Change

11.

Choose the best description below for the image

a)

physical change

b)

chemical change

12.

Physical or chemical?

Watch Video: https://live.myvrspot.com/l?k=670fdac02f915

a)

Physical

b)

Chemical

13.

a change in the chemical composition and identity of a substance

a)

Physical Change

b)

Chemical Change

c)

Physical and Chemical Change

d)

Matter

14.

a change that alters a substance without changing its chemical composition or its identity

a)

Chemical Change

b)

Physical Change

c)

Chemical and Physical Change

d)

Matter

15.

anything that has mass and takes up space

a)

Compressibility

b)

Malleability

c)

Reactivity

d)

Matter

16.

Color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point are examples of

a)

Physical Properties

b)

Chemical Properties

17.

Reactivity, flammability, and the ability to rust are examples of

a)

Physical Properties

b)

Chemical Properties

18.

Which statement describes a chemical property of silicon?

a)

Silicon has a blue-gray color.

b)

Silicon is a brittle solid at 20.°C

c)

Silicon melts at 1414°C.

d)

Silicon reacts with fluorine.

19.

Which statement describes a chemical property of aluminum?

a)

Aluminum is malleable.

b)

Aluminum reacts with sulfuric acid.

c)

Aluminum conducts an electric current.

d)

Aluminum has a density of 2.698 g/cm3 at STP.

20.

Which statement describes a chemical property of hydrogen gas?

a)

Hydrogen gas burns in air.

b)

Hydrogen gas is colorless.

c)

Hydrogen gas has a density of 0.000 09 g/cm3 at STP.

d)

Hydrogen gas has a boiling point of 20. K at standard pressure.

21.

Which is a chemical property of water?

a)

It freezes.

b)

It decomposes.

c)

It evaporates.

d)

It boils.

22.

Select all the terms below that describes ONLY physical properties.

a)

melting point

b)

corrosive

c)

ductile

d)

malleable

e)

Oxidizing

23.

This is a type of mixture where one substance dissolves into another

a)

Solution

b)

Miscibility

c)

Compound

d)

Solubility

24.
Which are different types of mixtures
a)
suspension
b)
solution
c)
colloid
d)
all the above
25.
What are the two types of Mixtures
a)
Elements and Subatomic Particles
b)
Protons and Electrons
c)
Atoms and Compounds
d)
Homogenous and Heterogeneous
26.
Cookies and cream ice cream would be classified as
a)
A homogenous mixture
b)
A heterogenous mixture
c)
An element
d)
A compound
27.

Two substances have been combined physically and appear the same throughout is called a.........

a)

A homogeneous mixture

b)

A heterogeneous mixture

c)

An element

d)

A compound

28.
This type of mixture has particles that settle. 
a)
Suspension
b)
Colloid 
c)
Emulsion
d)
Solution 
29.
A mixture in which 2 liquids are mixed so evenly that it is not possible to see the separate particles 
a)
Solute 
b)
Solution
c)
Solvent 
d)
Suspension 
30.

Sand in water

a)

colloid

b)

solution

c)

suspension

31.

Identify the substance in box B.

a)

element

b)

compund

c)

mixture

32.

Identify the substance in box D.

a)

element

b)

compound

c)

mixture

33.

Identify the substance in box Y.

a)

element

b)

compound

c)

mixture

34.

Identify the substance in box W.

a)

element

b)

compound

c)

mixture

35.

Identify this substance.

a)

element

b)

compound

c)

mixture

36.

What is the difference between a compound and a mixture?

a)

one is made of only 1 element, the other is made of several elements

b)

a mixture does not have a chemical formula

c)

a compound can be made many different ways

37.

Identify the substance.

a)

element

b)

compound

c)

mixture

38.

Which tools are best for separating a mixtures of sand, iron filings, and water?

a)

Hot plate and filter

b)

Tweezers and filter

c)

Filter and magnet

d)

Magnet and hot plate

39.

Which substances, when mixed together, maintain their original physical properties?

a)

gravel and water

b)

wood chips, water and sand

c)

sand and water

d)

all of the above

40.

Which mixture can be separated using a filter?

a)

sand and iron filings

b)

saltwater

c)

sand and water

d)

none of the above

41.

Which of the following mixtures can be separated with a magnet?

a)

sand and salt

b)

sand and iron filings

c)

sugar and water

d)

saltwater

42.

All of these can be separated easily EXCEPT -

a)

nuts, bolts, and screws

b)

powdered drink mix, sugar and water

c)

sand and water

d)

iron filings and sand

43.
Which of these is a pure substance?
a)
bread
b)
table salt
c)
garden soil
d)
sea water
44.

What is the name of this separation technique?

a)

Simple distillation

b)

Fractional distillation

c)

Boiling

d)

Evaporation

45.

Which separation technique is used to obtain pure water from seawater?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

46.

What is the name of this separation technique?

a)

distillation

b)

filtration

c)

evaporation

d)

chromatography

47.

What is the physical property on which fractional distillation depends?

a)

different boiling points

b)

different melting points

c)

different solubilities

d)

different densities

48.

For paper chromatography to work,

a)

the dyes must have different boiling points.

b)

the dyes must have different solubilities in the solvent.

c)

the starting line on the chromatogram must be drawn using pen.

d)

The starting line must be below the level of the solvent.

49.

Which separation technique is used to obtain salt from seawater?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

50.

Which ink is a mixture?

a)

Blue

b)

Red

c)

Yellow

d)

Black

51.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
dissolving
c)
evaporation
d)
decanting
52.
Which technique is shown the diagram below
a)
seiving
b)
filtration
c)
decanting
d)
crystallization
53.
Which one of the following is a disadvantage of evaporation?
a)
It always requires heat
b)
It cannot be used for insoluble solids
c)
All of the solute is recovered
d)
The solvent (liquid part) is not recovered
54.

What method is shown in the picture?

a)

Filtration

b)

Evaporation

c)

Chromatography

d)

Sieving

55.

To carry out filtration, you will need a...

a)

sieve

b)

magnet

c)

filter paper and a funnel

d)

evaporating basing

56.

Which separation technique is shown below

a)

filtration

b)

crystallization

c)

sublimation

d)

evaporation

57.

What is fractional distillation?

a)

a process used to separate crude oil

b)

a process used to burn up fuels

c)

a way to make different products

d)

how oil is extracted from the ground

58.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

59.

What process happens at each level in the fractionating column?

a)

Evaporation

b)

Condensation

c)

Combustion

60.

Where is the HOTTEST part of the fractionation column

a)

top

b)

right

c)

bottom

d)

left

61.

What is the correct use of Kerosene?

a)

Jet fuel

b)

Making roads

c)

Heating homes

d)

Truck fuel

62.

Convert 30°C into Kelvin.

a)

252K

b)

316°C

c)

303K

d)

-163°C

63.

Convert 89°F into °C.

a)

7.2°C

b)

32°C

c)

32°F

d)

212°F

64.

Convert 24°C into °F.

a)

7.2°C

b)

32°C

c)

75.2°F

d)

°68

65.

109°F =  °C109\degree F\ =\ \ \degree C  

(a)  

66.

What is 50°F in kelvin?

a)

323

b)

10

c)

300

d)

283

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