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Physical Science - 2nd Semester Final Review

Total questions: 151

Worksheet time: 13hrs 35mins

Name
Class
Date
1.

An element has 15 protons. What is that element?

(a)  

2.

Which subatomic particle has NO charge?

(a)  

3.

Describe the location of protons within an atom.

(a)  

4.

In an ionic bond, electrons are ________. In a covalent bond, electrons are _______.

(a)  

5.

How many neutrons are in the following isotope: carbon-13?

(a)  

6.

This law states that mass cannot be created or destroyed (during a chemical reaction), only transformed.

(a)  

7.

What is the correct formula when lithium and oxygen combine?

(a)  

8.

What coefficients will balance the following equation?

a)

1, 1, 2, 1, 1

b)

1, 2, 2, 2, 1

c)

1, 2, 2, 1, 1

d)

1, 2, 1, 2, 2

9.

What is the density, in g/mL, of the red marble if it has a mass of 50g?

(a)  

10.

What is the name of the following compound?

(a)  

11.

Which of these are a negative consequence of using nuclear fission as an energy source?

a)

nuclear waste produced by nuclear power plants can be harmful

b)

the energy is difficult to store

c)

the power plants can be a threat to nearby towns

d)

the coolants in nuclear plant can malfunction

e)

the air pollution created by nuclear power plants is harmful to plants, animals, and humans

12.

True or False: Fusion occurs when the nucleus of an atom splits, and fission occurs when two nuclei of atoms fuse together.

a)

true

b)

false

13.

Which is the correct sequence of radioactive particles, in order of least penetrating to most penetrating?

a)

gamma, beta, alpha

b)

beta, alpha, gamma

c)

alpha, gamma, beta

d)

alpha, beta, gamma

e)

gamma, alpha, beta

14.

The half-life of iodine-131 is 8 days. If 200g of iodine-131 is received by the local hospital, how much would remain after 32 days?

(a)  

15.

What is the half-life of this radioactive isotope?

(a)  

16.

Oxygen is in group 16 on the periodic table. How many valence electrons does oxygen have?

(a)  

17.

Which of the following would be a liquid at room temperature: oxygen, mercury or sodium?

(a)  

18.

Which of the following lists the following phases of matter in the correct order from least kinetic energy to most kinetic energy: liquid, gas, solid.

a)

liquid, gas, solid

b)

solid, liquid, gas

c)

gas, solid, liquid

d)

gas, liquid, solid

19.

What will most likely happen to the volume of this container if the temperature is decreased? (*Assume pressure remains constant.)

(a)  

20.

What happens to temperature during melting?

(a)  

21.

Describe the pH level of acids.

(a)  

22.

Describe the pH level of bases.

(a)  

23.

Describe the pH level of neutral substances.

(a)  

24.

An unknown material has a pH of 13. What color would it turn a piece of litmus paper?

(a)  

25.

Which of the following can increase the dissolving rate of a solute?

a)

cool the solvent

b)

heat the solvent

c)

stir the solvent

d)

decrease the particle size of the solute

e)

reduce the quantity of solvent

26.

Kool-Aid is made up of 85% water, 10% sugar, and 5% drink mix. In this solution, which is the solvent?

(a)  

27.

At what temperature will 100 grams of KBr dissolve?

(a)  

28.

All matter (daily) is made of ____.

a)

dust

b)

energy

c)

atoms

d)

electricity

29.

All atoms have ____ part(s).

a)

2

b)

1

c)

3

d)

4

30.

The center of all atoms has _____.

a)

a nucleus

b)

empty space

c)

electrons

d)

black hole

31.

____ surround all atoms.

a)

protons

b)

electrons

c)

neutrons

d)

croutons

32.

In atoms, protons have (a) ____ charge; neutrons have (a) ____ charge; and neutrons have (a) ____ charge.

a)

+ , 0 , -

b)

- , + , 0

c)

0 , - , +

d)

croutons

33.

The 78 is the ____. It tells us the ____ in an atom of this element.

a)

atomic number , #protons and #electrons

b)

mass number , #protons and #electrons

c)

atomic number , #neutrons and #electrons

d)

mass number , #protons and #neutrons

34.

The 195.085 is the ____. When rounded to 195, it tells us the ____ in an atom of this element.

a)

atomic number , #protons and #electrons

b)

mass number , #protons and #electrons

c)

atomic number , #neutrons and #electrons

d)

mass number , #protons and #neutrons

35.

To find the average number of neutrons in an atom of this element we ____.

a)

add the atomic number and the mass number

b)

subtract the atomic number from the mass number

c)

multiply the atomic number by the mass number

d)

divide the mass number by the atomic number

36.

The average number of neutrons in an atom of this element is ___. HINT: #n = A - Z

a)

79

b)

195

c)

116

d)

275

37.

Substances that are made of different types of atoms that are bonded together are ____.

a)

ions

b)

mixtures

c)

compounds

d)

solutions

38.

When two or more atoms bond together th form structures called ____.

a)

ions

b)

mixtures

c)

molecules

d)

atomonities

39.

The gumballs in the gumball machine are a(n) ____ .

a)

incomplete mixture

b)

homogeneous mixture

c)

heterogeneous mixture

d)

complete mixture

40.

The candies in the gumball machines are ____ .

a)

incomplete mixtures

b)

homogeneous mixtures

c)

heterogeneous mixtures

d)

complete mixtures

41.

Substances that have an indefinite volume and an indefinite shape are ____.

a)

gases

b)

liquids

c)

solids

42.

Substances that have a definite volume and an indefinite shape are ____.

a)

gases

b)

liquids

c)

solids

43.

Substances that have a definite volume and a definite shape are ____.

a)

gases

b)

liquids

c)

solids

44.

A fourth state of matter is created when a gas is heated to a very high temperature until its atoms separate into protons and electrons. This state of matter is called ____.

a)

plasma

b)

gasloop

c)

everyspark

d)

chargenogen

45.

How can the volume of this ball be increased without using an air pump?

a)

decrease its temperature

b)

increase its temperature

c)

put it in a dark place

d)

shine light on it

46.

How could you increase the pressure inside of this balloon?

a)

Let it float in air.

b)

Squeeze it.

c)

Rub it on a sweater.

d)

Allow it to sit for one week.

47.

Acids have a pH ____.

a)

of 7

b)

of 0 to below 7

c)

above 7 to 14

48.

Bases have a pH ____.

a)

of 7

b)

of 0 to below 7

c)

above 7 to 14

49.

Pure water has a pH ____.

a)

of 7

b)

of 0 to below 7

c)

above 7 to 14

50.

This substance is _____.

a)

acidic

b)

basic (alkaline)

51.

This substance is _____.

a)

acidic

b)

basic (alkaline)

52.

Acids turns litmus indicators ____ and bases turn litmus indicators ____.

a)

red , blue

b)

blue , red

c)

green , red

d)

blue , green

53.
An example of a chemical property is ____. 
a)
Flammability 
b)
Change of State
c)
Burning
d)
Density 
54.
The particles in both a solution and a colloid can scatter light. 
a)
True
b)
False
55.
A milk shake is a(n)
a)
mixture
b)
compound
c)
element
56.
Hydrogen peroxide is a(n)
a)
mixture
b)
compound
c)
element 
57.
Physical properties are
a)
properties that can be observed without changing the identity of the substance
b)
properties that describe how a substance changes into a completely different substance
c)
properties that we can only observe with our eyes
d)
properties that we need special tools to observe
58.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
59.
What term describes a solid changing to a liquid?
a)
Deposition
b)
Sublimation
c)
Freezing 
d)
Melting
60.
How is a solid defined?
a)
Indefinite shape and indefinite volume
b)
Definite shape and definite volume
c)
Found in the stars
d)
Definite volume, indefinite shape
61.
What term describes a liquid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Freezing
d)
Evaporation
62.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
63.
What charge do electrons have?
a)
positive
b)
negative
c)
neutral
64.
The atomic number of an elements is the total number of which particles in the nucleus?
a)
neutrons
b)
protons
c)
electrons
d)
protons and electrons
65.
An atom has 5 protons, 7 neutrons and 5 electrons. What is the mass number of the atom?
a)
5
b)
7
c)
2
d)
12
66.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
67.
Subatomic particle that determines the identity of the atom
a)
proton
b)
nucleus
c)
electron
d)
neutron
68.
An atom has 10 protons and a mass of 18. It has __ neutrons
a)
10
b)
18
c)
28
d)
8
69.
Which scientist is credited with discovering the negatively charge subatomic particles in the atom?
a)
Neils Bohr
b)
J.J. Thompson
c)
Ernest Rutherford
d)
Dalton
70.
Ernst Rutherford discovered which part of the atom throught the use of gold foil?
a)
Proton
b)
Neutron
c)
Electron
d)
Orbitals
71.
Bohr's Planetary Model represented what?
a)
Electrons spin around the nucleus in a fixed orbital
b)
Protons spin around the nucleus in fixed orbitals 
c)
An atom is a round sphere shaped like a planet
d)
Every atom is a little planet
72.
What did James Chadwick discover?
a)
Neutron
b)
Proton
c)
Electron
d)
Who cares I want to go home!
73.
Which determines the mass of an element?
a)
Protons
b)
Neutrons
c)
Electrons
d)
Only Protons and Neutrons
74.
The __________ contains the protons and neutrons of an atom, and is most of the mass of an atom
a)
Nucleus
b)
Atomic Number
c)
Atomic Mass
d)
Electrons
75.
The __________________ is the sum of the protons and the neutrons in an atom.
a)
Atomic Number
b)
Mass Number
c)
Protons
d)
Neutrons
76.
J.J. Thomson provided evidence that an atom...
a)
is the smallest particle of matter
b)
contains negatively charged particles
c)
has an overall negative charge
d)
has an overall positive charge
77.
What type of elements are generally found in covalent drawings?
a)
non-metals
b)
metals
c)
metals and non-metals
78.
Ernest Rutherford discovered that atoms were mostly _________________. 
a)
negatively charged
b)
positively charged
c)
electrons
d)
empty space. 
79.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
80.
MgCl2
a)
Magnesium chlorite
b)
Magnesium chloride
c)
Magnesium chlorate
d)
Magnesium (II) chloride
81.
An ion that has a positive charge.
a)
cation
b)
anion
c)
oxyanion
d)
monoatomic ion
82.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 nonmetals
c)
metal
d)
none of the above
83.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
84.
A covalent bond forms when 
a)
Valence electrons are shared
b)
a sea of mobile electrons surround the cations
c)
valence electrons are shared between atoms
d)
none of the above
85.
An ionic bond forms when 
a)
Valence electrons are shared
b)
a sea of mobile electrons surround the cations
c)
valence electrons are transferred between atoms
d)
none of the above
86.
What type of chemical reaction is this one?
Al(OH)3 --> Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
87.
What type of chemical reaction is this one?
Ca + MgCl2 --> CaCl2 + Mg
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
88.
OH1-
a)
Hydroxide
b)
Hydronium
c)
Cyanide
d)
Acetate
89.
What is the molar mass of sodium?
a)
11
b)
22.990
c)
45.98
d)
3
90.
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
91.
What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?
a)
62.435g
b)
116.399g
c)
133.341g
d)
97.888g
92.
How many moles are in 16.94g of water?
a)
16.94
b)
0.9403
c)
305.2
d)
1.063
93.
What do we call the rows of the Periodic Table
a)
Horizontals
b)
Elemental rows
c)
Periods
d)
Halogens
94.
The columns are called families.  What characteristics do chemical families share?
a)
Same state of matter
b)
Same number of valence electrons
c)
Same number of neutrons
d)
Same physical properties
95.
Which subatomic particle identifies an atom of an element?
a)
proton
b)
neutron
c)
electron
d)
nucleus
96.
What determines the number of protons in an atom?
a)
Atomic number
b)
Atomic mass
c)
Atomic weight
d)
Oxidation number
97.
What is the atomic number of calcium (Ca)?
a)
2
b)
14
c)
18
d)
20
98.
How many protons does the elemental atom of nitrogen contain?
a)
4
b)
7
c)
14.0
d)
21
99.
How many valence electrons are in the Halogen family elements?
a)
10
b)
9
c)
8
d)
7
100.
Anion is another term for an atom that gains one or more electrons.
a)
TRUE 
b)
FALSE
101.
If an atom of nitrogen gains 3 electrons, what is its overall charge?
a)
Neutral - No charge
b)
+3
c)
-3
d)
-1
102.
In the following unbalanced equation, what coefficients would have to go in the blanks (left to right) in order for it to become balanced?
__ Al  +  __ HCl  -->  __AlCl3  +  __H2
a)
1:3:1:2
b)
3:2:1:2
c)
6:2:2:3
d)
2:6:2:3
103.
In general, metals react by ___.
a)
sharing valence electrons
b)
gaining valence electrons
c)
losing valence electrons
d)
sometimes gaining and sometimes losing valence electrons
104.
The pH of milk is 6.4. Based on this information, which of the following statements best describes milk?
a)
Very Basic
b)
Slightly Basic
c)
Very Acidic
d)
Slightly Acidic
105.
Which group or family of the periodic table will not   naturally form compounds with any atom? 
a)
Halogens
b)
Nobel Gases
c)
Alkali Metals
d)
Alkaline Earth Metals
106.
An atom has 29 protons, 29 electrons, and 35 neutrons.  What is the mass number of the atom?
a)
29
b)
35
c)
64
d)
93
107.
What is the Law of Conservation of Mass?
a)
It states that no matter can be created or destroyed.
b)
It states that no energy can be created or destroyed.
c)
It states that matter can be created or destroyed.
d)
It states that no sound can be created or destroyed.
108.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number in front of a chemical formula.
c)
The number in between the chemical symbols.
d)
The number behind a chemical formula.
109.
What is the part of the chemical equation in green called? 
Fe + S --> FeS
a)
products
b)
reactants
c)
yield
d)
chemical formula
110.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
111.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
112.
Which problem is balanced?
(Check ALL answers)
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
113.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
114.
Element or compound?
H2O
a)
element
b)
compound
115.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
116.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
117.
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
118.
What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
119.
What is the total number of atoms present in 5Na3PO4
a)
5
b)
40
c)
55
d)
8
120.
How many Mn atoms are found in the following compound?
3Cr(MnO4)6
a)
3
b)
4
c)
6
d)
18
121.
Element or compound?
H2O
a)
Element
b)
Compound
122.
Element or compound?
O2
a)
Element
b)
Compound
123.
How many Oxygens are in this molecule? 
(OH)2
a)
4
b)
1
c)
2
d)
3
124.
What are the smaller numbers that you CANNOT change in a chemical equation? 
a)
Coefficient
b)
Products
c)
Reactants
d)
Subscript
125.
What are the larger numbers that you CAN CHANGE in a chemical equation? 
a)
Coefficient 
b)
Products
c)
Reactants
d)
Subscripts
126.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
127.
Pb(NO3)2  +  KI --> PbI2 + KNO3
What type of reaction is this? 
a)
Synthesis 
b)
Decomposition 
c)
Single Replacement
d)
Double Replacement 
128.
What type of reaction is this?  
__H2O2 ---->  __H2O + O2
a)
Synthesis
b)
Decomposition 
c)
Single Replacement
d)
Combustion 
129.
Identify the numbers that would correctly balance the equations
a)
1, 1, 1
b)
1, 1, 2
c)
1, 2, 1
d)
2, 1, 2
130.
Identify the numbers that would correctly balance the equations
a)
1, 1, 1, 1
b)
1, 1, 1, 2
c)
1, 2, 1, 1
d)
1, 2, 1, 2
131.

Chemical Reaction

a)

a substance formed as a result of a chemical reaction

b)

a change in matter that produces one or more new substances

c)

the process in which substances undergo chemical changes that result in the formation of new substances

d)

a substance that enters into a chemical reaction

132.

Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe

a)

yes

b)

no

133.

Balance this equation

_Al +_HCl --> _H2 +_AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

134.

The coefficient in 3H2O is

a)

6

b)

5

c)

2

d)

3

135.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
136.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
137.
AB + CD →AD + CB
a)
Double Replacement
b)
Single Replacement
c)
Synthesis
d)
Decomposition
138.
Identify this type of reaction,
Cl2 + 2KI -->  I2 + 2KCl
a)
Synthesis
b)
Single displacement
c)
Double displacement
d)
Decomposition
139.
2 C5H5 + Fe --> Fe(C5H5)2 
a)
single displacement
b)
double displacement
c)
decomposition
d)
synthesis
140.
2 C5H5 + Fe --> Fe(C5H5)2 
a)
single displacement
b)
double displacement
c)
decomposition
d)
synthesis
141.
2 RbNO3 + BeF2 --> Be(NO3)2 + 2 RbF
a)
single displacement
b)
double displacment
c)
decomposition
d)
synthesis
142.
Which chemical reaction breaks down into 2 substances?
a)
Double displacement
b)
Single displacement
c)
Synthesis
d)
Decomposition
143.
Which of the following is an example of synthesis?
a)
Na + Br2 --> NaBr
b)
KClO3 --> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
144.
Which of the following is the general formula for a decomposition reaction?
a)
A + B  → AB
b)
AB → A + B
c)
AB + C → AC + B
d)
AB + CD → AC + BD
145.
2 AgNO3 + Cu --> Cu(NO3)2 + 2 Ag 
a)
single displacement
b)
double displacement
c)
decomposition
d)
synthesis
146.
A + BC →B + AC
a)
Single Replacement
b)
Decomposition
c)
Double Replacement
d)
Synthesis
147.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)
Single Replacement Replacement
d)
Double Replacement Replacement
148.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
149.
How many NO molecules are needed to make the following equation balanced?
N2 + O2 → ____NO 
a)
1
b)
2
c)
3
d)
4
150.
What is the total number of atoms present in  5Na3PO4?
a)
5
b)
40
c)
55
d)
60
151.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 → Fe2O3
a)
4Fe + 3O2 
 → 2Fe2O3
b)
2 Fe + 3O2 
→ Fe2O6
c)
4 Fe + O6 
→ 2Fe2O3
d)
Fe + O2 
→ Fe2O3

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150 questions

Semester Exam Review

quiz

Worksheet

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9th Grade

AS&B Breed Test

150 questions

AS&B Breed Test

quiz

Worksheet

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9th - 12th Grade

F4 Section A Quiz

146 questions

F4 Section A Quiz

quiz

Worksheet

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10th - 11th Grade