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Chemistry Semester 2 Final

Total questions: 40

Worksheet time: 56mins

Name
Class
Date
1.

Calcium nitrate is mainly used as a fertilizer. The compound as the formula Ca(NO3)2 .

What is the molar mass of this compound?

a)

102.09 g/mol

b)

164.10 g/mol

c)

70.09 g/mol

d)

130.10 g/ol

2.

What is the molar mass of Al(NO3)3?

a)

62.01 g/mol

b)

88.99 g/mol

c)

151.00 g/mol

d)

213.01 g/mol

3.

Select the correct molar ratio taken from this balanced equation:


1 N­2 + 3 H2 --> 2 NH3

a)

1 mol N­2 = 2 mol NH3

b)

2 mol N­2 = 1 mol NH3

c)

3 mol N­2 = 3 mol NH3

4.

Use the Mole Map

What are the steps to find grams of "B" if you are given grams of "A"?

a)

Divide by Molar Mass of A

b)

Use Mole Ratio from Balanced Equation to get Mole of B

c)

Multiply Molar Mass of B to get Mass of B

1)
2)
3)
5.

You want to determine the mass of 3.75 moles of Mg3N2 .


Which of the following shows the correct set-up for this calculation?

a)

b)

6.
Which of the following is an unbalanced equation?
a)
CaCO3 --> CaO + CO2
b)
PbO2 + 2H2-->2Pb + H2O
c)
2Na+ 2H2O-->2NaOH + H2
d)
CS2 + 2O2 --> CO2 + 2SO2
7.

Which of the following have been changed or altered due to climate change ?

a)

droughts

b)

flooding

c)

melting of polar ice caps

d)

all of the above

8.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
9.

The main human activity that releases greenhouse gases is

a)

riding bicycles

b)

burning fossil fuels

c)

texting on cellphones

d)

eating meat

10.

Click and drag the labels to its correct place in the Carbon Cycle

a)

Burning of Fossil Fuel

b)

Decomposition

c)

Photosynthesis

d)

Respiration (Animals)

e)

Respiration (Plants)

1
2
3
4
5
1)
2)
3)
4)
5)
11.

Based on the uneven processes that removes and places Carbon in the atmosphere, what will happen over time?

a)

Low amount of Carbon in the atmosphere

b)

Same amount of Carbon in the atmosphere

c)

High amount of Carbon in the atmosphere

12.

An electron difference between both sides is called

a)

voltage

b)

current

13.

The _________is the electrode where NEGATIVE charges are stored.

a)

anode

b)

cathode

14.

The _________is the electrode where POSITIVE charges are stored.

a)

anode

b)

cathode

15.

Label the + and - sides of the periodic table

a)

Electron flow --->

b)

Negative side (-)

c)

Positive side (+)

1
2
3
1)
2)
3)
16.

Which 2 metals will give you the highest voltage battery?

a)

Silver & Silver

b)

Silver & Copper

c)

Silver & Zinc

d)

Silver & Magnesium

17.

Label parts of the lemon battery

a)Anode ( - )
b)Cathode ( + )
c)Electrolyte
1
2
3
1)
2)
3)
18.

Match the following

a)
1.

combustion

b)
2.

synthesis

c)
3.

decomposition

d)
4.

single replacement

e)
5.

double replacement

19.

Which option is correctly balanced?

a)

Fe + H2O --> Fe3O4 + H2

b)

3 Fe + H2O --> Fe3O4 + H2

c)

3 Fe + 4 H2O --> Fe3O4 + 4 H2

d)

3 Fe + 2 H2O --> Fe3O4 + H2

20.

Label parts of a chemical equation here

a)

Products

b)

Reactants

c)

Subscript

d)

Coefficient

1
2
3
4
1)
2)
3)
4)
21.

Which element has 2 valence electrons and is in period 6?

a)

O

b)

He

c)

Ba

22.
Name group 1A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
d)
halogens
23.
Name group 2A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
d)
transition metals
24.
Name group 8A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
25.
a)
Metals
b)
Nonmetals
c)
Metalloids
26.
a)
Metals
b)
Nonmetals
c)
Metalloids
27.
a)
Metals
b)
Nonmetals
c)
Metalloids
28.

What is the charge on an Aluminum (Al) ion?

a)
3
b)
+3
c)
+2
d)
+1
29.

What is the charge on a chloride (Cl) ion?

a)
-1
b)
1
c)
+2
d)
+1
30.
What is the charge of Neon?
a)
0
b)
+1
c)
-1
d)
1
31.

How many valence electrons does Hydrogen (H) have?

a)
1
b)
2
c)
3
d)
4
32.

How many valence electrons does Calcium (Ca) have?

a)
2
b)
4
c)
6
d)
7
33.

Label parts of this pH scale

a)

Drain cleaner

b)

Water

c)

Acid

d)

Base

e)

Neutral

f)

Car Battery

1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
34.

Label the solute and solvent in this solution

a)

Solvent

b)

Solute

1
2
1)
2)
35.

Match the following images with the correct factor of chemical reaction.

a)

1.

Temperature

b)

2.

Surface Area

c)

3.

Concentration

d)

4.

Stirring

36.

What elements generally make an IONIC bond?

a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
37.

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

a)

2

b)

4

c)

6

d)

8

e)

10

38.

What type of bonding does this picture show?

a)

Ionic

b)

Covalent

39.

What type of bonding does this picture show?

a)

Ionic

b)

Covalent

40.

What elements generally make a COVALENT bond?

a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above

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