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Final Exam Review

Total questions: 30

Worksheet time: 39mins

Name
Class
Date
1.
Balance this equation:
___NH3 + ___O2 --> ___NO + ___H2
a)
4NH3 + 5O2 --> 4NO + H2O
b)
It's already balanced. 
c)
4NH3 + 5O2 --> 4NO + 6H2
2.
Which of the following is an example of synthesis?
a)
Na + Br--> NaBr
b)
KClO--> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
3.
AB → A + B
a)
Synthesis
b)
Decomposition
c)
Combustion
d)
Double Displacement
4.

2Na + 2H2O ---> 2NaOH + H2

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Combustion

5.

What type of reaction is this?


H3PO4 + Ca(OH)2 --> Ca3(PO4)2 + H2O

a)

Synthesis

b)

Single Replacement

c)

Acid-Base

d)

Combustion

6.
What is the molar mass of Mg3N2?
a)
191.6 g/mol
b)
76.64 g/mol
c)
38.32 g/mol
d)
100.95 g/mol
7.

How many moles are there in 5g of carbon?

a)

60 mol

b)

17 mol

c)

0.42 mol

d)

7 mol

8.

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm. R=0.0821

(PV=nRT)

a)

7.18 L

b)

7.81 L

c)

4.63 L

d)

4.36 L

9.

What will happen to the volume of a gas if the pressure increases?

a)

Increase

b)

Decrease

c)

Nothing

d)

Explosion!

10.

In Charles' Law if temperature of any gas is increased its volume will

a)

increase

b)

decrease

c)

remains the same

11.
You have a gas that has a pressure of 2 ATM and a volume of 10L.  What would be the new volume if the pressure was changed to 1 ATM?
(P1V1=P2V2)
a)
5 L
b)
20 L
c)
It would stay at 10L
d)
1 L
12.
When no more sugar will dissolve in a glass of water, the solution is
a)
unsaturated
b)
saturated
c)
supersaturated
d)
suspended
13.
Graph that shows the amount of solute that can be dissolved in 100 g of water at a certain temperature.
a)
Solubility curve
b)
Saturation curve
c)
Concentration curve
d)
Molarity curve
14.
Describe a solute.
a)
part of solution present in largest amount
b)
the substance that gets dissolved
c)
the substance that does the dissolving
d)
surrounds and breaks apart
15.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
16.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
17.
A solution with a pH of 7.0 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
18.
HBr is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
19.
LiOH is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
20.
BASE + ACID ----> SALT +?
a)
water
b)
oxygen
c)
hydrogen ion
d)
hydroxide ion
21.
Endothermic reactions absorb heat and feel _________
a)
warm
b)
cold
22.
Exothermic reactions release heat and feel ___________
a)
warm
b)
cold
23.
energy in exothermic reactions are
a)
released
b)
absorbed
24.

What does the "c" stand for in Q=mcT?

a)

heat

b)

mass

c)

specific heat

d)

change in temperature

25.

A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of .10 J/g°C, what is the mass of the iron sample?

(Q = m c ΔT)

a)

25g

b)

30g

c)

20g

d)

50g

26.
A 500g piece of Aluminum has a temperature of 7 degrees. What is the heat energy produced?  Specific heat of Aluminum is .900 J/gC.
(Q = m c ΔT)
a)
3000 J
b)
3000 g
c)
3150 J
d)
3150 g
27.

Which reaction type produces carbon dioxide and water?

CARBON COMPOUND + O2 → CO2 + H2O

a)

double displacement

b)

combustion

c)

single displacement

d)

decomposition

28.
A nuclear reaction where a nucleus splits into two smaller nuclei is... 
a)
Fission
b)
Fusion
c)
Gamma decay
d)
Beta decay
29.
Balance the following equation:
146C --> 0-1e + ________
a)
145B
b)
146C
c)
147N
d)
42He
30.
Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.
a)
Fusion
b)
Fission
c)
Tracing
d)
Decay