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Fall Semester Final Review (2022)

Total questions: 67

Worksheet time: 6hrs 45mins

Name
Class
Date
1.
What do two or more elements combine (chemically) to form?
a)
a compound
b)
an element
c)
a substance
d)
a solution
2.

_______ are made from a combination of 2 or more elements.

a)

Colloids

b)
Pure Substances
c)
Compounds
d)
Elements
3.
Substance with atoms that are all alike.
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
4.
All matter is made up of .....
a)
Compounds
b)
Atoms
c)
Molecules
d)
Sunshine
5.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
6.

What are compounds, molecules, and elements all examples of?

a)

pure substances

b)

homogeneous mixtures

c)

heterogeneous mixtures

7.

What is potassium chloride (KCl) an example of?

a)

element

b)

molecule

c)

compound

8.

Water is an element.

a)

True

b)

False - water is compound because it is made of two different elements

c)

False - water is a homogeneous mixture because it is made of two different elements

9.

Which of the following is pure substance?

a)

milk

b)

coffee

c)

water

d)

hydrogen (H)

10.
The molecules in the picture are tightly held together with little movement. They have shape and energy.  Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
11.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
12.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
13.

The law of conservation of matter states

a)

matter is anything with mass and volume

b)

matter can neither be created nor destroyed only transferred

c)

matter is always in motion; therefore, it has kinetic energy

d)

matter can be destroyed but never created

14.
What Periodic Table family is represented by the Lewis dot diagram?
a)
Halogens
b)
Alkali Metals
c)
Transition Metals
d)
Noble Gases
15.
What group on the Periodic Table contains the elements of the alkaline earth family?
a)
1
b)
2
c)
17
d)
18
16.
How many valence electrons does an alkaline earth metal have? 
a)
1
b)
2
c)
7
d)
8
17.
An atom that has the electron configuration of 1s22s22p63s23p64s23d5 is classified as
a)
A transition element
b)
a noble gas
c)
an alkali metal
d)
an alkaline earth metal
18.
Which is a metal?
a)
Rhodium (Rh)
b)
Arsenic (As)
c)
Hydrogen
d)
Argon (Ar)
19.

choose the correct statement

a)

the vertical column in the periodic table is called period

b)

the vertical column in the periodic table is called group

c)

the horizontal row in the periodic table is not called period

d)

none of the above

20.

Electronic configuration of phosphorus is ........

a)

1s22s22p53s23p4

b)

1s22s22p53s23p3

c)

1s22s22p63s23p3

d)

1s22s22p63s23p4

21.
Which compound will most likely be formed when lithium (Li) and nitrogen (N) are chemically combined?
a)
LiN
b)
LiN3
c)
Li3N
d)
Li3N3
22.
Which element has the same number of valence electrons as Krypton (Kr)?
a)
Neon (Ne)
b)
Fluorine (F)
c)
Chlorine (Cl)
d)
Selenium (Se)
23.
What is the correct name for the compound NaNO3?
a)
sodium nitrate
b)
sodium nitrous acid
c)
sodium nitrogen oxide
d)
sodium nitrogen trioxide
24.
What type of bond would be formed between Lithium and oxygen?
a)
covalent
b)
ionic
c)
metallic
d)
dispersion
25.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 nonmetals
c)
metal
d)
none of the above
26.
Which group of elements would be most likely to have a  -1 charge(oxidation number)  when they form an ion?
a)
Group 1
b)
Group 2
c)
Group 13
d)
Group 17
27.
A charged particle that has gained or lost electrons is called a _____.
a)
molecule
b)
ion
c)
isotope
d)
element
28.
A cation is a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
29.
A anion will be a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
30.
Nitrogen will form which of the following ions?
a)
N
b)
N-3
c)
N-5
d)
N+5
31.
Beryllium will ____ valence electrons when forming an ionic bond.
a)
lose 4
b)
gain 4
c)
lose 2
d)
gain 2
32.
In the compound aluminum oxide, which is the cation?
a)
Al+3
b)
Al
c)
O-2
d)
O
33.
Ionic bonds happen because of the ____ of valence electrons.
a)
sharing
b)
transfer
34.
Nitrogen will ____ valence electrons when forming an ionic bond.
a)
gain 1
b)
lose 1
c)
gain 3
d)
lose 3
35.
Nitrogen will do what to gain a stable octet?
a)
Lose 3
b)
Gain 3
c)
Lose 1
d)
Gain 2
36.
Which of the following would produce an anion?
a)
Ca
b)
Al
c)
K
d)
F
37.

What force holds together cations and anions in ionic bonds?

a)

The electrical attraction between the positive cation and the negative anion

b)

The electrons shared between the positive cation and the negative anion

c)

The magnetic attraction between the positive cation and the negative anion

d)

The gravitational attraction between two pieces of matter

38.

Which pair of elements should form an ionic bond?

a)

Carbon and Oxygen

b)

Sodium and Fluorine

c)

Iron and Chromium

d)

Xenon and Silicon

39.

Elements in Group 2 form

a)

+2 ions

b)

-2 ions

c)

+3 ions

d)

-1 ions

40.

How do the following two ions bond together?

Cr3+ O2-

a)

CrO

b)

Cr3O2

c)

Cr2O3

d)

CrO3

41.

The proper formula for magnesium hydroxide:

a)

MgOH

b)

MgOH2

c)

Mg(OH)2

d)

Mg2OH2

42.

How would you write the isotope name from this nuclide symbol?

a)

Sodium-23

b)

Sodium-11

c)

Sodium-12

d)

Sodium-22

43.
An atom is electrically neutral when
a)
protons and neutrons are the same
b)
protons and electrons are the same
c)
neutrons and electrons are the same
44.

These three isotopes of carbon have different -

a)

Atomic numbers

b)

Mass numbers

c)

Numbers of protons

d)

Symbols

45.

_______ are atoms with the same number of protons but varying numbers of neutrons.

a)

ions

b)

elements

c)

allotropes

d)

isotopes

46.

Which of these pairs of atoms are isotopes?

a)

pair A

b)

pair B

c)

pair C

47.

The average atomic mass of this unknown element should be closest to what mass?

a)

78.92

b)

80.92

c)

50.69

d)

49.31

48.

An element has three different isotopes. One has a mass of 35.00 amu at 75.00%; another has a mass of 36.00  amu at 20.00%; and another has a mass of 38.00  amu at 5.00%. What is the average atomic mass of this element?

a)

34.33 amu

b)

35.35 amu

c)

32.11 amu

d)

38.01 amu

49.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
50.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
51.

What subatomic particle is responsible for the spectral lines seen in emission spectra diagrams?

a)

electrons

b)

protons

c)

neutrons

52.

Which has the LONGEST wavelength and, therefore, the LOWEST frequency/energy

a)

Gamma Rays

b)

Visible Light

c)

Ultraviolet

d)

Infrared rays

53.

Which EM waves have the longest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

54.
Violet light has a wavelength of
4.10 x 10-12  m. What is the frequency?
a)
1.23 x 10^ -3 Hz
b)
7.31 x 10^ 19 Hz
c)
1.37 x 10^12 Hz
d)
3.0 x 10^ 8 Hz
55.

Use the correct significant figure to calculate the final answer of this question.

3.02×2.3=3.02\times2.3=  

a)

6.946

b)

6.95

c)

6.9

d)

7.0

56.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
57.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
58.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
59.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
60.

What is the reading of the meniscus?

a)

36mL

b)

45mL

c)

35.0mL

d)

30.5mL

61.

What is the unit for density ?

a)

g/ mL

b)

g

c)

gcm3\frac{g}{cm^3}  

d)

cm4cm^4  

62.
In the picture, the mass of the block is 200 g, the dimensions of the block are 6 cm by 4 cm by 5 cm.  What is its density?
a)
1.67g/cm3
b)
13.33 g/cm3
c)
0.60 g/cm3
d)
 24000 g/cm3
63.

What is 3.789 rounded to the nearest hundredth?

a)

3.78

b)

3.80

c)

3.79

d)

3.789

64.
Write in scientific notation:
0.00071363
a)
7.1363 x 10-3
b)
7.1363 x 10-4
c)
7.1363 x 104
d)
7.1363 x 103
65.

How would you write 0.0005 in scientific notation?

a)

50 x 10-5

b)

5 x 10-4

c)

5 x 10-3

d)

.5 x 103

66.

Perform the following operation: 19.03.714\frac{19.0}{3.714}  

(your answer should reflect the appropriate number of sig figs)

a)

5.116

b)

5.12

c)

5.1

d)

5.1160

67.

Which zero's never count for significant figures?

a)

Leading Zero's

b)

Trailing Zero's

c)

Captive Zero's

d)

All the Zero's

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