wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Chemistry Regents Midtern

Total questions: 135

Worksheet time: 23mins

Name
Class
Date
1.

Which list of symbols represents nonmetals, only?

a)

B, Al, Ga

b)

Li, Be, B

c)

C, Si, Ge

d)

P, S, Cl

2.

What is the chemical formula for lead(IV) oxide?

a)

PbO2

b)

PbO4

c)

Pb2O

d)

Pb4O

3.
Which formula represents a nonpolar molecule containing polar covalent bonds?
a)
1
b)
2
c)
3
d)
4
4.
What is the charge of the nucleus of an oxygen atom?
a)
0
b)
-2
c)
+8
d)
+16
5.
Which Lewis electron-dot diagram represents a nitrogen atom in the ground state?
a)
1
b)
2
c)
3
d)
4
6.
Every chlorine atom has
a)
7 electrons
b)
17 neutrons
c)
a mass number of 35
d)
an atomic number of 17
7.
Which property can be defined as the ability of a substance to be hammered into thin sheets?
a)
conductivity
b)
malleability
c)
melting point
d)
solubility
8.
Which list of elements consists of a metal, a metalloid, and a noble gas?
a)
aluminum, sulfur, argon
b)
magnesium, sodium, sulfur
c)
 sodium, silicon, argon
d)
silicon, phosphorus, chlorine
9.
Which electron configuration represents an excited state for an atom of calcium? 
a)
2-8-7-1
b)
2-8-7-2
c)
2-8-7-3
d)
2-8-8-2
10.
Which two notations represent isotopes of the same element?
a)
1
b)
2
c)
3
d)
4
11.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
12.
1000 m = ___________ km
a)
100
b)
10
c)
1
d)
0.1
13.
15.6 L = ___________ mL
a)
15,600
b)
156,000
c)
1,560,000
d)
15,600,000
14.
2804 mg = ___________ g
a)
0.2804
b)
2.804
c)
28.04
d)
280.4
15.
0.57 mL = ___________ L
a)
5.7
b)
0.057
c)
0.0057
d)
0.00057
16.
0.932 g = ___________ mg
a)
9.32
b)
93.2
c)
932
d)
9,320
17.
3 km = ___________ mm
a)
30
b)
300
c)
3,000
d)
3,000,000
18.
 68 cm = ___________ mm
a)
0.68
b)
6.8
c)
68
d)
680
19.
 1234 mg = ___________ kg
a)
0.0001234
b)
0.001234
c)
0.01234
d)
0.1234
20.
55 mm = ___________ cm
a)
0.55
b)
5.5
c)
550
d)
5,500
21.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

22.

Select the smallest unit.

a)

milliliter

b)

centiliter

c)

hectoliter

d)

liter

23.

Select the smallest unit.

a)

decimeter

b)

meter

c)

hectometer

d)

kilometer

24.

Which of the following options is the base unit?

a)

kilometer

b)

centimeter

c)

meter

d)

millimeter

25.

15 m = _____ mm

a)

15,000

b)

1,500

c)

0.015

d)

150

26.
1000 grams = _____ kilograms
a)
0.0001
b)
1,000,000
c)
10
d)
1
27.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
28.
5,000 mg = ____ g
a)
50
b)
5
c)
500
d)
5,000
29.

Which symbol represents an atom in the ground state with the most stable electron configuration?

a)

B

b)

O

c)

Li

d)

Ne

30.

The bonds in BaO are best described as

a)

covalent, because valence electrons are shared

b)

covalent, because electrons are transferred

c)

ionic, because valence electrons are shared

d)

ionic because electrons are transferred

31.

What is the chemical formula for ammonium sulfide?

a)

(NH4)2S

b)

(NH4)2SO3

c)

(NH4)2SO4

d)

(NH4)2S2O3

32.

What is the name of PbO2

a)

Lead Oxide

b)

Lead (II) Oxide

c)

Lead (IV) Oxide

d)

Lead Hydroxide

33.

A mixture of crystals of salt and sugar is added to water and stirred until all solids have dissolved. Which statement best describes the resulting mixture?

a)

The mixture is homogeneous and can be separated by filtration.

b)

The mixture is homogeneous and cannot be separated by filtration.

c)

The mixture is heterogeneous and can be separated by filtration.

d)

The mixture is heterogeneous and cannot be separated by filtration.

34.

Which statement describes a mixture of sand and water at room temperature?

a)

It is heterogeneous, and its components are in the same phase.

b)

It is heterogeneous, and its components are in different phases.

c)

It is homogeneous, and its components are in the same phase.

d)

It is homogeneous, and its components are in different phases.

35.

Which type of matter is composed of two or more elements that are chemically combined in a fixed proportion?

a)

solution

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

36.

Which particle has a mass so small, it is considered to be 0 amu?

a)

proton

b)

hydrogen nucleus

c)

neutron

d)

electron

37.

What quantity is the same among atoms of the same element?

a)

mass number

b)

atomic number

c)

number of neutrons

d)

number of nucleons

38.

An atom that has 8 protons and 10 neutrons is an isotope of the element

a)

nitrogen

b)

oxygen

c)

fluorine

d)

neon

39.

Which temperature is equal to 170 C?

a)

103 K

b)

443 K

c)

-103 K

d)

498 K

40.

What is the overall charge of an ion that has 9 protons, 11 neutrons, and 10 electrons?

a)

+1

b)

-1

c)

+2

d)

-2

41.

How would you classify NaCl?

a)

element

b)

compound

c)

heterogeneous mixture

d)

homogeneous mixture

42.

Which pair of atoms will form ionic bonds?

a)

S and F

b)

Mg and O

c)

F and Cl

d)

H and Ne

43.

An atom of which element has 37 protons, 48 neutrons and 1 valence electron?

a)

Neon (Ne)

b)

Carbon (C)

c)

Rubidium (Rb)

d)

Sodium (Na)

44.

What part of the atom determines the identity of an atom?

a)

Electrons

b)

Neutrons

c)

Protons

d)

Nucleus

45.

What part of the atom determines the chemical properties or reactivity?

a)

Protons

b)

Electrons

c)

Valence Electrons

d)

Energy levels

46.
Which of the following atomic symbols is written correctly?
a)
ee
b)
hE
c)
C
d)
CL
47.
Which of the following chemical formulas represents a compound? 
a)
C3
b)
O2
c)
CH3CHO
d)
H2
48.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
49.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
50.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
51.
What is the name of a single type of atom?
a)
cell
b)
proton
c)
element
d)
atom
52.
A copper penny turning greenish after a few years is an example of ...
a)
Chemical Change
b)
Physical Change
53.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
54.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
55.
Which grouping lists the states of matter in order of increasing distance between particles?
a)
gas, liquid, solid
b)
liquid, solid, gas
c)
solid, gas, liquid
d)
solid, liquid, gas
56.

Mercury

a)

Me

b)

Hg

c)

Pb

d)

Sn

57.

Based on the data, which number shows the correct location of the element with 2 valence electrons and 3 energy levels.

a)

1

b)

2

c)

3

d)

4

58.

Bohr discovered that electrons are located in

a)

the nucleus

b)

inside protons

c)

electron cloud

d)

circular orbits around the nucleus

59.

Which two elements on the periodic table are in the same group?

a)

Na and He

b)

O and C

c)

Li and Ne

d)

He and Ar

60.

Which pair of properties describe the elements in group 18

a)

They have 8 valence electrons and are very reactive

b)

They have 8 energy levels and are stable

c)

They are gases at room temperature and are stable

d)

They are gases at room temperature and very reactive.

61.

Which chemistry concept is false?

a)

When 2 gases have the same pressure and temperature, they also have the same volume.

b)

When the pressure of a gas increases, the volume of the gas increases (assuming constant temp).

c)

When the pressure of a gas increases, the temperature of the gas increases (assuming constant volume).

d)

When the temperature of a gas increases, the volume of the gas increases (assuming constant pressure).

62.

Which chemistry concept is false?

a)

Homogeneous mixtures contain 2 different types of particles that are unevenly distributed.

b)

Heterogeneous mixtures contain 2 different types of particles that are unevenly distributed throughout.

c)

An aqueous solution is a homogeneous mixture.

d)

Mixtures are physically combined.

63.

Which chemistry concept is false?

a)

Distillation separates mixtures based on a difference in boiling points.

b)

Filtration separates mixtures based on a difference in particle size.

c)

Chromatography separates mixtures based on polarity.

d)

Distillation separates mixtures based on a difference in particle size.

64.

Which chemistry concept is false?

a)

Elements along the staircase of the periodic table are called metalloids (except Al).

b)

Elements to the left of the staircase are nonmetals.

c)

Elements to the left of the staircase are called metals (except H).

d)

Elements to the right of the staircase are called nonmetals.

65.

True or False: mmHg is a unit of volume.

a)

True

b)

False

66.

True or False: mL is a unit of volume.

a)

True

b)

False

67.

True or False: atm is a unit of pressure.

a)

True

b)

False

68.

Convert: 67 oC to K

(a)  

69.

According to Boyle's Law, as volume decreases, pressure will ​ (a)   .

Choose from the below words
increase
decrease
stay the same
become nonexistent
70.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
71.

How do you solve the following problem: How many grams are there in 7.5 moles of H2SO4?

a)

Convert liters to moles then moles to grams

b)

Convert particles to moles then moles to grams

c)

Convert moles to grams

d)

Convert grams to moles

72.
Question Image

Match the following...

a)

You convert moles to grams by...

1.

multiplying by the molar mass

b)

You convert liters to moles by...

2.

dividing by 22.4L

c)

You convert moles to particles by...

3.

multiplying my avagadro's constant

d)

You convert grams to moles by...

4.

dividing by the molar mass

e)

You convert moles to liters by...

5.

multiplying by 22.4L

73.
How many atoms of iodine are in a mole of iodine?
a)
53
b)
63.55g
c)
126.9
d)
6.02 x 1023
74.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
75.

How many moles are in 8.30 X 1023 molecules of H2O?

a)

1.38 X 1023 moles H2O

b)

1.38 moles H2O

c)

2 moles H2O

d)

1 mole H2O

76.

How many moles there are in 5.68 x 1024 formula units of AlCl3?

a)

3.42 x 1024 moles

b)

9.44 x 1024 moles

c)

9.44 moles

d)

3.42 moles

77.
As number of moles goes up, volume 
a)
goes down.
b)
goes up.
c)
stays the same
78.
At STP, what is pressure in atmospheres?
a)
1 atm
b)
10 atm
c)
0 atm
d)
100 atm
79.

Solve the following problem:

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

a)

106.55 K

b)

53.3 L

c)

293 K

d)

64.15 L

80.

What does the variable "n" represent in the ideal gas law?

a)

pressure

b)

volume

c)

moles

d)

the gas constant

e)

temperature

81.

What does the variable "R" represent in the ideal gas law?

a)

pressure

b)

volume

c)

moles

d)

the gas constant

e)

temperature

82.
PV=nRT
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
83.
A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 1.00 atm, what is the new pressure?
a)
0.78 atm
b)
1.65 atm
c)
1.28 atm
d)
0.61 atm
84.

If 10L of Oxygen at 273K and 1 atm is compressed to a 7L container at 250K, what is the new pressure?

a)

6.0 atm

b)

9.16 atm

c)

0.76 atm

d)

1.31 atm

85.

Which physical characteristics allow you to separate SAND. Check all that applies.

a)

Dissolves

b)

Floats

c)

Magnetic

d)

Filter

86.

Which physical characteristics allow you to separate SALT. Check all that applies.

a)

Dissolves

b)

Floats

c)

Magnetic

d)

Filter

87.

What quantity is the same among atoms of the same element?

a)

mass number

b)

atomic number

c)

number of neutrons

d)

number of nucleons

88.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
89.

How many electrons can a d sublevel hold?

a)

14

b)

10

c)

2

d)

6

90.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
91.

How many electrons can a d sublevel hold?

a)

14

b)

10

c)

2

d)

6

92.

How many orbitals does an s sublevel have?

a)

1

b)

3

c)

5

d)

7

93.

How many orbitals does a d sublevel have?

a)

1

b)

3

c)

5

d)

7

94.

How many orbitals does an f sublevel have?

a)

1

b)

3

c)

5

d)

7

95.

What are the orbitals for n=4

a)

s

b)

s, p

c)

s, p, d

d)

s, p, d, f

96.

How many electrons can an d sublevel hold?

a)

5

b)

10

c)

6

d)

2

97.

How many f orbitals can an f sublevel hold?

a)

1

b)

7

c)

5

d)

14

98.

What are the orbitals that make up the n=1 energy level?

a)

s

b)

s, p

c)

s, p, d

d)

s, p, d, f

99.
How many atomic orbitals are there in the d sublevel?
a)
3
b)
4
c)
5
d)
6
100.

Electrons fill energy levels and sublevels _____ in energy first.

a)

lower

b)

higher

101.
The second energy level (n=2) contains a total of 5 electrons...how many more electrons can fit in the 2nd energy level?
a)
0
b)
3
c)
5
d)
7
102.
Which of the following statements is true about the 3s and the 4s sublevels?
a)
These sublevels have the same energy
b)
These sublevels are the same distance from the nucleus
c)
These sublevels hold different amounts of electrons
d)
These sublevels have the same shape
103.

The maximum number of electrons that can fit into the 2nd energy level is

a)

2

b)

8

c)

18

d)

32

104.

Theoretically, the fifth energy level of an atom can hold a maximum of ________ sublevels?

a)

2

b)

4

c)

5

d)

6

105.

Which of the following units is represented simply by a letter?

a)

orbital

b)

energy level

c)

sublevel

d)

quantum number

106.

For each of the following sublevels, which is lowest in energy?

a)

4s

b)

3d

c)

4p

d)

5s

107.

Of the following sublevels, which is the highest in energy?

a)

4s

b)

3d

c)

4p

d)

5s

108.
What is the shape of s orbitals?
a)
Dumbbell shaped
b)
Peanut shaped
c)
Spherical shaped
d)
Hybrid structure
109.

Region of high probability of finding an electron

a)

atomic orbital

b)

ground state

c)

Heisenberg uncertainty principle

d)

electron configuration

110.

How many electrons are in this atom?

a)

6

b)

12

c)

4

d)

Impossible to determine

111.

How many sublevels are in this atom?

a)

4

b)

6

c)

12

d)

Impossible to determine

112.

How are electrons indicated in this diagram?

a)

a single box

b)

a set of boxes

c)

An arrow

d)

There are no electrons in this atom

113.

What is this?

a)

Electron configuration

b)

Orbital Diagram

c)

Arrow diagram

d)

Aufbau diagram

114.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
115.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
116.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
117.

What are valence electrons?

a)

The innermost electrons

b)

The outermost electrons

118.

What is the octet rule?

a)

Elements can only have 8 electrons in its outermost shell

b)

The elements must form an octopus like structure

119.

How many valence electrons does Carbon have

a)

1

b)

4

120.

How many valence electrons does Argon have

a)

8

b)

11

121.

Electron dot notation is . . . .

a)

A representation of an element in which only valence electrons of an atom are shown

b)

A representation of how compounds are formed.

122.
How many electrons should Helium have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
123.

Which of the elements in the picture has correct electron dot notation?

a)

1

b)

2

c)

3

d)

4

124.

The elements on the Periodic Table are arranged in order of increasing

a)

atomic mass

b)

atomic number

c)

oxidation number

d)

formula units

125.

The elements in Group 2 are classified as

a)

metals

b)

metalloids

c)

nonmetals

d)

noble gases

126.

Compared to the atoms of nonmetals in Period 3, the atoms of metals in Period 3 have

a)

fewer electron shells

b)

more electron shells

c)

more valence electrons

d)

fewer valence electrons

127.

At STP, which element is a good conductor of electricity?

a)

chlorine

b)

iodine

c)

silver

d)

sulfur

128.

Which elements have the most similar chemical properties?

a)

Si, As, and Te

b)

Mg, Sr, and Ba

c)

N2, O2, and F2

d)

Ca, Cs, and Cu

129.

Which list represents the classification of the elements nitrogen, neon, magnesium and silicon, respectively?

a)

metal, metalloid, nonmetal, noble gas

b)

nonmetal, noble gas, metal, metalloid

c)

nonmetal, metalloid, noble gas, metal

d)

noble gas, metal, metalloid, nonmetal

130.

Which element is an alkali metal?

a)

hydrogen

b)

calcium

c)

sodium

d)

zinc

131.

Which element is a member of the halogen family?

a)

K

b)

B

c)

I

d)

S

132.

Which properties most accurately describe the element Krypton (Kr)?

a)

Highly reactive

b)

Ductile

c)

Weak conductor of electricity

d)

Has 8 valence electrons

e)

Brittle and dull

133.

Each horizontal row on the periodic table is called a what?

a)

Group

b)

Row

c)

Period

d)

Family

134.

A neutral atom of _____________ has 52 electrons.

a)

Chromium

b)

Tellurium

c)

Manganese

d)

Antimony

135.

Identify the unknown atom.

a)

Flourine

b)

Beryllium

c)

Boron

d)

Helium

Similar Resources on Wayground

Unit 3 Review

130 questions

Unit 3 Review

quiz

Worksheet

•

9th - 12th Grade

AP Chemistry Unit 4: IYKYK

138 questions

AP Chemistry Unit 4: IYKYK

quiz

Worksheet

•

12th Grade

Semester 1 Final Review

132 questions

Semester 1 Final Review

quiz

Worksheet

•

10th Grade

9-20-24 quiz Review

134 questions

9-20-24 quiz Review

quiz

Worksheet

•

9th Grade

11 Triple Chemistry Paper 2 Revision 2021

130 questions

11 Triple Chemistry Paper 2 Revision 2021

quiz

Worksheet

•

11th Grade

Chemistry Midterm Review

130 questions

Chemistry Midterm Review

quiz

Worksheet

•

10th - 12th Grade

polaris

136 questions

polaris

quiz

Worksheet

•

8th - 9th Grade

Honors Chemistry Final review

140 questions

Honors Chemistry Final review

quiz

Worksheet

•

10th - 12th Grade