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Chemistry Review Quiz Ch1-Ch2a

Total questions: 100

Worksheet time: 1hrs 13mins

Name
Class
Date
1.
Ice melting
a)
Chemical Change
b)
Physical Change
2.
a)
Physical Change
b)
Chemical Change
3.

When you fold a piece of paper, which physical property changes?

a)

The color

b)

The texture

c)

The size

4.

When we cut a piece of paper into triangles, which physical properties change?

a)

The smell and taste

b)

The texture and smell

c)

The size and shape

5.

When we add heat to butter, the butter _________

a)

Changes colors

b)

Melts and turns into a liquid

c)

Freezes and turns into a solid

6.

What kind of change is cutting paper?

a)
b)
7.

What kind of change is a melting popsicle?

a)
b)
8.

What kind of change is freezing water into ice cubes?

a)
b)
9.

What kind of change is cutting your hair?

a)
b)
10.
True or false: A physical change can result in an entirely different substance.
a)
True
b)
False
11.
True or false: Physical changes include changes in the state of matter.
a)
True
b)
False
12.

It is a process in which a liquid changes into solid. This process involves the release or loss of heat.

a)

Mel

b)

Freezing

c)

Evaporation

d)

Condensation

13.

It is the process in which a liquid changes into a gas.

This process requires the addition or absorption of heat. 

a)

Melting

b)

Freezing

c)

Evaporation

d)

Condensation

14.

Which of these are physical changes?

a)

breaking glass

b)

ripping paper

c)

sharpening a pencil

d)

folding a shirt

15.

Which of these are examples of changes in the physical state?

a)

Ice cube melting

b)

Water boiling

c)

Freezing rain

d)

mixing salt and water

16.

What instrument do scientist use to measure volume?

a)

thermometer

b)

balance scale

c)

graduated cylinder

d)

computer

17.

______________________ is the change from solid to liquid.

a)

evaporation

b)

condensation

c)

melting

d)

freezing

18.

______________________ is the change from liquid to solid.

a)

evaporation

b)

condensation

c)

melting

d)

freezing

19.

What type of change took place?

steamy bathroom mirror

a)

evaporation

b)

condensation

c)

melting

d)

freezing

20.

A................... is a combination of two or more substances that keep their identities.

a)

mixture

b)

solution

21.

A measurement is something that has both a number and a ______

a)

Unit

b)

Symbol

c)

Number

22.

Mass is the amount of _______ an object has

a)

Matter

b)

weight

23.

The unit for mass is...

a)

Newton

b)

grams

c)

mililiters

d)

centimeters

24.

What is this tool called....

a)

Ruler

b)

Thermometer

c)

Beaker

d)

Graduated Cylinder

25.

A graduated cylinder is used to measure...

a)

Volume

b)

mass

c)

weight

d)

density

26.

The unit for volume is. (there is more than one right answer)

a)

grams

b)

milliliters (mL)

c)

Newton

d)

Centimeters Cubed

27.

 

What two types of measurements make up DENSITY? 

a)

Volume and Weight

b)

Temperature and Mass

c)

Mass and Volume

28.

What is the density of water?

a)

34 g/mL

b)

1 g/mL

c)

29 g/mL

d)

6 g/mL

29.

Measuring the volume of a block uses which equation

a)

Length ×Width×HeightLength\ \times Width\times Height  

b)

(radius)2×Length×π\left(radius\right)^2\times Length\times\pi  

30.

When measuring the volume of a cylinder , what equation would you use

a)

Width×Length×HeightWidth\times Length\times Height

b)

(radius)2×Length×π\left(radius\right)^2\times Length\times\pi

31.

What is the unit we use for mass?

Ex. The mass of a Pencil is 1.35 __?__

(a)  

32.

What is the unit for density ?

a)

g/ mL

b)

g

c)

gcm3\frac{g}{cm^3}  

d)

cm4cm^4  

33.

Convert 2 m to mm

a)

20 mm

b)

200 mm

c)

1000 mm

d)

2000 mm

34.

645 cm to km

a)

64500 km

b)

0.00645 km

c)

0.0645 km

d)

645000 km

35.

0.37 m = (a)   cm

36.

0.317 km = (a)   m

37.

6.9 km = (a)   m

38.

4.5 km = ________ m

a)

4.5

b)

45

c)

4 005

d)

4 500

39.

This is the S.I. Unit to measure the mass of an object:

a)

grams

b)

meters

c)

pounds

d)

kilograms

40.

This is the S.I. Unit to measure temperature

a)

Celsius

b)

Kelvin

c)

Candela

d)

Farenheit

41.

This is the S.I. Unit to measure the length

a)

kilometers

b)

meters

c)

pounds

d)

kilograms

42.

English system unit to measure mass

a)

kilograms

b)

milles

c)

pounds

d)

inches

43.

English system unit to measure distance

a)

kilograms

b)

miles

c)

pounds

d)

meters

44.

This is the conversion factor to convert hours to seconds

a)

1 h= 60 s

b)

3600 h= 1 s

c)

1 h=60 min

d)

1 h= 3600 s

45.

This is the conversion factor to convert minutes to seconds

a)

1 h= 60 min

b)

1 min= 60 s

c)

60 min= 1 s

d)

1 h= 3600 s

46.

This is the conversion factor to convert km to mile

a)

1 m = 1.61 km

b)

1.61 miles= 1 km

c)

1 mile= 1.61 km

47.

This is the conversion factor to convert feet to inches

a)

12 in= 1 ft

b)

1 ft= 12 in

c)

1 mile= 1.61 km

48.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
49.
Change from standard form to scientific notation:  450,000
a)
4.5  x  105
b)
45  x  105
c)
4.5  x  104
d)
4.5  x  106
50.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
51.
Which number is correctly written in scientific notation?
a)
5.67 x 105
b)
56.7 x 103
c)
0.567 x 106
52.

Consider Scientific Notation...

5 Which is the correct coefficient of 147,000 when it is written in scientific notation

a)

147

b)

14.7

c)

1.47

d)

0.147

53.
Which number is correctly written in scientific notation?
a)
8.2 x 102
b)
82 x 107
c)
3.45 x 94
54.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
55.
Which of the following in the LARGEST number?
a)
9 x 106
b)
8 x 1010
c)
1.3 x 1012
d)
5.3 x 103
56.
Which one of these is in scientific notation?
a)
8.987000
b)
8.98 x 106
c)
80.987 x 10
d)
8.986
57.
Write 0.000972 in scientific notation.
a)
9.72 x 10-4
b)
9.72 x 10-3
c)
972 x 10-4
d)
9.72 x 104
58.
Try to change the number back to standard form:  6.79  x  104
a)
679,000
b)
6,790
c)
67,900
d)
6,790,000
59.

How many significant figures are in 127.500?

(a)  

60.

How many significant figures are in 670?

(a)  

61.

Give the answer to the correct number of significant figures to

145.63 - 28.9

a)

116.73

b)

116.7

c)

116.70

d)

117

62.

Give the answer to the correct number of significant figures to

17.3 x 6.2

(a)  

63.

Give the answer to the correct number of significant figures to

247.89 ÷ 43.5

a)

5.70

b)

5.7

c)

5.699

d)

5.69

64.

Give the answer to the correct number of significant figures to

109.3758 ÷ 5.813

(a)  

65.

How many significant figures are in the following measurement?

2.51 m

a)

1 significant figure

b)

2 significant figures

c)

3 significant figures

d)

4 significant figures

e)

5 significant figures

66.

How many significant figures are in the following measurement?

3025.000 g

a)

5 significant figures

b)

7 significant figures

c)

6 significant figures

d)

3 significant figures

e)

1 significant figure

67.

Who came up with the first atomic theory?

a)

Dalton

b)

Socrates

c)

Thomas

d)

Rutherford

68.

What did Rutherford discover about atoms?

a)

An atom is always negatively charged.

b)

An atom is mostly empty space, but has a dense positively charged center(nucleus).

c)

An atom is always positively charged.

d)

All particles will pass straight through gold foil with no change in path.

69.

What is a positively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

70.

What is a negatively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

71.

What is a particle with no charge?

a)

neutron

b)

electron

c)

proton

d)

atom

72.

Who discover the electron?

a)

Dalton

b)

Rutherford

c)

Thomson

d)

Bohr

73.

What did Rutherford discover in his experiment?

a)

nucleus

b)

electrons

c)

neutrons

d)

protons

74.

Who proposed a model with electrons moving in specific layers?

a)

Dalton

b)

Rutherford

c)

Bohr

d)

Thomson

75.

What does atom mean?

a)

small

b)

visible

c)

indivisible

d)

particle

76.

Rutherford's "gold-foil" experiment using alpha particle scattering concluded that

a)

the center of the atom is empty

b)

atomic mass is spread over the whole atom

c)

the center of the atom has a negative charge

d)

most of the atom is empty

77.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
78.

Who was considered as one of the founders of the ancient atomist theory?

a)

Aristotle

b)

Parmenides

c)

Empedocles

d)

Democritus

79.

All of the following are true about Democritus' atomic theory EXCEPT ______.

a)

Everything is made up of atomos and the void.

b)

Atoms vary in size and shape.

c)

Atoms are composed of subatomic particles.

d)

Atoms are infinite in number.

80.

What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?

a)

Ernest Rutherford, JJ Thomson, John Dalton, & Democritus

b)

JJ Thomson, John Dalton, Ernest Rutherford, & Democritus

c)

Democritus, John Dalton, JJ Thomson, Ernest Rutherford.

d)

John Dalton, JJ Thomson, Democritus, & Ernest Rutherford

81.

Who discovered the neutron?

a)

JOSEPH JOHN THOMSON

b)

ERNEST RUTHERFORD

c)

NEILS BOHR

d)

JAMES CHADWICK

82.

It is the smallest particle of an element

a)

PROTON

b)

ELECTRON

c)

NEUTRON

d)

ATOM

83.

Where are electrons located in an atom?

a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
84.
Which of these is NOT a basic piece of an atom?
a)
proton
b)
neutron
c)
electron
d)
quantron
85.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
86.

What subatomic particle changes in an ion?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

87.

Where is the proton located?

a)

In the very dense nucleus

b)

Floating around in the negative electron cloud

c)

In the loose nucleus

d)

In the positive electron cloud

88.
The following element key shows how many protons?
a)
16
b)
15.999
c)
Oxygen
d)
8
89.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
90.

What type of atom is element C?

a)

Normal atom

b)

Ion

c)

Isotope

91.

How would H2O be classified? Check all that apply.

a)

Atom

b)

Molecule

c)

Compound

92.

Which subatomic particle has a negative charge in the atom?

a)

proton

b)

neutron

c)

electron

d)

quark

93.
J.J. Thomson provided evidence that an atom...
a)
is the smallest particle of matter
b)
contains negatively and positively charged particles
c)
has an overall negative charge
d)
has an overall positive charge
94.
What scientist is best known for his "Plum Pudding" model of the atom?
a)
J.J. Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
Democritus
95.
How many nitrogen atoms in 
Mg(NO3)2
a)
1
b)
2
c)
3
d)
6
96.
How many magnesium atoms in 
Mg(NO3)2
a)
1
b)
2
c)
3
d)
6
97.

What is the number of proton of the molecule?

a)

80

b)

120

c)

200

98.

What is the number of electron of the molecule?

a)

29

b)

34

c)

63

99.

What is the number of proton of the molecule?

a)

6

b)

8

c)

9

d)

10

100.

What is the number of proton of the molecule?

a)

24

b)

27

c)

30

d)

32

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