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Honors FINAL EXAM review part 1 for 24-25 (mostly Unit 5)

Total questions: 24

Worksheet time: 38mins

Name
Class
Date
1.

What is the correct name for MgBr2?

a)

magnesium (II) bromide

b)

magnesium dibromide

c)

magnesium bromide

d)

monomagnesium dibromide

2.

Formula for barium sulfide

a)

B2S3

b)

BaS

c)

Ba2S

d)

BaS2

3.

Formula for lead (II) chloride

a)

PbCl2

b)

Pb2Cl

c)

Pb2Cl3

d)

Pb3Cl2

4.

Name for LiOH

a)

lithium hydrogen oxide

b)

lithium hydroxide

c)

lithium (II) hydroxide

d)

lithium (I) hydroxide

5.

What is the correct formula of phosphorus trichloride?

a)

P2Cl3

b)

P3Cl3

c)

PCl3

d)

PCl5

6.
Ionic bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
7.
Which of the following is a property of an ionic compound?
a)
high melting point
b)
soft
c)
malleable
d)
liquid at room temperature
8.
The proper formula for magnesium hydroxide:
a)
MgOH
b)
Mg2OH
c)
Mg(OH)2
d)
Mg2OH2
9.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
10.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
11.

Draw a Lewis Structure for HCN. In your structure, what kind of bond is between the C and N?

a)

Single

b)

Double

c)

Triple

12.

Draw a Lewis Structure for CH2O. Which of the following is in your structure? (select all that apply)

a)

Multiple double bonds

b)

Multiple single bonds

c)

One double bond

d)

One single bond

e)

A lone pair

13.

Draw a Lewis Structure for CCl4. Based on your structure, how many double bonds are in the molecule?

a)

0

b)

1

c)

2

d)

3

14.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
15.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
16.
Ionic or covalent?
H2O
a)
Ionic
b)
Covalent
17.

What percent composition of carbon in carbon monoxide (CO) ? (answer is rounded to 2 sig figs)

a)

29%

b)

43%

c)

57%

d)

73%

18.

What percent composition of bromine in magnesium bromide (MgBr2) ? (answer is rounded to 2 sig figs)

a)

13%

b)

43%

c)

63%

d)

87%

19.
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
a)
SO
b)

SO2

c)

SO3

d)

SO4

20.

What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180 g?

a)
CH2O
b)
C2H4O2
c)
C4H8O4
d)
C6H12O6
21.
What is the name for Li₃P ?
a)
trilithium monophosphide
b)
lithium phosphide
c)
trilithium phosphide
d)
monolithium triphosphide
22.

What is the formula for calcium phosphate?

a)
CaPO4
b)
Ca2(PO4)3
c)
Ca3PO4
d)
Ca3(PO4)2
23.

What is the correct name of Cu3N2?

a)

Copper (I) Nitride

b)

Copper (II) Nitride

c)

Copper (III) Nitride

d)

Copper Nitride

24.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO