wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Practice Chemistry Problems

Total questions: 100

Worksheet time: 3hrs 29mins

Name
Class
Date
1.

The center of an atom is 

a)

a neutron.

b)

a nucleus.

c)

a quark.

d)

a bohr.

2.

An area around an the center of the atom where electrons are located

a)

is deep space.

b)

is a quark.

c)

is a nucleus.

d)

is an electron cloud.

3.

What are the subatomic particles of atoms?

a)

Protons and neutrons.

b)

Protons, neutrons, and electrons.

c)

nuclei

d)

are quarks.

4.

The smallest particle of an element that still retains the element's properties is

a)

an atom.

b)

a nucleus.

c)

a quark.

d)

an electron.

5.

What is the Symbol for Carbon?

(a)  

6.

What is the symbol for Hydrogen?

(a)  

7.

What is the symbol for Nitrogen

(a)  

8.

What is the symbol for Berrylium?

(a)  

9.

What is the symbol for Boron?

(a)  

10.

What is the symbol for Helium?

(a)  

11.

What is the symbol for Lithium?

(a)  

12.

What is the symbol for Fluorine?

(a)  

13.

What is the atomic number of Ne?

(a)  

14.

How many protons does F have? (Use numbers only)

(a)  

15.

What is the atomic number of H?

(a)  

16.

What is the atomic number of He?

(a)  

17.

What is the atomic number of O?

(a)  

18.

What is the atomic number of Li?

(a)  

19.

What is the atomic number of N?

(a)  

20.

What is the atomic number of Be?

(a)  

21.

What is the atomic number of C?

(a)  

22.

What is the atomic number of B?

(a)  

23.

What is the atomic number of Phosphorus?

a)

1

b)

5

c)

10

d)

15

24.

What is the symbol for Beryllium?

a)

B

b)

Be

c)

Br

d)

Ba

25.

What is the name of the element with an atomic number "5"?

a)

Boron

b)

Carbon

c)

Beryllium

d)

Oxygen

26.

What is the atomic number of Fluorine?

a)

3

b)

6

c)

9

d)

12

27.

What is the symbol for Sodium?

a)

S

b)

Ni

c)

Sr

d)

Na

28.

What is the atomic number of Aluminum?

a)

3

b)

9

c)

13

d)

19

29.

What is the symbol for Oxygen?

a)

O

b)

X

c)

Y

d)

G

30.

What is the symbol for atomic number 10?

a)

Ne

b)

N

c)

O

d)

Na

31.

What is the name of the element with a symbol of "Si"?

a)

Sports Illustrated

b)

Silly Icon

c)

Silicon

d)

Comicon

32.

What is the atomic number of the element Carbon?

a)

3

b)

6

c)

9

d)

12

33.

Name of the element with a symbol of "Mg"?

a)

Magnesium

b)

Magnum

c)

Manganese

d)

Molybdenium

34.

Name of the element with the symbol "Li"?

a)

Luthenium

b)

Lanthanium

c)

Lithium

d)

Loserium

35.

What is the symbol for Nitrogen?

a)

N

b)

Ne

c)

Ni

d)

Nd

36.

What is the atomic number of Helium?

a)

1

b)

2

c)

3

d)

4

37.

How many Valence electrons are in Bismuth?

a)

3

b)

13

c)

5

d)

15

38.

How many Valence electrons are in Germanium? (Use numbers only)

(a)  

39.

How many VALENCE electrons are in Cesium? (Use numbers only)

(a)  

40.

How many subatomic particles are in the nucleus of Osmium? (Use numbers only)

(a)  

41.

How many subatomic particles are in the nucleus of Cadmium? (Use numbers only)

(a)  

42.

How many subatomic particles are in the nucleus of Tungsten? (Use numbers only)

(a)  

43.

How many subatomic particles are in the nucleus of Hydrogen? (Use numbers only)

(a)  

44.

How many subatomic particles are in the nucleus of Beryllium? (Use numbers only)

(a)  

45.

Protons have what kind of charge?

a)

Positive

b)

Neutral

c)

Negative

46.

What kind of charge do neutrons have?

a)

Positive

b)

Neutral

c)

Negative

47.

What kind of charge do electrons have?

a)

Positive

b)

Neutral

c)

Negative

48.

What is the atomic mass of Aluminum?

a)

13

b)

27

c)

31

d)

39

49.

What group is Nitrogen in? (Up and down)

a)

5

b)

7

c)

14

d)

15

50.

What Period is Potassium in? (Across)

a)

4

b)

18

c)

19

d)

39

51.

Hydrogen is a....

a)

Metal

b)

Metaloid

c)

Non-Metal

52.

What element has the symbol Zn?

a)

Gold

b)

Silver

c)

Zinc

d)

Arsenic

53.

How many protons are in oxygen? (Same as atomic #)

a)

1

b)

8

c)

16

d)

24

54.

What element is atomic number 2?

a)

Hydrogen

b)

Lithium

c)

Helium

d)

Neon

55.
Which of the following is an example of a compound?
a)
a.  Sodium (Na)
b)
a.  Oxygen (O2)
c)
a.  Chlorine (Cl)
d)
a.  Water (H2O)
56.

Mendeleev arranged the elements by their ________________

a)

alphabetical

b)

density

c)

melting point

d)

atomic mass

57.

The horizontal rows on the periodic table are called

a)

groups

b)

families

c)

periods

d)

atomic numbers

58.

Each vertical column on the periodic table is called a...

a)

group

b)

tower

c)

period

d)

crew

59.

What is the chemical symbol for Lead?

a)

Le

b)

Fe

c)

Ld

d)

Pb

60.

These elements located on the "stair-step" line are sometimes called "semiconductors."

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Groups

61.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
62.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
63.

The atomic mass of an element is:

a)

the amount of electrons the element has

b)

the element's size

c)

the number of protons and neutrons an element has in its nucleus

d)

the element's name

64.

The atomic number is the

a)

average mass of the element

b)

number of protons an element has

c)

number of valence electrons an element has

d)

group and period an element belongs to

65.

Elements in the same group or family have the same number of

a)

neutrons

b)

valence electrons

c)

electrons

d)

energy levels

66.

Up to which element, the Law of Octaves was found to be applicable

a)

(a) Oxygen

b)

(b) Calcium

c)

(c) Cobalt

d)

(d) Potassium

67.

According to Mendeleev's Periodic Law, the elements were

arranged in the periodic table in the order of

a)

(a) increasing atomic number

b)

(b) decreasing atomic number

c)

(c) increasing atomic masses

d)

(d) decreasing atomic masses

68.

One of the advantages of the systematic classification of elements in the Periodic Table of Elements is it

a)

allows scientists to select atoms

b)

allows predictions of chemical properties of an element

c)

allows determination of the number of neutrons in an element

d)

allows identification of scientist that discovers the element

69.

Elements have the most similar properties if they are in the same _______?

a)

Periods

b)

Groups

c)

Rows

d)

Blocks

70.

How many Protons does Copper(Cu) have?

a)

42

b)

29

c)

58

d)

25

71.

What is the Atomic number of Krypton(Kr)?

a)

35

b)

63

c)

36

d)

40

72.

Which element is in period 4 family 11

a)

Mercuy

b)

Copper

c)

Silver

d)

Gold

73.

Is Silicon a metal, nonmetal, or metalloid?

a)

Metal

b)

Nonmetal

c)

Metalliod

74.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
75.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
76.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
77.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
78.
Number of N in (NH₄)₂CrO₄
a)
1
b)
2
c)
8
d)
16
79.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
80.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
81.
A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?
a)
The level of the substance in the beaker is higher after the other liquid is added.
b)
A yellow solid forms and then settles to the bottom of the beaker.
c)
Small white crystals are left behind in the flask that held the first liquid.
82.
Which of the following is an example that includes evidence of a chemical reaction?
a)
A sample of zinc is placed in water and it settles to the bottom
b)
A solid block of ice is heated and it completely melts into a liquid. 
c)
Sugar that is burned gives off an odor and turns brown and then black.
d)
A tomato is placed into a blender and chopped up into smaller pieces.
83.

During an experiment, a student combines a solid, metallic substance with a clear liquid in a beaker. The mixtures turns hot, produces bubbles, and sparks. Based on the observations, the student can conclude that –

a)

A. a phase change has occurred.

b)

B. atoms have been rearranged to form a new substance.

c)

C. the products are likely harmful to human skin.

d)

D. the metal substance is a poor conductor of heat.

84.
Which one is NOT a sign that a chemical reaction has occurred?
a)
precipitate
b)
energy change
c)
unexpected color change
d)
dissolving
85.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
86.

Which of the models best represents CaCO3?

a)
b)
c)
d)
87.

Claire has a liquid. It has a mass of 9g and a volume of 3mL. What is its density?

a)

3 g/mL

b)

.33 g/mL

c)

27 g/mL

d)

39 g/mL

88.

What is the volume of 55 grams of lead if it has a density of 11 g/cm3?

a)

605 cm3

b)

5 cm3

c)

66 cm3

d)

.2 cm3

89.

What is the mass of a 100mL liquid if it has a density of 3 g/mL?

a)

300 g

b)

33.3 g

c)

.03 g

d)

103 mL

90.

Find the mass.

a)

285.3 g

b)

295.5 g

c)

275.3 g

d)

280.3

91.

The temperature at which a liquid changes to a gas is the...

a)

condensation

b)

boiling point

c)

freezing

d)

melting

92.

The change in state from a solid to a liquid is called melting.

a)

True

b)

False

93.

Tearing paper into small pieces is an example of a

a)

Mixture

b)

Physical change

c)

Chemical change

d)

Physical Property

94.
True or false: Physical changes include changes in the state of matter.
a)
True
b)
False
95.

How many elements are in this chemical formula?

H2SO4H_2SO_4  

a)

1

b)

2

c)

3

d)

4

96.

How many atoms of Carbon are in this formula? C6 H12O6C_{6\ }H_{12}O_6  

a)

6

b)

1

c)

12

97.

Molecules that are made of more than one type of atom are called?

a)

Molecules

b)

Elements

c)

Mixtures

d)

Compounds

98.

What is the total number of atoms in this chemical formula? C8H3NaBr12C_8H_3NaBr_{12}  

a)

18

b)

12

c)

25

d)

24

99.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
100.
When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change?
a)
The ice melting is a chemical change because the water changes form.
b)
The ice melting is a physical change because the water may be frozen again.
c)
The water and coffee mixing is a chemical change because the liquids change color.
d)
The water and coffee mixing is a physical change because the mixture forms bubbles.

Similar Resources on Wayground

Quarter 1 Review

100 questions

Quarter 1 Review

quiz

Worksheet

•

5th - 6th Grade

IIT-JEE & NEET FOUNDATION LEVEL- 16 (8-T)

100 questions

IIT-JEE & NEET FOUNDATION LEVEL- 16 (8-T)

quiz

Worksheet

•

8th Grade

IIT-JEE & NEET FOUNDATION LEVEL- 12 (6-T)

100 questions

IIT-JEE & NEET FOUNDATION LEVEL- 12 (6-T)

quiz

Worksheet

•

6th Grade

The Epic 100 Quiz: Junior Cert Chemistry - Chemical Bonding

100 questions

The Epic 100 Quiz: Junior Cert Chemistry - Chemical Bonding

quiz

Worksheet

•

7th - 9th Grade

IIT-JEE & NEET LEVEL - 10 (7-T)

100 questions

IIT-JEE & NEET LEVEL - 10 (7-T)

quiz

Worksheet

•

7th Grade

Physical Science Chemistry Review

95 questions

Physical Science Chemistry Review

quiz

Worksheet

•

KG - University

LIFT: Physical Science Semester Test

100 questions

LIFT: Physical Science Semester Test

quiz

Worksheet

•

7th - 9th Grade

Chemical Bonding Review

103 questions

Chemical Bonding Review

quiz

Worksheet

•

8th Grade