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Chemistry Final Review

Total questions: 42

Worksheet time: 47mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
Which orbital shows a violation of Hund's Rule?
a)
A
b)
B
c)
C
d)
D
3.
Which orbital shows a violation of the Aufbau Principle?
a)
A
b)
B
c)
C
d)
D
4.
Which of the following is the correct electron configuration for a sodium atom?
a)
1s1   2s1  3s1 
b)
1s2   2s2  2p6  3s1 
c)
1s2 2s2 2p6 3s2 3p6 4s1
d)
1s2   2s1
5.
Which of the following is the correct electron configuration for a phosphorus  atom?
a)
1s2 2s2 2p6 3s2 3p3
b)
1s2   2s2   3p3 
c)
1s2 2s2 2p6 3s2 3p6 
d)
1s2 2s2  3s2 2p6 3p3
6.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
7.

This is a correct dot diagram for oxygen (O)?

a)

true

b)

false

8.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
9.

Match the following elements with their correspomding number of valence electrons

a)

1

1.

Hydrogen

b)

2

2.

Magnesium

c)

3

3.

Aluminum

d)

7

4.

Bromine

e)

6

5.

Oxygen

10.
When metals bond with non-metals they form what type of bonds
a)
covalent
b)
ionic
c)
cooperative
d)
lewis
11.
How do the following two elements bond together?
Cr3+  O2-         
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
12.
The proper formula for magnesium hydroxide:
a)
MgOH
b)
Mg2OH
c)
Mg(OH)2
d)
Mg2OH2
13.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

14.

Name the ionic compound SnSe2

a)

Tin diselenide

b)

Tin (IV) Selenide

c)

Tin selenide

d)

Tin (II) triselenide

15.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
16.
Groups on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
17.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

18.

The yellow elements (right side) are called 

a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
19.

The blue elements (left side) are called 

a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
20.

Is the following equation balanced?

Al + O2 ---> 2Al2O3

a)

YES

b)

NO

21.

What is the number before a chemical formula called?

Example: 2H2 + O2 ---> 2H2O

a)

Coefficient

b)

Atom

c)

Subscript

d)

Equation

22.

Balance this equation:

H2 + Cl2 ---> HCl

a)

It is balanced.

b)

H2 + Cl2 ---> 2HCl

c)

3H2 + Cl2 ---> 6HCl

d)

H2 + 3Cl2 ---> 6HCl

23.

What is the Law of Conservation of Mass?

a)

It states that matter cannot be created or destroyed.

b)

It states that energy cannot be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that sound can be created or destroyed.

24.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
25.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
26.

Which of the following choices gives the correct coefficients of the chemical equation, _Al + _O2 → _ Al2O3 respectively?

a)

2,2,2

b)

2,3,2

c)

4,2,2

d)

4,3,2

27.

P4 + 3 O2 ----> 2 P2O3

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

28.

CaCO3 ----> CaO + CO2

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

29.

Pb + FeSO4 ----> PbSO4 + Fe

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

30.

MgCl2 + Li2CO3 ----> MgCO3 + 2 LiCl

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

31.

In the equation 2Al2O3 → 4Al + 3O2, what is the mole ratio of aluminum to oxygen?

a)

10:6

b)

3:4

c)

4:3

d)

2:3

32.
2H2   +   O2  →  2H2O
How many moles of water can be produced if 8 moles H2 are used?
a)
4 moles
b)
8 moles
c)
16 moles
d)
2 moles
33.
N2 +  3H2 → 2NH3 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
a)
6
b)
2
c)
3
d)
1
34.
Which equation represents Dalton's Law?
a)
e=mc2
b)
PV=nRT
c)
P1/T1=P2/T2
d)
Ptotal=P1, P2, P3...
35.
Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?
a)
483torr
b)
270torr
c)
1235torr
36.
The partial pressure of gas X is 340 torr. The partial pressure of gas Y is 264 torr. The partial pressure of gas Z is 100 torr. What is the total pressure exerted by the gases in this system? 
a)
76 torr
b)
440 torr
c)
604 torr
d)
704 torr
37.

Water has a neutral because

a)

it has more H+ ions than OH-

b)

it has more OH- ions than H+

c)

it does not produce any ions

d)

it has an equal amount of H+ and OH- in solution

38.

How many level are there in pH scale ?

a)

1

b)

7

c)

11

d)

14

39.

A liquid has a pH of 1. What does this mean?

a)

It must be sodium hydroxide solution

b)

It is strongly acidic

c)

It is weakly akline

40.

A liquid has a pH of 8. What does this mean?

a)

it is neutral

b)

It is weakly acidic

c)

it is weakly akline

41.

When bases are mixed with water, they release ​ (a)   ions.

Choose from the below words
hydroxide (OH-)
hydrogen (H+)
42.

When acids are mixed with water, they release ​ (a)   ions.

Choose from the below words
hydrogen (H+)
hydroxide (OH-)

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