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Worksheets

PS 2nd Semester Final Review

Total questions: 95

Worksheet time: 2hrs 8mins

Name
Class
Date
1.
How are covalent bonds explained?
a)
When one atom takes the other atom's electron
b)
When the atom shares an electron with an another atom
c)
When the two nucleus merge
d)
When the neutrons leave the nucleus
2.
Ionic bonds exist between a metal with a non-metal.
a)
True
b)
False
3.
Magnesium (Mg) and Oxygen (O) form an ________ bond.
a)
Ionic
b)
Covalent
c)
Metallic
d)
Nothing
4.
Calcium (Ca) and 2 chlorine (Cl) atoms make a covalent compound.
a)
True
b)
False
5.

Which structures conduct electricity as a liquid but not as a solid?

a)

Metallic

b)

Covalent

c)

Ionic

d)

All of the above

6.

Valence electrons are transferred

a)

Ionic bonds

b)

Covalent bonds

7.

Valence electrons are shared

a)

Ionic bonds

b)

Covalent bonds

8.

Poor electrical conductivity

a)

Ionic compounds

b)

Covalent compounds

9.
LiF
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
10.
MgBr2
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
11.

Carbon and Oxygen will make a ___________ bond.

a)

ionic

b)

covalent

c)

metallic

12.

Nitrogen and Oxygen will make a ____________ bond

a)

ionic

b)

covalent

c)

metallic

13.
The molar mass of an element is equal to its...
a)
Atomic mass
b)
Atomic number
c)
Oxidation number
d)
Valence electrons
14.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
15.
What is the molar mass of CO2?
a)
12
b)
16
c)
32
d)
44
16.

Calculate the molar mass for Al(OH)3

a)

78.0 g/mol

b)

72 g/mol

c)

28 g/mol

d)

25 g/mol

17.
Which problem is balanced?
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
18.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
19.
Balance this equation
_Zn+_HCl-->_ZnCl+_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
20.
Balance this equation.
_CH4 + _O--> _CO+ _H2O
a)
1,2,1,1
b)
2,1,2,1
c)
1,2,1,2
d)
0,2,0,2
21.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
22.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
23.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
24.
4Si   + S8   -->   2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
25.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
26.
2Pb(NO3)2   -->   2PbO +  4NO2  +  O2
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Combustion
27.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Double displacement
28.
3Mg + N2 --> Mg3N2
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Combustion
29.

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

a)

3

b)

7

c)

9

d)

5

30.

What would be considered the weakest base?

a)

8

b)

7.8

c)

11.6

d)

14

31.

Pure water has a pH of 7. Pure water _______.

a)

is a base

b)

is a neutral substance

c)

could be either an acid or a base

d)

is an acid

32.

If a solution is basic which ion will be more present?

a)

H+

b)

K+

c)

OH-

d)

H-

33.

Stronger acids have a pH closer to...

a)

7

b)

14

c)

0

d)

9

34.

Weaker bases have a pH closer to...

a)

8

b)

14

c)

0

d)

4

35.

The pH scale is a range from:

a)

1-7

b)

1-5

c)

0-14

d)

1-14

36.

Bases have a pH of

a)

7

b)

Less than 7

c)

More than 7

37.

Neutralization is the process of an acid and a base reacting to form what? Select all that apply

a)

An ionic salt

b)

Hydronium ions

c)

NaCl

d)

Water

38.

An arrhenius acid

a)

produces hydroxide ions in a solution

b)

is a proton donor

c)

produces hydrogen ions in a solution

d)

is a proton acceptor

39.

An arrhenius base

a)

produces hydroxide ions in a solution

b)

is a proton donor

c)

produces hydrogen ions in a solution

d)

is a proton acceptor

40.

A bronsted lowry base

a)

produces hydroxide ions in a solution

b)

is a proton donor

c)

produces hydrogen ions in a solution

d)

is a proton acceptor

41.

A bronsted lowry acid

a)

produces hydroxide ions in a solution

b)

is a proton donor

c)

produces hydrogen ions in a solution

d)

is a proton acceptor

42.

Identify the true statement about the following reaction:

F- + H2O --> HF +OH-

a)

H2O is a bronsted lowry base

b)

H2O is not an acid or base according to either model

c)

H2O is a bronsted lowry acid

d)

H2O is an arrhenius acid

43.

Is the following compound an acid or a base?


HCl

a)

Acid

b)

Base

44.

Is the following compound an acid or a base?


NH4OH

a)

acid

b)

base

45.

Is the following compound an acid or a base?


HI

a)

acid

b)

base

46.

Is the following compound an acid or a base?


H3PO4

a)

acid

b)

base

47.

In the following chemical equation, which compound is the acid?


HCl + NH3 → NH4+ + Cl

a)

HCl

b)

NH3

c)

NH4+

d)

Cl

48.

In the following chemical equation, which compound is the base?


HCl + NH3 → NH4+ + Cl

a)

HCl

b)

NH3

c)

NH4+

d)

Cl

49.
Acid + Metal --> ?
a)
Salt + Water
b)
Salt + Hydrogen
c)
Salt
d)
Hydrogen
50.

Which of the following metals do not react with acid?

a)

copper

b)

silver

c)

gold

d)

magnesium

51.
A neutralisation reaction produces 
a)
An acid 
b)
A neutral substance 
c)
Only water 
d)
Salt and water 
52.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
53.

Complete the following reaction:

HCl + Mg(OH)2 -->

a)

MgCl2 + H2O

b)

Mg +H2O

c)

MgCl2 + H2

d)

MgCl2 + H2O + CO2

54.

Complete the following reaction:

H3PO4 + NaOH -->

a)

Na3PO4 + H2O

b)

Na +H2O

c)

Na3PO4 + H2

d)

Na3PO4 + H2O + CO2

55.

Complete the following reaction:

HNO3 + Ca(OH)2 -->

a)

Ca(NO3)2 + H2O

b)

Ca +H2O

c)

Ca(NO3)2 + H2

d)

Ca(NO3)2 + H2O + CO2

56.
friction is a force that acts 
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
57.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
58.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the net force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
59.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
60.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.
61.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
62.
What is the net force?
a)
30 N 
b)
25 N 
c)
5 N 
d)
55 N 
63.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
64.
Forces have both _________ and direction.
a)
Magnitude
b)
Gravity
c)
Speed
d)
Height
65.

Calculate the net force for the diagram.

a)

800 N down unbalanced

b)

600N down balanced

c)

400 N down unbalanced

d)

400 N up unbalanced

66.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
67.
What makes a rolling ball stop moving?
a)
gravity
b)
friction
c)
a balanced force
68.

A box has three forces applied to it in the horizontal direction: a 50 N force to the right, a 30 N force to the left & a 20 N force to the right. What is the net force on the box?

a)

40 N to the left

b)

40 N to the right

c)

100 N to the right

d)

100 N to the left

69.
A car traveling 300 miles in 5 hours is an example of _____. 
a)
Speed
b)
Velocity
c)
Acceleration
d)
Direction
70.
1. Which of the following statements about speed and velocity is correct?
a)
Velocity only describes an object’s rate of motion.
b)
Speed describes how an object is changing its velocity.
c)
Speed and velocity both describe how an object is speeding up.
d)
Only velocity includes the direction an object is traveling.
71.

The geese fly 23 mph to the south when they migrate for the winter. 

a)
speed
b)
velocity
c)
acceleration
72.
Avery likes to walk 30 feet in 10 seconds. What is her speed?
a)
3 feet/sec
b)
6 feet/sec
c)
10 feet/sec
d)
2 feet/sec
73.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
74.
Find the velocity of a plane that traveled 3000 miles west in 5 hours.
a)
65 mph west
b)
6 mph west
c)
600 mph west
d)
6000 mph west 
75.

A horse accelerates from a velocity of 0m/s to 20 m/s in 3 seconds. What is the acceleration of the horse?

a)

60 m/s2

b)

6.67 m/s2

c)

0.15 m/s2

d)

30 m/s2

76.

A train decelerates from a velocity of 90 m/s to 80m/s in over 10 seconds. What is the train's acceleration?

a)

-1 m/s2

b)

1 m/s2

c)

10 m/s2

d)

-10 m/s2

77.
What is the velocity of an object that travels 20 meters in 4 seconds North?
a)
80 m/s North
b)
5 m/s
c)
5 m/s North
d)
24 m/s
78.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

79.
What are the two types of Mechanical Energy? (ME)
a)
Kinetic and Potential Energy
b)
Kinetic and Nuclear Energy
c)
Potential and Chemical Energy
d)
Thermal and Kinetic Energy
80.

Q. What does the Law of Conservation of Energy state?

a)

Energy can be created but not destroyed.

b)

Energy can be created and destroyed.

c)

Energy cannot be created but can be destroyed

d)

Energy cannot be created or destroyed.

81.

You calculated PE at 1960 J and your KE at 225 J. What is your Total Mechanical Energy? Select the Equation you should use.

a)

PE = mgh

b)

KE = 1/2 (m) (v^2)

c)

W=fd

d)

TME = KE + PE

82.

You calculated PE at 1960 J and your KE at 225 J. What is your Total Mechanical Energy?

a)

225 J

b)

3150 J

c)

2185 J

d)

1960 J

83.

Which of the is the equation for calculating work?

a)

W = Fd

b)

W = ma

c)

W = mv

d)

W = mc2

84.

Work is defined as applying a force on an object that displaces the object in the direction of the applied force. Which of the following IS NOT an an example of work being done on an object?

a)

A waiter walking with a tray of food that he is holding with his hand under the tray.

b)

A horse pulling a plow through a field.

c)

A shopper pushing a cart down the aisle of a grocery sture.

d)

A weightlifter lifting a barbell above his head.

85.

Which of the following is an instance where a force is in the opposite direction of the displacement.

a)

A car skidding to a stop on a roadway surface.

b)

A student rolling a bowling ball down a bowling lane alley.

c)

A pitcher throwing a baseball.

d)

a man pushing a crate across a loading dock.

86.

An instance where a force is appiled in the opposite direction of a displacement is called __________________ work.

a)

negative

b)

false

c)

faux

d)

opposite

87.

How much work is being done with 200 N of force to the right on object that moves 426 meters to the right? (assume the force and displacement are in the same direction)

a)

85,200 J

b)

45,620 J

c)

90,480 J

d)

62,329 J

88.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
89.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
90.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
91.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
92.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
93.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
94.
if you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N 
d)
30 N
95.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J