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Chemistry Unit 1 Test Review

Total questions: 82

Worksheet time: 1hrs 22mins

Name
Class
Date
1.
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
2.
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
3.
Change from standard form to scientific notation: 0.004078
a)
4.078  x  10-3
b)
4.078  x  103
c)
40.78  x  10-4
d)
.4078  x  10-2
4.
Which number is correctly written in scientific notation?
a)
8.2 x 102
b)
82 x 107
c)
3.45 x 94
5.
Divide:
(6.9 x 107) / (2.3 x 10-3)
a)
3 x 1010
b)
3 x 104
c)
3 x 10-4
d)
3 x 10-11
6.
(9.6×10-8)÷(2×10-15)
a)
-4.8×107
b)
4.8×107
c)
4.8×10-7
d)
-4.8×10-7
7.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
8.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
9.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
10.

How many significant figures: 450 m

a)

3

b)

2

c)

1

d)

0

11.
Solve and give your answer with the correct number of significant figures
129.6/3
a)
43.0
b)
43
c)
 4x101
d)
40
12.
a)

Student A

b)

Student B

c)

Student C

d)

Cannot be determined

13.

How close a measurement is to the accepted value is called (a)   .

14.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
15.

This bullseye demonstrates...

a)

High Accuracy & High Precision

b)

High Accuracy & Low Precision

c)

Low Accuracy & High Precision

d)

Low Accuracy & Low Precision

16.

Describe the accuracy and precision of the image

a)

Very accurate and somewhat precise

b)

Very accurate but not precise at all

c)

Not accurate at all but very precise

d)

not accurate and not very precise

17.

Be

(a)  

18.

Mg

(a)  

19.

Y

(a)  

20.

Sb

(a)  

21.

Pt

(a)  

22.

Re

(a)  

23.

Cr

(a)  

24.

Sr

(a)  

25.

Si

(a)  

26.

Ce

(a)  

27.

Nihonium

(a)  

28.

Mercury

(a)  

29.

Potassium

(a)  

30.

Tin

(a)  

31.

Rhodium

(a)  

32.

Thulium

(a)  

33.

Protactinium

(a)  

34.

Palladium

(a)  

35.

Astatine

(a)  

36.

Dubnium

(a)  

37.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
38.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
39.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
40.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
41.
How did Mendeleev arrange the elements?
a)
alphabetical 
b)
density
c)
melting point
d)
atomic mass
42.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
43.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
44.

6.15: Which of these is not a property of noble gases?

a)

Colourless

b)

Odourless

c)

Flammable

d)

Gas at room temperature

45.

The reason that Noble Gases do not react is because

a)

Their outer electron shell is filled

b)

Their inner electron shell is filled

c)

They are able to bond to fill their outer shell

d)

None of the above, Noble Gases are highly reactive

46.
Another term for being chemically inactive is...
a)
Inert
b)
Inbert
c)
Insert
d)
Inmert
47.
How many elements are in the Noble Gas family?
a)
24
b)
13
c)
6
d)
18
48.

What is the atomic mass for nickel?

a)

58.693

b)

28

c)

30.693

d)

86.693

49.

What is the atomic number for boron?

a)

15.811

b)

5

c)

5.811

d)

10.811

50.

If the atomic mass is not given, how do we calculate it?

a)

(protons) + (electrons)

b)

(atomic mass) - (atomic number)

c)

(protons) - (neutrons)

d)

(protons) + (neutrons)

51.

How do we calculate the number of neutrons in an atom?

a)

(atomic number) - (atomic mass)

b)

(atomic mass) - (atomic number)

c)

(atomic mass) + (atomic number)

d)

atomic mass only

52.

An ion is an atom that has an electrical charge.

a)

true

b)

false

53.

Electrons have a positive charge.

a)

true

b)

false

54.

Atoms have a total charge of zero if the number of protons and the number of electrons are equal.

a)

true

b)

false

55.

If the atom has more protons, it is left with a negative charge.

a)

true

b)

false

56.

We use the sign "+" next to the atom's symbol to show that the ion has a positive charge.

a)

true

b)

false

57.

We use the "-" sign next to the atom's symbol to show that the ion has a negative charge.

a)

true

b)

false

58.

A cation is an ion with a positive charge.

a)

true

b)

false

59.

An anion is an ion with a negative charge.

a)

true

b)

false

60.

Who is credited as the first person to explain matter with atoms?

a)

Democritus

b)

John Dalton

c)

Erwin Schrodinger

d)

Benedict Spinoza

61.

Democritus' idea of atoms is considered _______ because he only discussed his ideas.

a)

Unscientific

b)

Scientific

62.

John Dalton was important for using experiments to verify the atomic hypothesis. How many postulates did he develop from them?

a)

5

b)

2

c)

1

d)

4

63.

JJ Thompson discovered what in 1897?

a)

Electron

b)

Proton

c)

Neutron

d)

Neutrino

64.

Thompson's Model of the atom was called the Plum Pudding model. What were its features?

a)

Positive mass core

b)

Sprinkles of electrons on the surface of matter

c)

Ring of electrons

d)

Hexagons

65.

Niels Bohr's Model is also called the

a)

Planetary Model

b)

Nebular Model

c)

Quantum Model

d)

Electron Hover Model

66.

Who is considered the father of Chemistry?

a)

Robert Boyle

b)

John Dalton

c)

Antoine Lavoisier

d)

Albert Einstein

67.

Through the work of Mosely, how do we order the elements now in the Periodic Table?

a)

Atomic Mass

b)

Atomic Number

c)

Electron Configuration

d)

Rest Mass

68.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
69.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
70.

Freezing

a)

Solid to gas

b)

Liquid to solid

c)

Gas to solid

71.

Boiling

a)

liquid to gas

b)

gas to solid

c)

gas to liquid

72.
Which state of matter has a definite shape?
a)
solid
b)
liquid
c)
gas
73.

The state of matter that has no definite size or shape is

a)

Solid

b)

Liquid

c)

Gas

74.

Solid to Gas

a)

Deposition

b)

Sublimation

c)

Evaporation

75.

Liquid to Gas

a)

Condensation

b)

Evaporation

c)

Sublimation

76.

Particles move relative to each other, but remain in contact with each other.

a)

solid

b)

liquid

c)

gas

77.

The amount of space something takes up is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

78.

Oobleck was an example of a

a)

Subpar mediocre experiment

b)

Non-newtonian fluid

c)

Amorphous solid

d)

Colloid

79.

The soap-powered boat uses what effect?

a)

Marangoni

b)

Coriolis

c)

Magnus

d)

Coanda

80.

A substance that has the same number of protons but may have a different number of neutrons

a)

Atom

b)

Element

c)

Isotope

d)

Ion

81.

Oxygen-17 has how many neutrons?

a)

8

b)

9

c)

10

d)

7

82.

Uranium 235 has how many neutrons?

a)

143

b)

140

c)

92

d)

235

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