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Chemistry final

Total questions: 25

Worksheet time: 37mins

Name
Class
Date
1.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

2.
Which is an example of a physical property?
a)
rusting
b)
boiling point
c)
combustion
d)
reactivity with water
3.
Which is described as the force holding atoms together?
a)
formula unit
b)
cation
c)
lattice
d)
chemical bond
4.
Which type of bond has one pair of electrons shared between atoms?
a)
ionic
b)
single covalent
c)
metallic
d)
double covalent
5.
Which is the charge that results when oxygen becomes an ion?
a)
+3
b)
+2
c)
-2
d)
-3
6.
Which is the correct name for the compound FeS?
a)
iron (II) sulfide (II)
b)
iron (II) sulfide
c)
iron (I) sulfide
d)
iron sulfide
7.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
8.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
9.
Which element is a noble gas?
a)
a. krypton
b)
b. chlorine
c)
c. antimony
d)
d. manganese
10.
Covalent bonds are formed when electrons are
a)
a. transferred from one atom to another
b)
b. captured by the nucleus
c)
c. mobile within a metal
d)
d. shared between two atoms
11.

What are the coefficients that will balance the skeleton equation below?

AlCl3 + NaOH → Al(OH)3 + NaCl

a)

1,3,1,3

b)

3,1,3,1

c)

1,1,1,3

d)

1,3,3,1

12.

An ionic bond is between

a)

metal and metal

b)

metal and nonmetal

c)

nonmetal and nonmetal

13.

A mole is:

a)

The SI unit for mass

b)

The SI unit for the amount of a substance

c)

The SI unit for volume

d)

The SI unit for area

14.

What is the type of reaction shown above?

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

15.

What is the octet rule?

a)

Elements will have 8 valence in the outermost electron shell

b)

Elements will have 8 protons in the nucleus

c)

Elements will have 8 neutrons on average

d)

Elements must form an octopus like structure

16.
How many moles are in 16.94g of water?
a)
16.94 mol H2O
b)
0.9401 mol H2O
c)
305.3 mol H2O
d)
1.063 mol H2O
17.

How many molecules of water are in a 821.3 g sample?

a)

45.58 molecules

b)

8.232 x 1025 molecules

c)

8.909 x 1027 molecules

d)

2.744 x 1025 molecules

18.
What molecule could this be? 
a)
BF3
b)
CH4
c)
H2O
d)
CO2
19.
The bond angle for a trigonal planar molecule is 
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
20.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
21.
What is the bond angle for this molecule?
a)
109.5
b)
120
c)
107
d)
90
22.
What molecular shape is the structure shown here? (H2O)
a)
tetrahedral
b)
trigonal planar
c)
bent
d)
trigonal pyramidal
23.

What geometry will this molecule have?

a)

bent

b)

tetrahedral

c)

linear

d)

pyramidal

24.

Convert 375 K to Celsius (°C).

a)

1.37

b)

102

c)

375

d)

546

25.
Charles's law shows the relationship between which two factors of a gas ?
a)
volume and temperature 
b)
volume and pressure 
c)
pressure and volume
d)
volume and mass

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