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Chemistry Unit 3 Review

Total questions: 38

Worksheet time: 34mins

Name
Class
Date
1.

TiO2

a)

titanium(II) oxide

b)

titanium(IV) oxide

c)

titanium(II) oxygen

d)

titanium(III) oxide

2.

Ca(NO3)2

a)
calcium nitrite
b)

calcium(II) nitrate

c)
calcium nitrate
d)
carbon nitrate
3.

FePO4

a)
iron phosphate
b)

iron(II) phosphate

c)

iron(IV) phosphate

d)

iron(III) phosphate

4.

Magnesium Sulfate

a)

MgSO4

b)

MgS

c)

Mg(SO4)2

d)

Mg2SO4

5.

Ca3X2: What is the charge on X?

a)

2+

b)

3-

c)

2-

d)

5-

6.

Chromium(III) Hydroxide

a)

Cr3OH

b)

Cr(OH)3

c)

CrOH3

d)

Cr2O3

7.

Iron(II) Nitride

a)

FeN

b)

Fe(NO3)2

c)

FeNO3

d)

Fe3N2

8.

Which of the following is NOT correct?

a)

Hydroxide: OH-

b)

Nitrate: N3-

c)

Sulfate: SO42-

d)

Sulfide: S2-

9.

An ionic compound made Cu2+ and O2- would be named

a)
copper oxygen.
b)
copper oxide.
c)
dicopper oxide.
d)
copper(II) oxide.
10.

Ca+2 + Br- + Br-  =

a)

Br2Ca

b)
CaBr
c)

Ca(Br)2

d)
CaBr2
11.

What does a roman numeral tell you?

a)

how many of the transition metal cation are in the formula

b)

the charge on transition metal cation

c)

How many anions are combined with the transition metal

d)

How many polyatomic ions you have

12.

Cu₃N₂

a)

copper(III) nitride

b)

copper(II) nitride

c)
copper nitride
d)
tricopper dinitride
13.

Calcium Iodide

a)

CaI2

b)

CaI

c)

Ca(IO3)2

d)

Ca2I

14.

The electron configuration of an atom is 1s22s22p6.  The total number of electrons in the atom is 

a)
3
b)
6
c)
8
d)
10
15.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
16.

How many electrons can a s-subshell hold?

a)
1
b)
2
c)
8
d)
0
17.

What element is represented by this subshell diagram?

a)

Ne

b)

K

c)

Ca

d)

Ar

18.

Which is the correct magnesium ion?

a)
Mg+
b)
Mg2+
c)
Mg-
d)
Mg2-
19.

Which of the following is not a correct ionic charge?

a)

Na+

b)

Ca2+

c)

Al2+

d)

O2-

20.

What is the condensed electron configuration for Sulfur atom?

a)

[Ar] 3p4

b)

[He] 3s23p4

c)

[Ne] 3s23p4

d)

[Na] 3s23p3

21.

What atom matches this electron configuration?

[Xe] 6s2 4f14 5d9

a)

Mercury

b)

Gold

c)

Platinum

d)

Thallium

22.

(Honors) What electron configuration matches an oxygen ion (O2-)?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

23.

(Honors) This orbital diagram represents:

a)

C

b)

B

c)

N

d)

O

24.

(Honors) What is incorrect about this orbital diagram?

a)

Both arrows in the 2p box should be pointing up

b)

There is nothing incorrect with this diagram

c)

In the there should only be 1 electron in the first 2p box and one electron in the 2nd 2p box

d)

All the arrows should be pointing up.

25.

(Honors) How many unpaired electrons in a nickel atom?

a)

1

b)

2

c)

5

d)

None

26.

The maximum number of electrons that can be placed in a p-subshell.

a)

2

b)

6

c)

10

d)

14

27.

How many electrons in the 2p sub shell?

a)

1

b)

8

c)

4

d)

2

28.

Which of the following subshells is NOT found in this element?

a)

1s2

b)

3p6

c)

3d10

d)

4s1

29.

Molecular Covalent Compound...

a)

Conduct

b)

Tend to be Hard Solids

c)

Tend to be liquids or gases

d)

Contain metals and non-metals

30.

Which of the following conduct electricity? Pick 2.

a)

Ionic

b)

Molecular Covalent

c)

Network Covalent

d)

Metallic

31.

Do not dissolve in water. Pick 2

a)

Ionic

b)

Molecular Covalent

c)

Network Covalent

d)

Metallic

32.

Made of metal atoms and non-metal atoms

a)

ionic

b)

metallic

c)

molecular covalent

d)

network covalent

33.

Hard solids that will not conduct or dissolve

a)

ionic

b)

metallic

c)

molecular covalent

d)

network covalent

34.

(Honors) Which of the following electron configurations represents Fe2+?

a)

[Ar]4s23p6

b)

[Ar]4s23p8

c)

[Ar]3p6

d)

[Ar]4s23p10

35.

What subshell is highlighted in blue???

a)

5s

b)

2d

c)

3d

d)

4d

36.

Which of the following shows the rule of zero charge for AlF3?

a)

3(1+) + (3-) = 0

b)

(3+) + (1-) = 0

c)

(3+) + 3(1-) = 0

d)

2(3+) + 3(2-) = 0

37.

Which of the following has 11 total valance electrons and is not a correct formula?

a)

CaCl2

b)

Ba3N

c)

Na3O

d)

K3P2

38.

Metal X has 2 valence electrons. Non-metal Y has 6 valence electrons. What is the formula for the ionic compound between X and Y?

a)

XY2

b)

XY

c)

X2Y

d)

X3Y2

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