Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Physical Science Unit 2 Review

Total questions: 94

Worksheet time: 2hrs 41mins

Name
Class
Date
1.

substance that cannot be broken down into a simpler substance

a)

chemical

b)

element

c)

compound

d)

mixture

2.

basic particle from which all elements are made

a)

atom

b)

molecule

c)

element

d)

compound

3.

A _________ is made of two or more substances that are together in the same place but their atoms are NOT chemically bonded.

a)

compound

b)

mixture

c)

substance

d)

filtration

4.

What type of matter is shown here?

a)

Element

b)

Compound

c)

Mixture

d)

Chemical

5.
Is wood burning a physical or chemical change?
a)
Physical 
b)
Chemical
6.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
7.
Is copper tarnishing a physical or chemical change?
a)
Physical 
b)
Chemical
8.
Is the formation of the grand canyon a physical or chemical change?
a)
Physical 
b)
Chemical
9.

How is helium different from the other noble gases?

a)

Helium is extremely reactive; the rest of the noble gases are non-reactive.

b)

Helium is a solid at room temperature; the rest of hte noble gases are gases at room temperature.

c)

Helium is a metal; the rest of the noble gases are non-metals.

d)

Helium has 2 valence electrons; the rest of the noble gases have 8 valence electrons.

10.

Which of the following correctly shows the electron dot diagram for sulfur (Z = 16)?

a)
b)
c)
d)
11.
A positive ion is called a...
a)
Posion
b)
Anion
c)
Cation
d)
Proton
12.
What are ionic bonds?
a)
Valence electrons transferred between atoms
b)
Inner most electrons transferred between atoms
c)
Sharing electrons
13.
An electron has what kind of charge?
a)
no charge
b)
positive 
c)
negative
d)
it depends
14.
a proton has what charge?
a)
positive
b)
negative
c)
no charge
d)
it depends
15.
Atoms that gain electrons become...
a)
negatively charged
b)
positively charged
c)
remain neutrally charged
d)
21
16.
if METALS are more likely to LOSE electrons, they will form ...
a)
anions
b)
neutral atoms
c)
positive ions
d)
negative ions
17.
If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?
a)
Al3+
b)
Al13+
c)
Al10+
d)
Al10-
18.
Which is most likely to form a negative ion?
a)
an element from group 17
b)
a metal
c)
an element from group 1
d)
an element with atoms that have eight valence electrons
19.
How many valence electrons does Lithium have?
a)
1
b)
2
c)
3
d)
4
20.
How many valence electrons does magnesium have?
a)
1
b)
2
c)
12
d)
24
21.
How many valence electrons does Neon have?
a)
18
b)
8
c)
10
d)
2
22.
Which group is very nonreactive?
a)
Noble Gases
b)
Halogens
c)
Alkali Metals
d)
Transition Metals
23.
How many valence electrons do all elements in the Carbon family have?
a)
6
b)
5
c)
4
d)
7
24.
Ionic bonds occur between...
a)
A metal and a nonmetal
b)
Two metals
c)
Two nonmetals
d)
Two gases
25.

Calcium is most likely to become a ​ (a)   ion by ​ (b)   ​ electron/s.

Choose from the below words
positive
losing 2
gaining 2
3
gaining 1
negative
losing 1
26.

A rule stating that atoms lose, gain, or share electrons in order to have 8 valence electrons.

a)

Reactant

b)

molecule

c)

Oxidation number

d)

Octet rule

27.

Numerical charge of an ion that indicates the number of electrons lost, gained, or shared. For example, a +1 means an atom lost 1 electron whereas a 3 means an atom gained 3 electrons.

a)

Oxidation number

b)

Product

c)

Pizza

d)

Ion

28.

written below the line to indicate the number of atoms.

a)

Anion

b)

Chemical bond

c)

IUPAC

d)

Subscript

29.

Covalent is a bond formed by the sharing of electrons. Occurs between two nonmetals.

a)

True

b)

False

30.

A polar bond is a type of covalent bond in which the electrons are not being shared equally. This results in one end of the molecule having a slightly negative charge and the other a slightly positive charge.

a)

True

b)

False

31.

Type of covalent bond in which the electrons are being shared equally.

a)

Nonpolar bond

b)

Reactant

c)

Coefficient

32.

The 1st shell (energy level) can hold up to ___ electrons, while the 2nd and 3rd shells can hold up to 8 electrons.

a)

2

b)

4

c)

6

d)

8

33.

Other than H and He, how many electrons do atoms want to have in their outer shell to be FULL and HAPPY?

a)

4

b)

6

c)

8

d)

10

34.

Metallic bonds occur between...

a)

two nonmetals

b)

a metal and a nonmetal

c)

two metals

35.

Nonmetals are located to the _____ of the stair-step line, on the periodic table.

a)

right (except for H)

b)

left (except for He)

36.

With covalent bonds, electrons are _____ between the atoms.

a)

lost and gained

b)

shared

37.

With ionic bonding, electrons are _____ between the atoms.

a)

lost and gained

b)

shared

38.

A property that is observed without making changes to the substance.

a)

Chemical Reaction

b)

Chemical Property

c)

Physical Property

d)

Physical Reaction

39.

Which of the following is an example of a chemical change?

a)

Cutting paper

b)

Sugar burning

c)

Freezing water

40.

Calculate the density if the mass is 2g and the volume is 2mL.

a)

2 g/mL

b)

1 mL/g

c)

2 mL/g

d)

1 g/mL

41.

Water has a density of 1g/mL. If a rock has a density of 1.2g/mL, what will happen when it is placed in water?

a)

The rock will sink.

b)

The rock will float.

c)

The rock will react with the water.

d)

The rock will change the water.

42.

The mass of an empty graduated cylinder is 75g. After adding 25mL of vinegar to the graduated cylinder, the mass of the graduated cylinder with the vinegar increased to 85g. What is the mass of vinegar?

a)

85g

b)

75g

c)

10g

d)

160g

43.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

Ice Ice baby

44.

How is a chemical change different from a physical change?

a)

there is no difference

b)

a physical change creates a new substance

c)

a chemical change creates a new substance

45.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
46.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
47.
Salt dissolves in water
a)
physical Change
b)
chemical change
48.
NaBr + Ca(OH)2 →CaBr2 + NaOH What type of reaction?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
49.
NaBr + Ca(OH)2 →CaBr2 + NaOH Coefficient for Sodium Bromide
a)
1
b)
2
c)
3
d)
4
50.
Na + Cl2 → NaCl What Type of Reaction
a)
Synthesis
b)
Decomposition
c)
Double Replacement
d)
Combustion
51.
Na + Cl2 → NaCl Coefficient for Sodium
a)
1
b)
2
c)
4
d)
5
52.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
53.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
54.
Ions in two compounds switch. 
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
55.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
56.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
57.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
58.
2Pb(NO3)2   -->   2PbO +  4NO2  +  O2
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Combustion
59.

The compound with a pink square is known as a ___.

a)

Reactant

b)

Product

60.

In order for this equation to be balanced, what number must be written as a coefficient for the substance in the blue box?

a)

1

b)

2

c)

4

d)

0

61.

Energy is ______ when bonds break.

a)

gained

b)

lost

c)

released

d)

absorbed

62.

Energy is _____ when new bonds form.

a)

absorbed

b)

released

c)

lost

d)

gained

63.

The energy required to start a chemical reaction is ___.

a)

endothermic

b)

exothermic

c)

activation

d)

released

64.

An _______ reaction is when more thermal energy is absorbed than is released.

a)

endothermic

b)

endergonic

c)

exothermic

d)

exergonic

65.

An _______ reaction is when more thermal energy is released than is absorbed.

a)

endothermic

b)

endergonic

c)

exothermic

d)

exergonic

66.

In a _____ reaction, the reactants have more energy than the products.

a)

endergonic

b)

exergonic

67.

An _______ reaction is when more energy is absorbed than is released. This energy can be in the form of light, heat, electricity, etc.

a)

endothermic

b)

endergonic

c)

exothermic

d)

exergonic

68.

In a _____ reaction, the products have more energy than the reactants.

a)

exergonic

b)

endergonic

69.

An _______ reaction is when more energy is released than is absorbed. This energy can be in the form of light, heat, electricity, etc.

a)

endothermic

b)

endergonic

c)

exothermic

d)

exergonic

70.
The rate of a chemical reaction is NOT affected by which of the following:
a)
temperature
b)
concentration
c)
particle size (surface area)
d)
All of these affect reaction rates
71.
Products will form faster if____________
a)
the particle size of the reactants are larger.
b)
temperature is decreased.
c)
concentration of the reactants are increased.
d)
the reaction is not stirred.
72.
A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 
a)
catalyst
b)
product
c)
reactant
d)
solute
73.

Catalysts permit reactions to proceed along a ___________energy path.

a)

lower

b)

higher

c)

magnetic

d)

psycho's

74.

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

a)

larger

b)

smaller

c)

rectangular

d)

spherical

75.

Increasing the ____ causes the particles (atoms

or molecules) of the reactants to move more quickly so that

they collide with each other more frequently and with more

energy.

a)

Catalyst

b)

Surface Area

c)

Temperature

d)

Concentration

76.

Pick the TWO (2) options that will INCREASE the rate of a reaction.

a)

Reducing Heat

b)

Adding Catalyst

c)

Adding Heat

d)

Removing Catalyst

77.

Which of the following will lower the rate

of reaction?

a)

adding an enzyme to the reaction

b)

decreasing the temperature from 40°C to

10°C

c)

breaking a chunk of calcium up into

smaller pieces

d)

increasing the amount of solute

dissolved in a solution

78.

Over what range does the strong force apply?

a)

Within the nucleus

b)

Within the electron

c)

Within an ion

d)

Within a thin slice of metal

79.

Hold protons and neutrons to keep nucleus together

a)

Weak Nuclear

b)

Strong Nuclear

c)

Gravity

d)

Magnetism

80.

Attractive forces between particles in the nucleus

a)

Weak Nuclear

b)

Strong Nuclear

c)

Gravity

d)

Magnetism

81.

Attractive and repulsive forces between objects

a)

Weak Nuclear

b)

Strong Nuclear

c)

Gravity

d)

Magnetism

82.
Alpha particles.....
a)
a) are positively charged.
b)
b) consist of two protons and four neutrons.
c)
c) can penetrate any thickness of matter
d)
d) All of the above 
83.

When a nucleus undergoes gamma decay, the atomic number of the element....

a)

remains the same

b)

decreases by one.

c)

increases by one.

d)

increases by two.

84.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
85.
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
a)
alpha particle
b)
beta particle
c)
gamma ray
d)
positron
86.
Negatively charged particles emitted from a nucleus at a high speed are ____.  
a)
alpha particle
b)
gamma rays
c)
beta particles
d)
X rays
87.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
ions
d)
reaction partners
88.

What do these isotopes of carbon all have in common?


126C, 136C, 146C

a)

they all have the same number of neutrons & mass number

b)

they all have the same atomic number and neutrons

c)

they all have the same atomic number and electrons

d)

they all have the same number of protons, atomic number, and mass number

89.

Which type of nuclear radiation is being emitted here?

a)

Alpha

b)

beta

c)

gamma

d)

none

90.
If a reaction starts with a total 75g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 75g of products
c)
a total of 180 g of products
d)
None of the above
91.
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
a)
62 
b)
38
c)
24
d)
14
92.

32 g of Oxygen completely reacts with 8 g of Hydrogen to produce _____ g Water

a)

8

b)

12

c)

24

d)

40

93.
How many elements does PbNO3 have?
a)
2
b)
3
c)
4
d)
5
94.

According to the law of conservation of energy, the total amount of energy in the universe ____.

a)

remains constant

b)

changes constantly

c)

increases

d)

decreases

Similar Resources on Wayground

sains darjah 1

99 questions

sains darjah 1

quiz

Worksheet

•

1st - 10th Grade

States of Matter and Properties

97 questions

States of Matter and Properties

quiz

Worksheet

•

6th - 8th Grade

Osmosis and Diffusion

96 questions

Osmosis and Diffusion

quiz

Worksheet

•

8th - 10th Grade

8th Space Unit JARREAU

89 questions

8th Space Unit JARREAU

quiz

Worksheet

•

8th Grade

1st Semester exam 25 review part 1

92 questions

1st Semester exam 25 review part 1

quiz

Worksheet

•

8th Grade

Earth Science EOC Review

96 questions

Earth Science EOC Review

quiz

Worksheet

•

6th - 8th Grade

8th Grade STAAR Vocab Science (3)

94 questions

8th Grade STAAR Vocab Science (3)

quiz

Worksheet

•

6th - 8th Grade

Ecology Test 1 Review

95 questions

Ecology Test 1 Review

quiz

Worksheet

•

6th - 8th Grade